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Other => Off-topic => Topic started by: BFL on May 09, 2012, 09:35:37 PM



Title: 896 mh/s firmware release - Butterfly Labs
Post by: BFL on May 09, 2012, 09:35:37 PM
Along with the beta release of our maintenance and diagnostics tool (EasyMiner), we're making an experimental firmware available for running your Singles at a faster than stock 896 mh/s.

Please be advised that this firmware may not work on all units and it will increase your operating temperature which could bring your unit into a throttle situation depending on the ambient temperature of your operating environment.  The degree of effectiveness will depend on the natural variations in each chip being used.  Many of you will find that you can operate at this speed just fine.  

We've also provided several slower firmwares to allow you to operate your units in a warmer environment without throttling.  (A decrease of just 8 mh/s can drop temperature sensitivity as much as 3C).  In most cases, running just a hair slower results in faster overall speeds compared to frequent throttling.

To experiment with these firmwares, you'll need to use the EasyMiner tool which is now available on our website along with all the new speed files.

http://www.butterflylabs.com/drivers/

Kind regards,
BFL


Update:

   a)  We've now added additional faster firmwares for customer experimentation.
   b)  EasyMiner has been upgraded to 1.1   (minor improvements & two bug fixes)


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: enmaku on May 09, 2012, 09:39:58 PM
Does this experimental firmware void or otherwise affect warranty support?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: BFL on May 09, 2012, 09:43:33 PM
Does this experimental firmware void or otherwise affect warranty support?

Warranty support covers use of any available firmware.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: wknight on May 09, 2012, 09:46:11 PM
Nice release. Any chance for future Mac support?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: bitcoindaddy on May 09, 2012, 10:07:48 PM
Along with the beta release of our maintenance and diagnostics tool (EasyMiner), we're making an experimental firmware available for running your Singles at a faster than stock 864 mh/s.
BFL

I think you mean faster than stock 832 Mh/s


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Inspector 2211 on May 09, 2012, 10:12:38 PM
Along with the beta release of our maintenance and diagnostics tool (EasyMiner), we're making an experimental firmware available for running your Singles at a faster than stock 864 mh/s.
BFL

I think you mean faster than stock 832 Mh/s

No, the BFL spokesperson said it correctly, if a little bit confusingly - I'm adding parentheses for clarity:
we're making an experimental firmware available for running your Singles at a (faster than stock) 864 mh/s


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Cablez on May 09, 2012, 10:32:19 PM
Flashed one cool one of mine and it is now 857 up from 816.  Temps still around 56 degrees. ;D  Very nice work BFL.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: ice_chill on May 09, 2012, 10:41:25 PM
Flashed one cool one of mine and it is now 857 up from 816.  Temps still around 56 degrees. ;D  Very nice work BFL.

Works out at about $40 per year more, so if you have 10 Singles than a nice $400.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: rjk on May 09, 2012, 11:13:23 PM
Hm, I guess pool mining is still disabled in this version.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: bulanula on May 09, 2012, 11:24:09 PM
Hm, I guess pool mining is still disabled in this version.

you mean p2pool probably !


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Gomeler on May 09, 2012, 11:27:07 PM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: rjk on May 09, 2012, 11:27:23 PM
Hm, I guess pool mining is still disabled in this version.

you mean p2pool probably !
No, I mean the inbuilt connection to eclipse. This version can only be used to upload firmware, not mine on eclipse. Presumably that is slated for future release.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 09, 2012, 11:35:38 PM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.
Their speed changes are just adjusting the clock, not the actual sha256 'code'.

Anyone got the tools to generate the source code from the EasyMiner executable and post a link here?
It's .NET v2.0.50727 (and VB in there)
I notice in the binary it detects throttling and was mainly wondering if that was done via simply noticing it's slow to process the nonce range or if there is some way to directly detect the clock/throttle.
No doubt there would be more commands to the BFL than the current VERY SHORT list of: ZGX, ZDX, ZLX and ZFX


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: rjk on May 09, 2012, 11:47:46 PM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.
Their speed changes are just adjusting the clock, not the actual sha256 'code'.

Anyone got the tools to generate the source code from the EasyMiner executable and post a link here?
It's .NET v2.0.50727 (and VB in there)
I notice in the binary it detects throttling and was mainly wondering if that was done via simply noticing it's slow to process the nonce range or if there is some way to directly detect the clock/throttle.
No doubt there would be more commands to the BFL than the current VERY SHORT list of: ZGX, ZDX, ZLX and ZFX
Didn't they also just mention ZMX to blink the front LED?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Gomeler on May 10, 2012, 12:38:29 AM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.
Their speed changes are just adjusting the clock, not the actual sha256 'code'.

Anyone got the tools to generate the source code from the EasyMiner executable and post a link here?
It's .NET v2.0.50727 (and VB in there)
I notice in the binary it detects throttling and was mainly wondering if that was done via simply noticing it's slow to process the nonce range or if there is some way to directly detect the clock/throttle.
No doubt there would be more commands to the BFL than the current VERY SHORT list of: ZGX, ZDX, ZLX and ZFX

I gathered that, but it is worth asking if they'd open source their bitstream so the community could potentially spur their project along. I imagine if they are using Spartan6 cores for the Mini Rig they'll be using or at least starting with the open source Spartan6 bitstreams..


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: rjk on May 10, 2012, 01:08:41 AM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.
Their speed changes are just adjusting the clock, not the actual sha256 'code'.

Anyone got the tools to generate the source code from the EasyMiner executable and post a link here?
It's .NET v2.0.50727 (and VB in there)
I notice in the binary it detects throttling and was mainly wondering if that was done via simply noticing it's slow to process the nonce range or if there is some way to directly detect the clock/throttle.
No doubt there would be more commands to the BFL than the current VERY SHORT list of: ZGX, ZDX, ZLX and ZFX

I gathered that, but it is worth asking if they'd open source their bitstream so the community could potentially spur their project along. I imagine if they are using Spartan6 cores for the Mini Rig they'll be using or at least starting with the open source Spartan6 bitstreams..
Since when do the mini-rigs use Spartan 6 chips? That was idiotic speculation from earlier. The mini-rig modules still only have 2 chips, and a total hashrate of greater than 2x Spartan 6.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: fizzisist on May 10, 2012, 02:10:09 AM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.
Their speed changes are just adjusting the clock, not the actual sha256 'code'.

Anyone got the tools to generate the source code from the EasyMiner executable and post a link here?
It's .NET v2.0.50727 (and VB in there)
I notice in the binary it detects throttling and was mainly wondering if that was done via simply noticing it's slow to process the nonce range or if there is some way to directly detect the clock/throttle.
No doubt there would be more commands to the BFL than the current VERY SHORT list of: ZGX, ZDX, ZLX and ZFX

I gathered that, but it is worth asking if they'd open source their bitstream so the community could potentially spur their project along. I imagine if they are using Spartan6 cores for the Mini Rig they'll be using or at least starting with the open source Spartan6 bitstreams..
Since when do the mini-rigs use Spartan 6 chips? That was idiotic speculation from earlier. The mini-rig modules still only have 2 chips, and a total hashrate of greater than 2x Spartan 6.

Hey, it could still be Spartan 6, but they ran a simulation that said they could get 700 MH/s out of each chip. :) But, they didn't believe the power numbers from the simulation (once bitten, twice shy), so they took the power/performance numbers that people get for the Spartan 6 at 200 MH/s. :D

In all seriousness, it seems most likely to me that they found a source for another chip like this one (read: used), but 45 nm technology, and they predict they will get those performance specs. At least now the power numbers are more reasonable. It's just the price that doesn't make sense otherwise.

You're right, though, I wouldn't speculate that BFL will suddenly go open source with the release of the mini rig, since it's definitely not a Spartan 6.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: rjk on May 10, 2012, 02:12:52 AM
Could be that the Stratix III was just a prototype for a Hardcopy sASIC, and they decided that they could sell some EOL chips while building a "new" chip on a dead process. Hmm. I wonder if the Mini-rig is fully reprogrammable in the same manner as the single...


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Gomeler on May 10, 2012, 02:38:09 AM
Nice to see you guys offering more speed to existing customers. Any chance you guys would open up your development to the community? This might yield additional speed increases and increase the value of the product you are selling.
Their speed changes are just adjusting the clock, not the actual sha256 'code'.

Anyone got the tools to generate the source code from the EasyMiner executable and post a link here?
It's .NET v2.0.50727 (and VB in there)
I notice in the binary it detects throttling and was mainly wondering if that was done via simply noticing it's slow to process the nonce range or if there is some way to directly detect the clock/throttle.
No doubt there would be more commands to the BFL than the current VERY SHORT list of: ZGX, ZDX, ZLX and ZFX

I gathered that, but it is worth asking if they'd open source their bitstream so the community could potentially spur their project along. I imagine if they are using Spartan6 cores for the Mini Rig they'll be using or at least starting with the open source Spartan6 bitstreams..
Since when do the mini-rigs use Spartan 6 chips? That was idiotic speculation from earlier. The mini-rig modules still only have 2 chips, and a total hashrate of greater than 2x Spartan 6.

I said if, not it is. No need to get uppity.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 10, 2012, 03:34:02 AM
Well - looks like the command to upload the bitstream is 'ZAX' ... however more information is highly likely required to do the upload :(


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Buckwheet on May 10, 2012, 03:52:44 AM
Flashed one cool one of mine and it is now 857 up from 816.  Temps still around 56 degrees. ;D  Very nice work BFL.

Flashed one of mine and also getting 857, but my temps are 49C.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: xDGDZEx on May 10, 2012, 05:45:43 AM
Flashed one cool one of mine and it is now 857 up from 816.  Temps still around 56 degrees. ;D  Very nice work BFL.

Flashed one of mine and also getting 857, but my temps are 49C.

Third person also getting 857 MH. Out of 6 rev3's and 2 rev2's, three of the rev3's will run (at 857) without throttling.

Temps are ~55,57,62C on the ones with the higher clocks.

Also interesting note, all units are spaced roughly the same distance apart, and the 857 units do not have significantly higher temps than the stock units.



Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Fefox on May 10, 2012, 08:36:49 AM


so far 857.7Mh/s with the bitminter miner and no throttling....

when does the 900 Mh/s firmware come out?  ;D


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: nbtcminer on May 10, 2012, 09:05:55 PM
Flashed one cool one of mine and it is now 857 up from 816.  Temps still around 56 degrees. ;D  Very nice work BFL.

Flashed one of mine and also getting 857, but my temps are 49C.

Third person also getting 857 MH. Out of 6 rev3's and 2 rev2's, three of the rev3's will run (at 857) without throttling.

Temps are ~55,57,62C on the ones with the higher clocks.

Also interesting note, all units are spaced roughly the same distance apart, and the 857 units do not have significantly higher temps than the stock units.



In a fairly cold room; also getting 857.7 at around 43-43.7C. Nice work BFL!


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Epoch on May 10, 2012, 09:38:01 PM
This may be surprising to some, but I'm generally more interested in the slower firmware.

I've replaced the stock fans with (much) quieter ones, accepting that some units will occasionally throttle due to the lowered CFM. By loading the 800 or 792 firmware onto those marginal units, I'm able to eliminate throttling and increase their effective speed.

The various firmware versions give me a way to optimize speed vs. noise that wasn't available before. Much appreciated.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: bombo999 on May 10, 2012, 09:47:44 PM
has anyone else encountered a firmware integrity failure ... after attempting to upgrade the firmware ... the following message is listed in the device information ... "Firmware integrity test failed.  Reflash required."


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: BFL-Engineer on May 10, 2012, 10:07:21 PM
has anyone else encountered a firmware integrity failure ... after attempting to upgrade the firmware ... the following message is listed in the device information ... "Firmware integrity test failed.  Reflash required."


This happens if during the firmware upload something goes wrong ( power failure, device disconnect, etc).
Once this happens, the unit must be re-flashed.


Regards,
BF Labs Inc.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 11, 2012, 03:27:19 AM
Although I'm seeing more MH/s wit the 863 firmware, My "U" in cgminer has gone down and the pools reported GH/s is down too. My average MH/s as reported by cgminer is up about 300MH/s across my 10 singles.

Any thoughts on why the cgminer reported MH/s is up but less work being reported by the pool?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 11, 2012, 03:41:24 AM
Although I'm seeing more MH/s wit the 863 firmware, My "U" in cgminer has gone down and the pools reported GH/s is down too. My average MH/s as reported by cgminer is up about 300MH/s across my 10 singles.

Any thoughts on why the cgminer reported MH/s is up but less work being reported by the pool?
Most likely: U is random - just like block finding.
Check it again in a few days :)


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 11, 2012, 03:45:10 AM
Although I'm seeing more MH/s wit the 863 firmware, My "U" in cgminer has gone down and the pools reported GH/s is down too. My average MH/s as reported by cgminer is up about 300MH/s across my 10 singles.

Any thoughts on why the cgminer reported MH/s is up but less work being reported by the pool?
Most likely: U is random - just like block finding.
Check it again in a few days :)

Ok, but they have always reported as 8+GH/s on the pools but now only 7.x GH/s.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: -ck on May 11, 2012, 03:46:34 AM
Although I'm seeing more MH/s wit the 863 firmware, My "U" in cgminer has gone down and the pools reported GH/s is down too. My average MH/s as reported by cgminer is up about 300MH/s across my 10 singles.

Any thoughts on why the cgminer reported MH/s is up but less work being reported by the pool?
Most likely: U is random - just like block finding.
Check it again in a few days :)

Ok, but they have always reported as 8+GH/s on the pools but now only 7.x GH/s.
The pools report based on your U. So if you're unlucky for a while, your U goes down, and your pool reports it slower. Doesn't mean you're actually hashing slower for that period.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 11, 2012, 03:52:49 AM
Although I'm seeing more MH/s wit the 863 firmware, My "U" in cgminer has gone down and the pools reported GH/s is down too. My average MH/s as reported by cgminer is up about 300MH/s across my 10 singles.

Any thoughts on why the cgminer reported MH/s is up but less work being reported by the pool?
Most likely: U is random - just like block finding.
Check it again in a few days :)

Ok, but they have always reported as 8+GH/s on the pools but now only 7.x GH/s.
The pools report based on your U. So if you're unlucky for a while, your U goes down, and your pool reports it slower. Doesn't mean you're actually hashing slower for that period.

Thank you for the explanation. Makes perfect sense. Does the U also go down when the difficulty goes up?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 11, 2012, 03:56:10 AM
Although I'm seeing more MH/s wit the 863 firmware, My "U" in cgminer has gone down and the pools reported GH/s is down too. My average MH/s as reported by cgminer is up about 300MH/s across my 10 singles.

Any thoughts on why the cgminer reported MH/s is up but less work being reported by the pool?
Most likely: U is random - just like block finding.
Check it again in a few days :)

Ok, but they have always reported as 8+GH/s on the pools but now only 7.x GH/s.
The pools report based on your U. So if you're unlucky for a while, your U goes down, and your pool reports it slower. Doesn't mean you're actually hashing slower for that period.

Thank you for the explanation. Makes perfect sense. Does the U also go down when the difficulty goes up?

Statistically - no.
(but of course, the value of your shares will drop)


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: -ck on May 11, 2012, 05:05:37 AM
Thank you for the explanation. Makes perfect sense. Does the U also go down when the difficulty goes up?
The utility is based on the difficulty shares you are mining for. Most pools work with difficulty one shares, regardless of the overall bitcoin block difficulty. About the only time you are mining for different difficulty shares is when you're mining on p2pool. (unrelated) However p2pool is a terrible choice to mine with these devices on because of the ~25% work lost.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: nbtcminer on May 11, 2012, 03:49:56 PM
This may be surprising to some, but I'm generally more interested in the slower firmware.

I've replaced the stock fans with (much) quieter ones, accepting that some units will occasionally throttle due to the lowered CFM. By loading the 800 or 792 firmware onto those marginal units, I'm able to eliminate throttling and increase their effective speed.

The various firmware versions give me a way to optimize speed vs. noise that wasn't available before. Much appreciated.


@Epoch:

Just curious, what brand / model fan did you replace the stock one with?


-nbtcminer


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: abbeytim on May 11, 2012, 05:14:18 PM
heres screenshot with new firmware http://i.imgur.com/dqOYX.jpg  ;D


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Epoch on May 11, 2012, 05:30:29 PM
This may be surprising to some, but I'm generally more interested in the slower firmware.

I've replaced the stock fans with (much) quieter ones, accepting that some units will occasionally throttle due to the lowered CFM. By loading the 800 or 792 firmware onto those marginal units, I'm able to eliminate throttling and increase their effective speed.

The various firmware versions give me a way to optimize speed vs. noise that wasn't available before. Much appreciated.

Just curious, what brand / model fan did you replace the stock one with?

I've tried nearly 10 different fans on my Singles; the one I ended up using is the Silenx Effizio EFX-09-15. For what I was looking for, it had the best balance of silence and airflow of the models I've tried.

Out of nine 832Mhps Singles that I have so far retrofitted, 4 run without throttling even up to 27C ambient but the 5 others throttle.

For the 5 throttling ones, I've loaded 800Mhps firmware which allows them to run full-speed (no throttling). Your mileage may vary, of course.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: xDGDZEx on May 11, 2012, 08:58:56 PM
This may be surprising to some, but I'm generally more interested in the slower firmware.

I've replaced the stock fans with (much) quieter ones, accepting that some units will occasionally throttle due to the lowered CFM. By loading the 800 or 792 firmware onto those marginal units, I'm able to eliminate throttling and increase their effective speed.

The various firmware versions give me a way to optimize speed vs. noise that wasn't available before. Much appreciated.


I too, am glad for this. Three of my singles would do this thing where they would clearly throttle (reduced output on cgminer) but they wouldn't blink their LEDs. I just installed the 816 MH firmware and now they are sitting at 811 MH and are rock solid. Actually increased my (avg) hash rate from ~6200 to ~6500


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 11, 2012, 09:21:20 PM
heres screenshot with new firmware http://i.imgur.com/dqOYX.jpg  ;D

 I posted this on another thread too but its best here.

864 runs great on mine too. However, even though the Hash rate is increased, the performance is decreased. I can not figure out why but when I went back to 832 I am doing better than at 862. If mine were throttling I could not tell. No blinking light and hash rate was at expected rate. Just very low U.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: Cablez on May 11, 2012, 09:58:23 PM
If you run the easyminer test sequence it will tell you if the unit throttles.  Maybe that is worth a try.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 12, 2012, 03:25:13 AM
just flashed one of mine, seems to be working just fine.

The temps of my 4 units are: 53, 57, 42 & 52. I flashed the 41, and it went up to 47. Hashing from 825 to 856.

Respectable.

Edit:
Tell a Lie, it wasn't 41 before it was 46, so temp hasn't really changed.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 04:43:49 AM
just flashed one of mine, seems to be working just fine.

The temps of my 4 units are: 53, 57, 42 & 52. I flashed the 41, and it went up to 47. Hashing from 825 to 856.

Respectable.

Does the pool you use report your hash rate as increased? I have reflashed back to 832 and then back to 864 again. I get much better pool reported rates and U when I am at 832 than when I am at 864. I can not understand it really. the hash rate reported by cgminer is correct for each firmware but the actual performance is worse at the higher hash rate.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 12, 2012, 05:24:11 AM
Hash rate from a pool is so variable it's difficult to say. I'll see if there's any obvious trend over a few days.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: bitpop on May 12, 2012, 05:52:52 AM
What is U?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 12, 2012, 05:54:18 AM
What is U?

Female sheep, init?


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: bitpop on May 12, 2012, 05:56:39 AM
wtf


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 12, 2012, 05:58:18 AM
 ::)

U is shares per minute.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 06:00:24 AM
I'm most familiar with cgminer. Other miners may refer to shares per minute differently. For cgminer its called U.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 06:19:09 AM
On the 864 firmware after 14 hours I get U of  9.59 to 11.91. 4 have U of 9.x, 2 have 10.x and 4 have 11.x

When they are all using 832 I get U of 11.0 to 11.55. Very tight compared to the 864 firmware.


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 12, 2012, 07:22:26 AM
On the 864 firmware after 14 hours I get U of  9.59 to 11.91. 4 have U of 9.x, 2 have 10.x and 4 have 11.x

When they are all using 832 I get U of 11.0 to 11.55. Very tight compared to the 864 firmware.
Wow bad numbers there.
OK I'm gonna state a list of numbers but explain them first for the obvious reason :)
Explanation: over a VERY long period of time the below constant hash rates (MH/s) should give the U: values (Shares/Minute)
Code:
3 digit accuracy ...

MH/s     Shares/Minute
 823              11.5
 817              11.4
 808              11.3
 800              11.2
 795              11.1
Now the MH/s number spacing is not exactly in the middle of each range they just happen to land where I expected them to land.
The actual calculation is of course simple: Hash x 10^6 x 60 / 2^32

But anyway what that says about your setup is that the 864 is throttling in all cases you are using it - so don't use it on the 9.x and 10.x at all and only on the 11.x if it is giving long term better than 11.4 which is what you should be getting on 832

Looking at my 832 right now (which shows a max of around 826), I have average 818.65 MH/s and 11.49 shares/minute after 1day 22h 37m 54s
818.65 is actually a little higher than I have been having in the previous difficulty but maybe that is difficulty related ...
(that's most likely the reason since block time has increased a bit since the difficulty change - since LP's cause the drop from 826 to 818.65)
Being almost 2 days means that my average hash rate and the U: figure are close
(as is very likely after that long)
It would eventually arrive at 11.44


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: bitlane on May 12, 2012, 07:35:17 AM
From my experience using CGMiner (and every miner for that matter) if an increase in Clock speed results in a lower share/minute rate (after a few hours, or whatever your 'test window is), it usually means that a voltage increase is required (again, my experiences, YMMV).

So, in summation, if the higher clock on the new firmware is leaving you with less shares/minute, you may have very well found the limitation for your FPGA, where as the lower clock produces more shares and less stress on the FPGA (your miner will report a higher MH/s rate with the higher clocks, but the pool will report slower performance as it is share/minute based stats).

Of course, this was using GPUs and not FPGAs.....so please be gentle when replying to me...hehe

More MH/s doesn't always translate into more shares/minute....

Just a thought... ;)


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 12, 2012, 12:08:58 PM
If you really do have an increased hash rate you will get more shares.

However if the increase means that the device stalls in any way (in FPGA terms that would be throttles or HW errors - in GPU terms that would be HW errors or 'SICK' in cgminer) then of course you may get overall less total Hashes done - that will be the case if the number of hashes lost during stalls is more that the number gained due to the increase hash rate.

This is what is happening with jddebug.

Somewhat related: I've sent an email to BFL to ask for the details of all the commands and specifically also mentioned the ZAX command so I can see if I can write what should be reasonably simple code to do the bitstream update.
If they don't reply (or wont give that particular command details) then I guess we'll just have to look at the EasyMiner code since that is easily reversed according to someone I had a chat with who had already done it but had difficulty understanding the result (I also worked out that it's just .NET 2 also with VB in it so it shouldn't be hard to determine the actual code - but determining the protocol may or may not be easy)


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 06:35:28 PM
If you really do have an increased hash rate you will get more shares.

However if the increase means that the device stalls in any way (in FPGA terms that would be throttles or HW errors - in GPU terms that would be HW errors or 'SICK' in cgminer) then of course you may get overall less total Hashes done - that will be the case if the number of hashes lost during stalls is more that the number gained due to the increase hash rate.

This is what is happening with jddebug.

Somewhat related: I've sent an email to BFL to ask for the details of all the commands and specifically also mentioned the ZAX command so I can see if I can write what should be reasonably simple code to do the bitstream update.
If they don't reply (or wont give that particular command details) then I guess we'll just have to look at the EasyMiner code since that is easily reversed according to someone I had a chat with who had already done it but had difficulty understanding the result (I also worked out that it's just .NET 2 also with VB in it so it shouldn't be hard to determine the actual code - but determining the protocol may or may not be easy)

What I need is for cgminer to sense the stalls and report them as hardware errors or something like that. I had one single that I tested with easyminer that was having errors at the 864 so I put it to 832 and now no errors. The others reported NO errors and NO stalls with a medium test of 1000. I have sat and watched for long periods of time (boring) and the red light on the front of my Rev 2 singles never blinks. Of course I found I can not get them to blink with the easyminer blink command either so maybe they are not capable of that.

I'm not doubting what you are saying, just wish I could verify it actually happening somehow.

I'm at 12 hours again no. U = 9.78, 9.82, 10.27, 10.28, 11.10 (832 firmware), 11.30, 11.38, 11.51, 11.65, 11.65

Does way better on average when they are all at 832. I'm considering flashing the ones that are below 11.x to 832.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 06:47:31 PM
OK, now I see the topic has changed. Theres a 872 MH firmware out now too. Maybe that will fix my problem (hehe, I don't think so).

Is the order of the singles listed in cgminer the same order that I put them in my config file? com3, com4, com7,com13 etc?

I don't want to reflash the wrong ones.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: Cablez on May 12, 2012, 07:09:40 PM
You can just use the blink command to figure out which are which.  That's what I do.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 12, 2012, 07:14:12 PM
This new firmware is either going exactly half as fast, or is triggering a bug in cgminer to make it display exactly half as fast as it should be going. I suspect the latter.

EDIT: cgminer shows 433 mhash/s


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 07:16:51 PM
You can just use the blink command to figure out which are which.  That's what I do.

Doesn't work with my Rev 2 singles. Mine were part of the first batch I suspect.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: Cablez on May 12, 2012, 07:21:06 PM
This new firmware is either going exactly half as fast, or is triggering a bug in cgminer to make it display exactly half as fast as it should be going. I suspect the latter.

EDIT: cgminer shows 433 mhash/s


Are both active leds on or just one in other words is one FPGA on or two?


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 12, 2012, 07:24:46 PM
This new firmware is either going exactly half as fast, or is triggering a bug in cgminer to make it display exactly half as fast as it should be going. I suspect the latter.

EDIT: cgminer shows 433 mhash/s


Are both active leds on or just one in other words is one FPGA on or two?
Both on, all working AOK, Easyminer ran a successful short diagnostic saying 870 mhash/s, pool shows full speed, so must be a miner bug. Actually, I am using bfgminer 2.3.6, so maybe I will upgrade to the latest. Not sure how much difference there is in the display code for speed between bfgminer and cgminer.

EDIT: Also, the temps have gone up from 60ish degrees C to around 64, and my kill-a-watt says 119.7 watts (!)

EDIT EDIT: Upgrading to BFGMiner 2.4.1 fixed the display bug. Also, the single is steady at 120 watts, up from 80 or so.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 12, 2012, 07:42:22 PM
This new firmware is either going exactly half as fast, or is triggering a bug in cgminer to make it display exactly half as fast as it should be going. I suspect the latter.

EDIT: cgminer shows 433 mhash/s


Are both active leds on or just one in other words is one FPGA on or two?
Both on, all working AOK, Easyminer ran a successful short diagnostic saying 870 mhash/s, pool shows full speed, so must be a miner bug. Actually, I am using bfgminer 2.3.6, so maybe I will upgrade to the latest. Not sure how much difference there is in the display code for speed between bfgminer and cgminer.

EDIT: Also, the temps have gone up from 60ish degrees C to around 64, and my kill-a-watt says 119.7 watts (!)

EDIT EDIT: Upgrading to BFGMiner 2.4.1 fixed the display bug. Also, the single is steady at 120 watts, up from 80 or so.

Those extra hashes are really costing more than they are worth aren't they?



Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 12, 2012, 08:15:56 PM
One of my units, the 47 one, keeps bombing out. Just stops hashing. CGminer says it's disabled, re-enabling it doesn't work. Re-starting CGminer does (for a while).

Gonna try the 872, just for the hell of it.

Edit:
OK the other one I updated just bombed out too :/

Edit2:
After observing it for a while it would seem it bombs out when it throttles. Gonna put them back to 832.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: twmz on May 13, 2012, 12:30:06 AM
One of my units, the 47 one, keeps bombing out. Just stops hashing. CGminer says it's disabled, re-enabling it doesn't work. Re-starting CGminer does (for a while).

Gonna try the 872, just for the hell of it.

Edit:
OK the other one I updated just bombed out too :/

Edit2:
After observing it for a while it would seem it bombs out when it throttles. Gonna put them back to 832.

I had exactly the same problem on one of my units (it was at the stock firmware).  The symptom was that, only under linux, it would die when it throttled.  I sent it back to BFL but they never found a root cause as far as I know.  Under Windows, it was stable (it just slowed down when it throttled instead of dying).


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 13, 2012, 12:31:35 AM
yeah, I think it's a cgminer issue.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: cuz0882 on May 13, 2012, 02:39:34 AM
I have lowered the temp on mine by replacing those cheap spring loaded screws that hold down the heat singe with 1/4 inch (size 4) bolt and screws. I was having trouble with throttling even before the fireware release. Everything works fine now.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 13, 2012, 04:41:42 AM
So this is curious...

The first 2 BFLs I got had a HS on the bottom of the PCB, and had temps of 54 - 58. The 2nd 2 had a HS+fan on the bottom of the PCB and temps of 47 - 50.
I assumed that the lower temp units would allow the higher rate firmware to work, turned out not to be the case and they would throttle, even with the 864 firmware.
I uploaded the 872 firmware on the first 2 units with the higher temps, and they're working perfectly.

I'm thinking Kano is on to something and the temp reported is not related to the temp the unit throttles.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 13, 2012, 03:34:53 PM
Another curious thing I found this morning, One of my 872 units seems to have stalled.
The 5s hash rate was reporting as 857, the ave as 408 and U as 6.92 (this is after running for 12 hours). Disabling, re-enabling the unit did nothing. It appears that some point during the night it got stuck, I guess just reporting busy or something(?), rather than dieing. Re-starting CGminer got it working again.

Def think the cgminer code needs reviewing. I may have a look and try and get my head around it.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: kano on May 13, 2012, 04:47:27 PM
OK, now I see the topic has changed. Theres a 872 MH firmware out now too. Maybe that will fix my problem (hehe, I don't think so).

Is the order of the singles listed in cgminer the same order that I put them in my config file? com3, com4, com7,com13 etc?

I don't want to reflash the wrong ones.
Oh, forgot to mention, if you have the API enabled, the devdetails command will tell you which BLFn is which COMn device in windows
(and of course which /dev/ttyUSBn device in linux)


Title: Re: 864 mh/s firmware release - Butterfly Labs
Post by: kano on May 13, 2012, 05:00:11 PM
...
Somewhat related: I've sent an email to BFL to ask for the details of all the commands and specifically also mentioned the ZAX command so I can see if I can write what should be reasonably simple code to do the bitstream update.
If they don't reply (or wont give that particular command details) then I guess we'll just have to look at the EasyMiner code since that is easily reversed according to someone I had a chat with who had already done it but had difficulty understanding the result (I also worked out that it's just .NET 2 also with VB in it so it shouldn't be hard to determine the actual code - but determining the protocol may or may not be easy)
... and the reply was "No"


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 14, 2012, 05:05:06 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.



Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 14, 2012, 05:19:35 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.
Good to know... thanks for calculating that out.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: pieppiep on May 14, 2012, 05:58:39 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.


You have a little miscalculation
813 / 72 = 11.29 MH/s/W
849 / 77 = 11.03 MH/s/W

Also interesting :
849MH/s - 813MH/s @ 77W - 72W = 36MH/s @ 5W = 7.2 MH/s/W

The 7.2 MH/s/W for the extra power is probably still profitable for you, if not, you better go back to 813 MH/s.


P.S.
I like math :)


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 14, 2012, 06:00:12 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.


You have a little miscalculation
813 / 72 = 11.29 MH/s/W
849 / 77 = 11.03 MH/s/W

Also interesting :
849MH/s - 813MH/s @ 77W - 72W = 36MH/s @ 5W = 7.2 MH/s/W

The 7.2 MH/s/W for the extra power is probably still profitable for you, if not, you better go back to 813 MH/s.


P.S.
I like math :)
How about someone measuring the power draw with each bitstream and creating a table? Mine use between 117 and 120 watts on the 872 bitstream.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 14, 2012, 06:11:09 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.


You have a little miscalculation
813 / 72 = 11.29 MH/s/W
849 / 77 = 11.03 MH/s/W

Also interesting :
849MH/s - 813MH/s @ 77W - 72W = 36MH/s @ 5W = 7.2 MH/s/W

The 7.2 MH/s/W for the extra power is probably still profitable for you, if not, you better go back to 813 MH/s.


P.S.
I like math :)
How about someone measuring the power draw with each bitstream and creating a table? Mine use between 117 and 120 watts on the 872 bitstream.
I'll do it if someone pays for a killawatt for me.  :)


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 14, 2012, 06:23:22 PM
I'd do it... if I could be bothered.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: The00Dustin on May 14, 2012, 07:06:01 PM
I'll do it if someone pays for a killawatt for me.  :)
I don't have a single, so I don't really care, but are you suggesting that it's not worth the fraction of a BTC someone could send you to pay for a kilowatt to know what is most efficient for your own single?


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 14, 2012, 07:07:12 PM
I'll do it if someone pays for a killawatt for me.  :)
I don't have a single, so I don't really care, but are you suggesting that it's not worth the fraction of a BTC someone could send you to pay for a kilowatt to know what is most efficient for your own single?
It'd be closer to 5 BTC, and no, it's not worth it for me to pay for that myself.
http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: The00Dustin on May 14, 2012, 07:13:07 PM
It'd be closer to 5 BTC, and no, it's not worth it for me to pay for that myself.
http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001
OH, a Kill A Watt (I also would  have understood kill a watt, kill-a-watt, Kill-A-Watt, etc, killawatt just looked like a typo for kilowatt).


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 14, 2012, 07:28:53 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.


You have a little miscalculation
813 / 72 = 11.29 MH/s/W
849 / 77 = 11.03 MH/s/W

Also interesting :
849MH/s - 813MH/s @ 77W - 72W = 36MH/s @ 5W = 7.2 MH/s/W

The 7.2 MH/s/W for the extra power is probably still profitable for you, if not, you better go back to 813 MH/s.


P.S.
I like math :)
How about someone measuring the power draw with each bitstream and creating a table? Mine use between 117 and 120 watts on the 872 bitstream.
I'll do it if someone pays for a killawatt for me.  :)
Not worth it I guess, there must be too many hardware variations for it to be useful. P_Shep's unit with the 872 bitstream gets 849 mhash/s at 77 watts, but mine with the same bitstream gets 866 at 120 watts.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: fizzisist on May 14, 2012, 08:20:08 PM
Just doing some math...

With 4 @ 832, I was drawing 300W at the wall including the router (12W), so (300-12)/4 = 72W per BFL.

Currently have 2 @ 872, and 2 @ 832, drawing 310W at the wall including the router (the other 2 won't run at 872).

So with 72W per 832 unit, the 872 units must be using ((310-12) - (2*72))/2 = 77W.

Comparing hash rates:
832: 813MH/s @72W = 11.26 MH/s/W
872: 849MH/s @77W = 11.02 MH/s/W

So SLIGHTLY less efficient.


You have a little miscalculation
813 / 72 = 11.29 MH/s/W
849 / 77 = 11.03 MH/s/W

Also interesting :
849MH/s - 813MH/s @ 77W - 72W = 36MH/s @ 5W = 7.2 MH/s/W

The 7.2 MH/s/W for the extra power is probably still profitable for you, if not, you better go back to 813 MH/s.


P.S.
I like math :)
How about someone measuring the power draw with each bitstream and creating a table? Mine use between 117 and 120 watts on the 872 bitstream.
I'll do it if someone pays for a killawatt for me.  :)
Not worth it I guess, there must be too many hardware variations for it to be useful. P_Shep's unit with the 872 bitstream gets 849 mhash/s at 77 watts, but mine with the same bitstream gets 866 at 120 watts.

These measurements should really be done at the board level, measuring DC current and voltage. Ideally it would be done on a large sample pool, too, but at least looking at the power dependence on hashrate for a single board under the same conditions (ambient temp, airflow, etc) should be enough to infer how much your own profit will increase or decrease for your slightly different board.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 14, 2012, 08:27:26 PM
It'd be closer to 5 BTC, and no, it's not worth it for me to pay for that myself.
http://www.newegg.com/Product/Product.aspx?Item=N82E16882715001
OH, a Kill A Watt (I also would  have understood kill a watt, kill-a-watt, Kill-A-Watt, etc, killawatt just looked like a typo for kilowatt).
Yeah, my bad.  I did make it unclear without any spacing.

Not worth it I guess, there must be too many hardware variations for it to be useful. P_Shep's unit with the 872 bitstream gets 849 mhash/s at 77 watts, but mine with the same bitstream gets 866 at 120 watts.
Wow, that is quite a difference!

For reference, I'm getting 850 MH/s on both of the miners that arrived using the 864 bitstream.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 14, 2012, 08:46:56 PM
120W on 1 single? That don't seem right. ???


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 14, 2012, 09:16:18 PM
120W on 1 single? That don't seem right. ???
My kill-a-watt doesn't lie. ;D
However, I am using the stock power pack, and you are using an efficient PSU, so that could be where the difference went.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 14, 2012, 11:16:33 PM
120W on 1 single? That don't seem right. ???
My kill-a-watt doesn't lie. ;D
However, I am using the stock power pack, and you are using an efficient PSU, so that could be where the difference went.

Yeah, but 40W difference? Does that include the controller PC / 40W lamp too?


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 15, 2012, 12:09:42 AM
120W on 1 single? That don't seem right. ???
My kill-a-watt doesn't lie. ;D
However, I am using the stock power pack, and you are using an efficient PSU, so that could be where the difference went.

Yeah, but 40W difference? Does that include the controller PC / 40W lamp too?
Ah heck, thanks for making me look again. It seems that the power must have gone out, and it reverted back to reading the voltage.  >:(
However, on the old bitstream it was pulling about 80 watts, now on the faster one it is pulling about 90. Stock power brick is the only thing plugged into the kill-a-watt.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: kano on May 15, 2012, 12:59:30 AM
Ah good - I was rather reluctant to try the higher clock bitstreams when I saw that figure ...
Glad to know it was a accidental mistake.

But ignoring some vague post by someone else about it ...
yes I'd expect the gain in MH/s (M%) vs power increase (P%) to certainly be P% > M%

... now where's the USB boot I want ... :D


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: rjk on May 15, 2012, 01:22:05 AM
... now where's the USB boot I want ... :D
Sorry, I googled for a while and came to the conclusion that it is only possible to create bootable Windows USB drives from within Windows, unless you do a lot of hacking within your *nix environment.
Additionally that Windows 7 is orders of magnitude easier to use on a USB than XP is.
Tips: Format as NTFS, otherwise not much is going to work. Chainloading with syslinux may be possible. dd if/of from an ISO to a device probably won't work. Sorry, I can't do much else for you unless you have a windows box somewhere. Using Virtualbox might work, but you can't use vbox OSE because it doesn't have USB support. Download the compiled version with non-free components built in if you want to use USB passthrough.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 15, 2012, 06:19:07 AM
I get 850 Mhps with the 862 firmware, and 856 Mhps with the 872 firmware.

Interesting.  Only 6/10 increase in hashing power.

Temps are interesting... I have a 6" fan blowing on them all.  The closest one to the fan is 52C, 2nd closes is 47C, third is 47C and fourth is 55C.  Definitely a variety of temps!  So far, no throttling though.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 15, 2012, 07:20:20 AM
I flashed 4 brand new singles with the 872 firmware. Plugged them into my Kill-O-Watt using stock power supply on each.

With the 832 firmware they took total of 322 watts.

With the 872 firmware they take a total of 336 watts.

Went from 3250 MH/s to 3400 MH/s.  EDIT: I had mistyped as 3340.

(cgminer) U went from 44 to U of 48

I believe I'm seeing some throttling occurring on 2 of them although the light never seems to blink. I'll flash them to the next level down and see that I get.



Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: kano on May 15, 2012, 07:28:37 AM
Well those figures are as I expected: P% > M%
(4.35% > 2.77%) i.e. the power increase % is greater than the MH/s increase %


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 15, 2012, 07:40:59 AM
Well those figures are as I expected: P% > M%
(4.35% > 2.77%) i.e. the power increase % is greater than the MH/s increase %

See my edit. I had mistyped the MH/s


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: wogaut on May 17, 2012, 06:25:34 PM
I flashed 4 brand new singles with the 872 firmware. Plugged them into my Kill-O-Watt using stock power supply on each.

With the 832 firmware they took total of 322 watts.

With the 872 firmware they take a total of 336 watts.

Went from 3250 MH/s to 3400 MH/s.  EDIT: I had mistyped as 3340.

(cgminer) U went from 44 to U of 48

I believe I'm seeing some throttling occurring on 2 of them although the light never seems to blink. I'll flash them to the next level down and see that I get.

So with those numbers you have about the same MH/W just dividing the numbers you posted (the throttling might result in some variability over time).
That is good to hear, as this would mean you just got 4.6% more Singles (if stable).



Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: e21 on May 20, 2012, 01:00:06 AM
1 Revision 3 single, using stock power supply, measured using Kill-a-Watt load meter:

81 Watts with the 832MH/s firmware @832MH/s
84.5 Watts with 872MH/s firmware @~870MH/s, 0 throttles, ~49*C average temp

Thanks BFL!

EDIT: throttles once every 10-15 minutes or so on 872 MH/s firmware; ambient temp is ~24*C right now. Going to try placing it in an area with better air-flow and see if throttling stops altogether.

EDIT: moved and temps stay under 48*C now, 0 throttles


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: wogaut on May 22, 2012, 09:05:05 PM
Boy, that firmware update almost gave me a heart attack.  :'(
My single was happily mining at 832MH/s and 48deg C with zero errors, so I gave the update a try.
I ended up getting about 440MH/s average on the 864 update and 370MH/s average on the 872 update, with mining rates fluctuating widely between 75 and 850MH/s and error rate through the roof, while FPGA temps were about 34deg C.

So I flashed it back to the default 832MH/s firmware and it's happily mining again as before.





Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on May 28, 2012, 08:54:16 AM
One of my singles worked with the 872 firmware without further improvements.
On the others I had to improve the cooling/airflow - now they are also working @872 without problems.

@BFL: Any plans to release further firmwares with a higher clockrate? I wonder why you stop with the 872 firmware. Could it be that something else (e.g. voltage regulators) could overheat because they are not or not sufficient covered by the existing one-point temperature monitoring? 


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: jddebug on May 28, 2012, 09:45:01 AM
One of my singles worked with the 872 firmware without further improvements.
On the others I had to improve the cooling/airflow - now they are also working @872 without problems.

@BFL: Any plans to release further firmwares with a higher clockrate? I wonder why you stop with the 872 firmware. Could it be that something else (e.g. voltage regulators) could overheat because they are not or not sufficient covered by the existing one-point temperature monitoring? 

I'm interested in what you did to improve cooling/airflow.

Thanks


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 28, 2012, 06:11:18 PM
One of my singles worked with the 872 firmware without further improvements.
On the others I had to improve the cooling/airflow - now they are also working @872 without problems.

@BFL: Any plans to release further firmwares with a higher clockrate? I wonder why you stop with the 872 firmware. Could it be that something else (e.g. voltage regulators) could overheat because they are not or not sufficient covered by the existing one-point temperature monitoring? 
Probably because a large percentage of miners wouldn't even be able to run that clockrate without throttling, and people would complain even more than they are.


Title: Re: 872 mh/s firmware release - Butterfly Labs
Post by: BFL on May 28, 2012, 06:34:51 PM
One of my singles worked with the 872 firmware without further improvements.
On the others I had to improve the cooling/airflow - now they are also working @872 without problems.

@BFL: Any plans to release further firmwares with a higher clockrate? I wonder why you stop with the 872 firmware. Could it be that something else (e.g. voltage regulators) could overheat because they are not or not sufficient covered by the existing one-point temperature monitoring? 
Probably because a large percentage of miners wouldn't even be able to run that clockrate without throttling, and people would complain even more than they are.

Two new faster firmwares have just been released.  As previously noted, these faster firmwares may or may not run without throttling depending on the individual tolerance of any particular unit and the ambient temperature.  Some units will work just fine with these firmwares.  Some will thottle.

880 mh/s
896 mh/s

You can find them on the driver download page:  http://www.butterflylabs.com/drivers/


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Cablez on May 28, 2012, 06:47:56 PM
Give them time to upload it.  Working now.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: bulanula on May 28, 2012, 06:49:21 PM
Thanks for the overclocking support but no other company does this when it could influence warranty issues.

Very strange but AWESOME !


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Fefox on May 28, 2012, 06:53:09 PM
so far so good with 880, 2 units are running fine with no throttle... in the mid 50's for temps.


flashing 2 more now with 896


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 28, 2012, 06:57:50 PM
Jealous - 5/6 of mine won't even run with 832  >:(

That is within their 832 +/- 10% though


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Fefox on May 28, 2012, 07:07:24 PM
Jealous - 5/6 of mine won't even run with 832  >:(

That is within their 832 +/- 10% though

My room temp is 63f im sure if it was 75+ this wouldn't be so nice...


so far with the 896 firmware im getting a solid 888 Mh using bitminter.

one miner is 54c and the other 51c same temps as the two running 880 firmware +-.5c


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 28, 2012, 07:12:31 PM
Yep - 63F room temp is a winner  ;D

That will be me come winter...

That said, my units throttle well before the temp in cgminer hits 53C.  I do have one that runs warmer - 57C now - but is stable with 816 FW.  Avg temps from all units around 51-53C


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Cablez on May 28, 2012, 07:13:08 PM
Yeah I have a range with the units.  I have 2 that will accept the 896 and the others can only do 880.  :-\


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on May 28, 2012, 08:57:45 PM
Thanks for the new firmwares.

I've only tested it on one of my units before I will test it on the others too.
I took my 'best' unit into the test and skipped the 880 firmware and directly run the test with the 896 firmware.

My room temperature is ~26C (~79F) - no A/C or room fan.

My unit (with improved airflow/cooling) is running @ 896 without any problems. The reported unit temperature is still below 40C.
I'm sure the test will run through the night without any following problems.  Tomorrow I will test the other unit too.

From my extrapolation based on my measurements and empiricism I expect that a 960 firmware could also run on this unit. 
So please release additional firmwares with higher clockrates too. I think it's enough to count up in 16 or 24 steps.




Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 28, 2012, 09:16:23 PM
Below 40C and 79F room temp - something isn't correlating...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on May 28, 2012, 09:23:53 PM
Below 40C and 79F room temp - something isn't correlating...

It's correct 26C room temp and 39C reported unit temp.
But it's my best unit, the others have a larger temp delta.
As I said before, airflow/cooling was improved by myself...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 28, 2012, 09:33:02 PM
Excellent, going to try it on all four of mine now.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 28, 2012, 10:05:07 PM
As I said before, airflow/cooling was improved by myself...

What exactly did you do? 

Even my units with 768 firmware are at 48.6C in a room around 78-80F


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 28, 2012, 10:47:23 PM
Well, 3 of the four were throttling and/or had inconsistent hashrates, so I'm just going to put them all back to 872 for the time being.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 28, 2012, 10:54:21 PM
Don't forget to restart the devices with a power cycle after the firmware flash. I keep forgetting to do so, and no wonder it's getting the same exact speed now as it was before the flash.... doh.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on May 29, 2012, 02:32:29 AM
Don't forget to restart the devices with a power cycle after the firmware flash. I keep forgetting to do so, and no wonder it's getting the same exact speed now as it was before the flash.... doh.
Pity it's not like the ztex ... you simply tell the firmware what speed to run at with a command (while it's running)
In that case you keep increasing it until you get HW: errors and then step it back down.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 29, 2012, 03:43:19 PM
Well shoot, it seems that 880 is the max for mine. Odd thing is that it gives errors without throttling, but cgminer doesn't report them. So cgminer makes things look like all is well, but in fact the device is returning bad results, and HW: remains at zero but share submission rate tanks.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: yjacket on May 29, 2012, 06:35:02 PM
I don't think proper cooling has everything to do with the firmware working. I have plenty of cooling (never goes over 46) and my singles don't like any firmware over 832. They lock or have a sub 800 rate with anything higher than 832.

Anyone else have a similar experience?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 29, 2012, 06:37:46 PM
I don't think proper cooling has everything to do with the firmware working. I have plenty of cooling (never goes over 46) and my singles don't like any firmware over 832. They lock or have a sub 800 rate with anything higher than 832.

Anyone else have a similar experience?
I'd tend to agree. I've seen cgminer report over 70 degrees with no throttling, but it still won't run the fastest firmware. I wonder what could make the discrepancy so large.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 29, 2012, 06:48:39 PM
It's kind of like overclocking a CPU.  You can have a CPU running at 25c, but won't overclock any further than 4 GHz regardless.  It doesn't have to do with temps at that point, just with what the CPU is capable of.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BFL on May 29, 2012, 07:18:42 PM
Yes, you're exactly correct.  These are full wafer yield, so there's a range of variance from chip to chip.

We sell the end product at their lowest common denominator performance which is 832mh/s +/- 10% @ 72f / 22c.  This is why you can go much higher in some cases (up to 1.05 gh/s which might explain our initial speed estimates), but can't be expected on all the units shipped.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on May 29, 2012, 10:08:21 PM
Well shoot, it seems that 880 is the max for mine. Odd thing is that it gives errors without throttling, but cgminer doesn't report them. So cgminer makes things look like all is well, but in fact the device is returning bad results, and HW: remains at zero but share submission rate tanks.
The HW: number is simple - any share returned by any device is checked (it is sha256'd)
If it is invalid, it is a HW: error, if it is valid, it continues down the chain of processing.

Thus a HW: error means the device's sha256 isn't functioning correctly somehow
In GPU terms, it usually means it's OC too hard.
As I mentioned above, with a ztex it means the MHz clock is up too high and needs to be stepped down a bit (that's what the cgminer code does)
But in both cases, the meaning is the same.

On the other hand, if USB device I/O returns an error, then of course that isn't considered a HW: error, since that is a USB issue.
Yes I've seen someone with 6 BFL's have them return USB errors regularly due to some problem with the USB configuration and the OS
But that is exactly that, a USB problem, not a HW: error (since HW: has that specific meaning and in this case the fix is not related to the device failing to sha256 correctly)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 29, 2012, 10:11:09 PM
Is there some other metric that can be shown instead then, so that we can see when a share is invalid or not submitted due to throttle? HW stands for Hardware, as far as I can guess, so maybe you can have TH for throttle, and/or ER for error. I don't know whether they need different commands to detect or what, but EasyMiner shows separate counters for error rates and throttle instances.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on May 29, 2012, 10:16:03 PM
Is there some other metric that can be shown instead then, so that we can see when a share is invalid or not submitted due to throttle? HW stands for Hardware, as far as I can guess, so maybe you can have TH for throttle, and/or ER for error. I don't know whether they need different commands to detect or what, but EasyMiner shows separate counters for error rates and throttle instances.
I've asked BFL for details about throttling and what other commands there are that we don't know about.
Their reply was 'no'
They don't want better cgminer support for the BFL.
Vote with your wallet.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 29, 2012, 11:55:32 PM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Unacceptable on May 30, 2012, 12:29:50 AM
Mine only mines on the 768 firmware.My room is too hot (78 F most of the time) to allow anthing else to work,I think............

But @ 760 mh/s consistantly,no errors even if my room gets to 89 degrees F,I can accept that,for now ;)

I'm waiting to see what the ASIC device does & costs,maybe I'll trade it in one of those  ;D


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: phantitox on May 30, 2012, 12:40:22 AM
this devices from butterfly labs support any pools? im on gpumax and im thinking on buy on of this devices, anyone knows?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 30, 2012, 12:44:41 AM
this devices from butterfly labs support any pools? im on gpumax and im thinking on buy on of this devices, anyone knows?
They support all pools with the exception of P2Pool, using either cgminer/bfgminer or ufasoft's miner. Bitminter software also supports them, but can only be used with their pool.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: phantitox on May 30, 2012, 01:01:38 AM
this devices from butterfly labs support any pools? im on gpumax and im thinking on buy on of this devices, anyone knows?
They support all pools with the exception of P2Pool, using either cgminer/bfgminer or ufasoft's miner. Bitminter software also supports them, but can only be used with their pool.

awesome , thx :D


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: xDGDZEx on May 30, 2012, 02:55:46 AM
Just uploaded the 896mh firmware, and I'm getting almost exactly half (ie ~470) mh. No throttles, just goes up to that and stays there. Any ideas on what would cause this? In cgminer btw.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: lomax on May 30, 2012, 02:57:57 AM
Just uploaded the 896mh firmware, and I'm getting almost exactly half (ie ~470) mh. No throttles, just goes up to that and stays there. Any ideas on what would cause this? In cgminer btw.
Not running two instances of cgminer? Its working fine for me.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: TheOtherGuy on May 30, 2012, 03:21:38 AM
Just uploaded the 896mh firmware, and I'm getting almost exactly half (ie ~470) mh. No throttles, just goes up to that and stays there. Any ideas on what would cause this? In cgminer btw.

What is your U?

I am running BAMT with cgminer 2.3.1f. When I uploaded the 872 firmware the hash rate is showing 433 but the U after 12+ hours is 12.09.

EDIT: When I use the 832 firmware it shows the hash rate about 825 and a U of about 11.4.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: xDGDZEx on May 30, 2012, 03:29:05 AM
Just uploaded the 896mh firmware, and I'm getting almost exactly half (ie ~470) mh. No throttles, just goes up to that and stays there. Any ideas on what would cause this? In cgminer btw.

What is your U?

I am running BAMT with cgminer 2.3.1f. When I uploaded the 872 firmware the hash rate is showing 433 but the U after 12+ hours is 12.09.

Not sure, just fired it up and thought that it was really weird.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Unacceptable on May 30, 2012, 04:13:01 AM
Just uploaded the 896mh firmware, and I'm getting almost exactly half (ie ~470) mh. No throttles, just goes up to that and stays there. Any ideas on what would cause this? In cgminer btw.

Sounds like a throttle,even though it shows none,it probably is.Flash the next lower firmware ;)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: xDGDZEx on May 30, 2012, 04:38:03 AM
That is what I thought. However, my eclipse account states current hash rate is 6.71GH and rising (~838 per unit). So I'm just going to let it run for a while and see what happens.

Edit: Also has not returned any HW errors, so that is a good sign.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Unacceptable on May 30, 2012, 05:21:16 AM
Now that I think back to when I got my unit,everytime CGminer showed half the hashrate (had to shut off CG,only one program can access the unit at a time,I think) I fired up Easyminer & it confirmed throttling.But if your rates on your mining co show full rates,maybe it isn't ??? Very strange...............


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on May 30, 2012, 05:47:35 AM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(
I have had the same result, after flashing with the 792 firmware, units do not work.  Haven't contacted BFL yet, but wanted to confirm your result.

All rev2 singles.

No problems with 768, 800, 808, 816, 824, 832.  Extremely poor performance with 864, 872. Haven't tried 880, 896, since I didn't think there would be any point.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: xDGDZEx on May 30, 2012, 05:52:02 AM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(
I have had the same result, after flashing with the 792 firmware, units do not work.  Haven't contacted BFL yet, but wanted to confirm your result.

All rev2 singles.

No problems with 768, 800, 808, 816, 824, 832.  Extremely poor performance with 864, 872. Haven't tried 880, 896, since I didn't think there would be any point.

None of my singles will run at 880 or 896 in cgminer without downclocking to half speed (6 rev3 and 2 rev2). Despite two of the rev 3's passing medium diagnostic @ 894 in easyminer.

The Rev2's are by far the worst. Couldn't run 832 until I moved them to a cool basement.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on May 30, 2012, 07:01:23 AM
Just uploaded the 896mh firmware, and I'm getting almost exactly half (ie ~470) mh. No throttles, just goes up to that and stays there. Any ideas on what would cause this? In cgminer btw.

What is your U?

I am running BAMT with cgminer 2.3.1f. When I uploaded the 872 firmware the hash rate is showing 433 but the U after 12+ hours is 12.09.

Not sure, just fired it up and thought that it was really weird.
Yes, a long term U value is way more reliable to determine if it is hashing at a given rate
(for FPGA in older versions of cgminer)

Even a short term (a few minutes) U will pretty much always be within 50% and given maybe an hour it should usually be within 10%
Anyone with a bit of stats knowledge should be able to come up with the actual % values/SD over time - but my figures are based on observation (and yes I have seem some very unexpected U values)

Earlier versions of the cgminer BFL (and Icarus) code had some issues displaying the correct MH/s
That may be exacerbated by the faster firmware
That 2.3.1f version is obviously from me (any versions floating around with extra letters on the end are usually from my git)
Though I've had pretty much nothing to do with the BFL code in releases (just testing with people)
I've spent most of my FPGA code effort on Icarus (ngzhang is great with technical details)
- though some of those Icarus changes may rub off on the BFL code eventually.
Though the next major FPGA change, if I get around to it (or someone else does it) will affect both of them.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 30, 2012, 10:51:02 AM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(
I have had the same result, after flashing with the 792 firmware, units do not work.  Haven't contacted BFL yet, but wanted to confirm your result.

All rev2 singles.

No problems with 768, 800, 808, 816, 824, 832.  Extremely poor performance with 864, 872. Haven't tried 880, 896, since I didn't think there would be any point.

@BFL-Engineer - see above.  The 792 f/w needs to be re-examined.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BFL-Engineer on May 30, 2012, 10:54:20 AM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(
I have had the same result, after flashing with the 792 firmware, units do not work.  Haven't contacted BFL yet, but wanted to confirm your result.

All rev2 singles.

No problems with 768, 800, 808, 816, 824, 832.  Extremely poor performance with 864, 872. Haven't tried 880, 896, since I didn't think there would be any point.

@BFL-Engineer - see above.  The 792 f/w needs to be re-examined.

Will investigate.


Regards,
BF Labs Inc.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on May 30, 2012, 10:59:07 AM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(
I have had the same result, after flashing with the 792 firmware, units do not work.  Haven't contacted BFL yet, but wanted to confirm your result.

All rev2 singles.

No problems with 768, 800, 808, 816, 824, 832.  Extremely poor performance with 864, 872. Haven't tried 880, 896, since I didn't think there would be any point.

@BFL-Engineer - see above.  The 792 f/w needs to be re-examined.

Will investigate.


Regards,
BF Labs Inc.

Yes I can also confirm that the 792 is not working.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 30, 2012, 01:01:25 PM
I might note that when I tried the fastest version on my unit, cgminer showed half speed, the U tanked, and the share submission rate was like 1 or 2 per minute, but no errors showed. Apparently this is because the API command to discover the error rate is not known and so can't be shown in cgminer. If you use EasyMiner to run a diagnostic, you will probably find that it is giving errors, even if it isn't actually throttling.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: jamesg on May 30, 2012, 01:09:13 PM
So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: bulanula on May 30, 2012, 01:20:39 PM
So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV

Thanks for letting us know.

Is there any point releasing higher speed firmwares ?

What is the theoretical maximum for these chips that can be used if you had subzero cooling for example ?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: pieppiep on May 30, 2012, 01:28:59 PM
Probably only BFL knows.
They made the design and compiled it to a bitfile, so they know the timing constraints.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 30, 2012, 01:29:48 PM
My guess is that there may be a compilation error with some specific files, or that the speed just happens to tickle a bug in the hardware.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 30, 2012, 04:13:54 PM
So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV
+1 for that.  It worked on 1/4, though I only ran it for a short while.

So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV

Thanks for letting us know.

Is there any point releasing higher speed firmwares ?

What is the theoretical maximum for these chips that can be used if you had subzero cooling for example ?
BFL seemed to indicate that they ran chips up to 1.05 GH/s.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: e21 on May 30, 2012, 05:26:58 PM
Only have 1 single, but I was able to get the 880 MH/s firmware to run fine at a fairly high ambient temperature (~72-80*F in California), ran the diagnostics for about an hour, got 0 errors or throttles. (I was able to get the 872 MH/s firmware to run fine as well)

Tried the 892 MH/s firmware and I started getting errors but 0 throttles (using EasyMiner diagnostics, cgminer reports 0 HW). I noticed the errors didn't start until the single started to heat up, first 65 or so shares processed returned 0 errors, then when the reported temperature reached it's peak at about 48*C, (0 thottles still) I started getting about 1 error per 5 shares processed.. Seems to me like a component on the board besides the two chips is getting too hot and causing issues maybe? Going to try looking for hot spots with an infrared thermometer and applying stick-on RAM heatinks and see if that helps.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on May 30, 2012, 09:38:02 PM
So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV
+1 for that.  It worked on 1/4, though I only ran it for a short while.

So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV

Thanks for letting us know.

Is there any point releasing higher speed firmwares ?

What is the theoretical maximum for these chips that can be used if you had subzero cooling for example ?
BFL seemed to indicate that they ran chips up to 1.05 GH/s.
They ran a simulation that said they could get 1.05 GH/s


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 30, 2012, 10:43:00 PM
So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV
+1 for that.  It worked on 1/4, though I only ran it for a short while.

So I have tried the 896 firmware on every single I have upgraded so far and it has only worked on one. 864 seems to be the sweet spot for my singles. YMMV

Thanks for letting us know.

Is there any point releasing higher speed firmwares ?

What is the theoretical maximum for these chips that can be used if you had subzero cooling for example ?
BFL seemed to indicate that they ran chips up to 1.05 GH/s.
They ran a simulation that said they could get 1.05 GH/s
Ahhh, much different from actually running a chip that fast!  Especially given the results of real-world testing of the 896 firmware, I doubt that we'll see anything much faster - 896 seems to be beyond the limit for most chips already.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Inspector 2211 on May 30, 2012, 10:47:09 PM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 30, 2012, 10:54:32 PM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.

Huh?  It was beyond the limit for 3 of mine already.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Inspector 2211 on May 30, 2012, 10:58:05 PM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.

Huh?  It was beyond the limit for 3 of mine already.

I was just trying to point out that the 896 MH/s are spread out over TWO FPGAs, not just one.
Maybe you meant to say "beyond the limit for most Singles".


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 30, 2012, 11:12:52 PM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.

Huh?  It was beyond the limit for 3 of mine already.

I was just trying to point out that the 896 MH/s are spread out over TWO FPGAs, not just one.
Maybe you meant to say "beyond the limit for most Singles".
Ahhh, yes indeed.  Beyond the limit for most Singles.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Beaflag VonRathburg on May 31, 2012, 03:29:18 AM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.

Huh?  It was beyond the limit for 3 of mine already.

I was just trying to point out that the 896 MH/s are spread out over TWO FPGAs, not just one.
Maybe you meant to say "beyond the limit for most Singles".

Is it the limit of the chips, hardware to keep it cool, outside temperature or some combination of the previously mentioned?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Inspector 2211 on May 31, 2012, 03:40:37 AM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.

Huh?  It was beyond the limit for 3 of mine already.

I was just trying to point out that the 896 MH/s are spread out over TWO FPGAs, not just one.
Maybe you meant to say "beyond the limit for most Singles".

Is it the limit of the chips, hardware to keep it cool, outside temperature or some combination of the previously mentioned?

Hard to say, probably a combination of things.
Does anyone have a walk-in freezer where he could test whether freezing temperatures help?

In any case, there is a thermal resistance Tr1 from the die to the heat spreader and a thermal resistance Tr2 from the heat spreader to the heat sink and finally there is a thermal resistance Tr3 from the heat sink to the room air.
Tr1 cannot be modified, but we have already established that Tr2 is not at its optimal level, because the heat sink does not contact the whole heat spreader, only part of it. Also, I suspect that co-planarity of the FPGAs, or rather the lack of it, may contribute to a higher-than-desired Tr2 value.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: lomax on May 31, 2012, 05:22:35 AM
Sailing along at 892MH/s here, with no increase in temps.

Waiting for the next firmware BFL, keep pushing the limits I say.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTCurious on May 31, 2012, 09:41:02 AM
Hard to say, probably a combination of things.
Does anyone have a walk-in freezer where he could test whether freezing temperatures help?
Someone with throttling issues put his BFL in a cooling chamber and ran it at 0C, and still had throttling issues.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Scared on May 31, 2012, 03:34:32 PM
So I took one of my singles and have it running at 50c. I updated the firmware to 896 and confirmed with Easyminer that it ran without any hardware errors. It ran with an Avg Speed of 897. I then ran it with cgminer for the same amount of time that Easyminer ran and got 876.9. I repeated this three separate times and got the same results. Why am I getting such a significant difference between cgminer and Easyminer? I understand from previous posts that cgminer doesn't report the hardware errors but Easyminer has shown 0 HW errors every time I've run it. 

Any suggestions?

http://i1250.photobucket.com/albums/hh528/gbachrach/BFLSingle.png


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BFL-Engineer on May 31, 2012, 03:42:43 PM
So I took one of my singles and have it running at 50c. I updated the firmware to 896 and confirmed with Easyminer that it ran without any hardware errors. It ran with an Avg Speed of 897. I then ran it with cgminer for the same amount of time that Easyminer ran and got 876.9. I repeated this three separate times and got the same results. Why am I getting such a significant difference between cgminer and Easyminer? I understand from previous posts that cgminer doesn't report the hardware errors but Easyminer has shown 0 HW errors every time I've run it. 

Any suggestions?

http://i1250.photobucket.com/albums/hh528/gbachrach/BFLSingle.png

The speed reported by Easyminer indicates how fast the unit can process 4Billion range of nonces. The speed
reported by cgminer includes network latency, jobs that have no nonce result, LongPoll cancellation of all jobs
in queue, etc... All of these affect your productivity in terms of MH/s.


Regards,
BF Labs Inc.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on May 31, 2012, 04:07:46 PM
Any updates regarding faster firmwares (>896)?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: e21 on May 31, 2012, 04:40:21 PM
So I took one of my singles and have it running at 50c. I updated the firmware to 896 and confirmed with Easyminer that it ran without any hardware errors. It ran with an Avg Speed of 897. I then ran it with cgminer for the same amount of time that Easyminer ran and got 876.9. I repeated this three separate times and got the same results. Why am I getting such a significant difference between cgminer and Easyminer? I understand from previous posts that cgminer doesn't report the hardware errors but Easyminer has shown 0 HW errors every time I've run it. 

Any suggestions?



The speed reported by Easyminer indicates how fast the unit can process 4Billion range of nonces. The speed
reported by cgminer includes network latency, jobs that have no nonce result, LongPoll cancellation of all jobs
in queue, etc... All of these affect your productivity in terms of MH/s.


Regards,
BF Labs Inc.

Yes, I had my single running the 872 MH/s firmware, which averaged out to about 855 MH/s in cgminer, then I updated to 892 MH/s, which then averaged out to about 876 MHs for me as well. The "U" also increased by about .3, from 10.8 to 11.1


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 31, 2012, 05:18:46 PM
A "U" of 11.1 with the 892 FW is low...

This is a 864 FW - running for 3 hours

Code:
BFL 5:  42.8C         | 859.0/852.0Mh/s | A:2202 R:0 HW:0 U: 12.10/m

And this is the lowest U of 3 units at 816 FW (other two are 11.35 and 11.60)

Code:
BFL 1:  44.7C         | 810.0/803.3Mh/s | A:1972 R:0 HW:0 U: 10.73/m


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on May 31, 2012, 05:29:10 PM
I've been getting a U of 12.2 to 12.3 with the 880 firmware. Go GPUMAX.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on May 31, 2012, 05:36:57 PM
Amen to that brother - go GPUMAX  ;D


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Beaflag VonRathburg on May 31, 2012, 06:13:57 PM
896 seems to be beyond the limit for most chips already.

TWO chips.
Quite likely, with TWO completely unrolled, pipelined miners on each of them.
Or a "sea of miners" on them, as brilliantly demonstrated by Bitfury on the Spartan6 platform.

Huh?  It was beyond the limit for 3 of mine already.

I was just trying to point out that the 896 MH/s are spread out over TWO FPGAs, not just one.
Maybe you meant to say "beyond the limit for most Singles".

Is it the limit of the chips, hardware to keep it cool, outside temperature or some combination of the previously mentioned?

Hard to say, probably a combination of things.
Does anyone have a walk-in freezer where he could test whether freezing temperatures help?

In any case, there is a thermal resistance Tr1 from the die to the heat spreader and a thermal resistance Tr2 from the heat spreader to the heat sink and finally there is a thermal resistance Tr3 from the heat sink to the room air.
Tr1 cannot be modified, but we have already established that Tr2 is not at its optimal level, because the heat sink does not contact the whole heat spreader, only part of it. Also, I suspect that co-planarity of the FPGAs, or rather the lack of it, may contribute to a higher-than-desired Tr2 value.

I live in Florida and honestly today is the first day that I consider to be a true indicator of summer approaching. I came down around 10am and my garage was 97.2* F. My house has no AC so I plan on sticking my singles in an extra mini fridge that I have and sealing it up the best I can. Hopefully, it will be able to keep them from throttling and shouldn't consume too much extra electricity.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 31, 2012, 06:47:14 PM
I live in Florida and honestly today is the first day that I consider to be a true indicator of summer approaching. I came down around 10am and my garage was 97.2* F. My house has no AC so I plan on sticking my singles in an extra mini fridge that I have and sealing it up the best I can. Hopefully, it will be able to keep them from throttling and shouldn't consume too much extra electricity.

I think you're going to end up with a very warm mini-fridge and a burnt out motor.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: crazyates on May 31, 2012, 07:46:37 PM
I live in Florida and honestly today is the first day that I consider to be a true indicator of summer approaching. I came down around 10am and my garage was 97.2* F. My house has no AC so I plan on sticking my singles in an extra mini fridge that I have and sealing it up the best I can. Hopefully, it will be able to keep them from throttling and shouldn't consume too much extra electricity.

I think you're going to end up with a very warm mini-fridge and a burnt out motor.

And a jacked up electric bill.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: P_Shep on May 31, 2012, 07:49:57 PM

I think you're going to end up with a very warm mini-fridge and a burnt out motor.

And a jacked up electric bill.

And an even WARMER garage.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on May 31, 2012, 08:12:22 PM

I think you're going to end up with a very warm mini-fridge and a burnt out motor.

And a jacked up electric bill.

And an even WARMER garage.
And condensation-killed Singles.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: crazyates on May 31, 2012, 08:20:07 PM

I think you're going to end up with a very warm mini-fridge and a burnt out motor.

And a jacked up electric bill.

And an even WARMER garage.
And condensation-killed Singles.
And warts on his...actually, never mind. Lets just leave the poor dude alone...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: WhitePhantom on May 31, 2012, 08:35:41 PM

I think you're going to end up with a very warm mini-fridge and a burnt out motor.

And a jacked up electric bill.

And an even WARMER garage.
And condensation-killed Singles.
And warts on his...actually, never mind. Lets just leave the poor dude alone...

All the responses made me laugh.  However, I agree.  A mini fridge may be good at cooling food/beverages and keeping them cool, but it's not designed to cool items that continuously produce heat.  I'd even be slightly nervous about putting the Single in a large chest-style freezer, although that might actually pan out...Never tried such a thing.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: cuz0882 on June 03, 2012, 01:43:42 AM
I prefer to keep mine on ice in the cooler. In a pinch I can settle for a mini fridge.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: dave3 on June 03, 2012, 02:58:51 AM
I've got the 800 mh/s firmware loaded on my 2 new Singles with the stock power bricks, and the total power use according to my power meter is 145 watts (or about 72.5 watts each).

So it looks like the slower firmware uses a bit less power.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on June 03, 2012, 03:01:18 AM
I've got the 800 mh/s firmware loaded on my 2 new Singles with the stock power bricks, and the total power use according to my power meter is 145 watts (or about 72.5 watts each).

So it looks like the slower firmware uses a bit less power.

That's expected, same as a video card. Generally speaking, the power draw versus clock speed is linear.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: crazyates on June 03, 2012, 03:03:36 AM
I've got the 800 mh/s firmware loaded on my 2 new Singles with the stock power bricks, and the total power use according to my power meter is 145 watts (or about 72.5 watts each).

So it looks like the slower firmware uses a bit less power.

That's expected, same as a video card. Generally speaking, the power draw versus clock speed is linear.

In that case, are the faster bitstreams more likely to burn out the power bricks faster? More heat?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on June 03, 2012, 03:18:10 AM
I've got the 800 mh/s firmware loaded on my 2 new Singles with the stock power bricks, and the total power use according to my power meter is 145 watts (or about 72.5 watts each).

So it looks like the slower firmware uses a bit less power.

That's expected, same as a video card. Generally speaking, the power draw versus clock speed is linear.

In that case, are the faster bitstreams more likely to burn out the power bricks faster? More heat?
Hard to say, the bricks are rated for something like 120 watts, but they do get a bit hot. Usually for more than 2 or 3 singles, it's a good idea to use a standard power supply with converted connectors.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: SgtSpike on June 03, 2012, 05:36:13 AM
I've got the 800 mh/s firmware loaded on my 2 new Singles with the stock power bricks, and the total power use according to my power meter is 145 watts (or about 72.5 watts each).

So it looks like the slower firmware uses a bit less power.

That's expected, same as a video card. Generally speaking, the power draw versus clock speed is linear.

In that case, are the faster bitstreams more likely to burn out the power bricks faster? More heat?
I have a 6" wally-world fan blowing on all 4 of my singles + power bricks.  It's kept them nicely cool, but they were getting super hot before I made that change.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on June 03, 2012, 06:09:46 PM
Just a note - cannot seem to get the 792 firmware to work.  Has anyone else reported issues?

After flashing, it says it is OK but under No processors where it should say [ 2 ]  it shows [ 0 ].

Tried this on 2 singles and have re-downloaded the file - same result.

Would be nice to have this as 2 units won't run 800 reliably and having to drop to 768, well, is no fun  :(
I have had the same result, after flashing with the 792 firmware, units do not work.  Haven't contacted BFL yet, but wanted to confirm your result.

All rev2 singles.

No problems with 768, 800, 808, 816, 824, 832.  Extremely poor performance with 864, 872. Haven't tried 880, 896, since I didn't think there would be any point.

@BFL-Engineer - see above.  The 792 f/w needs to be re-examined.

Will investigate.

Regards,
BF Labs Inc.
Yes I can also confirm that the 792 is not working.

@BFL-Engineer: any word on a fix for the 792 firmware? I can also confirm that it is not working for me.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on June 04, 2012, 03:33:48 AM
Give it 4-6 weeks :)

OK that is a troll comment but ... I made it coz ...

I discussed with luke-jr about adding a simple change to cgminer to reduce the stale share count (when you use --no-submit-stale) by 0.425% i.e. an extra 3.5MH/s on a 832MH/s core hashing at 816MH/s
(he still has veto over what goes in)
and his reply was that he wouldn't do it coz it wasn't possible without messing up his code and he was awaiting the updated details about the BFL commands and that would resolve it ... apparently soon.
i.e. this relates to what I have already asked for from BFL 3 weeks ago and they said no.
So ... I also wonder how long that will be ...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on June 04, 2012, 10:10:52 AM
@BFL-Engineer - see above.  The 792 f/w needs to be re-examined.

Will investigate.

Regards,
BF Labs Inc.

@BFL:
 1. Any update regarding the 792 firmware issue?
 2. Any update regarding faster firmware versions? It's now ~1 week after the announcement here https://bitcointalk.org/index.php?topic=84174.msg928022#msg928022

If the generating process of a new firmware is a very time consuming process, it would help us all to communicate it this way to us and give us raw release dates.
Up to now, I understood BFL like the difference in the firmwares is trivial and you already have faster firmwares (at least up to 1050) but it's getting more and more unlikely that they will run with a specific customer unit. However, I've waited ~3 month for my singles (with full prepayment) and if there is faster firmware I would like to have it asap to run it now.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: lorenzfx on June 08, 2012, 02:01:57 PM
Hi,
is it generally possibly to write and run my own firmware on the bitforce single?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: rjk on June 08, 2012, 02:03:48 PM
Hi,
is it generally possibly to write and run my own firmware on the bitforce single?
Nope.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on June 08, 2012, 03:26:24 PM
Hi,
is it generally possibly to write and run my own firmware on the bitforce single?
Nope.

Well, I would not say that it's generally not possible.
BFL has not publicly documented the design and has at this point in time no interest that clients running not BFL released logic on the singles.
However it's a FPGA based product. How to use the JTAG connectors in the single is already  known. If you want to use the microcontroller or usb also you have to do some reverse engineering.

Other products are open source or have at least a good documentation (schematic etc.) to use it for other tasks also.
I don't understand why BFL keeps so many information as a secrete and doesn't use the power of the community to improve the products. BFL's main advantage is the good  source for the FPGA's.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: lomax on June 21, 2012, 01:26:30 AM
Its been a couple of week since BFL teased us with word of faster firmware, appreciate you may have been busy but any word?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: BTC-engineer on June 21, 2012, 06:04:11 PM
Its been a couple of week since BFL teased us with word of faster firmware, appreciate you may have been busy but any word?

I'm getting more and more disappointed about the support of products I've bought from them.
After a very long delivery time with up-front payment, I've now singles here which are looking like they can run at higher speed. BFL stated, last on May 29, that they have faster firmwares and will release them in a short while. I know that there is no guarantee that the faster firmware will run on every unit or even most of them. All the weeks no further information...

Releasing the firmwares sometime in the up-coming ASIC era , is then probably not necessary anymore...  :(

Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on June 21, 2012, 06:37:50 PM


Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.

That would be me...  ::)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: crazyates on June 21, 2012, 06:40:55 PM
I think they've been a little busy lately...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on June 21, 2012, 06:47:45 PM
I'm getting more and more disappointed about the support of products I've bought from them.
After a very long delivery time with up-front payment, I've now singles here which are looking like they can run at higher speed. BFL stated, last on May 29, that they have faster firmwares and will release them in a short while. I know that there is no guarantee that the faster firmware will run on every unit or even most of them. All the weeks no further information...

Releasing the firmwares sometime in the up-coming ASIC era , is then probably not necessary anymore...  :(

Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.
I understand the frustration, but I bought these based on BFL's final published specs: 832Mhps +/-10%. I went in with eyes open, as did everyone else who ordered, and that is exactly what BFL has delivered. There is no justifiable reason to be disappointed that some magic 900Mhps+ firmware hasn't surfaced yet.

The release of multiple speed grades of firmware should be considered a 'bonus' to customers, not an 'entitlement'.

FWIW I'm running many of my units with 768 and 800 firmware. That's still well within the +/-10% spec, BTW. I've swapped the stock fans for low-speed ultra-quiet units. In exchange for a slight reduction in hashrate, I've gained something much more valuable to me: silence! And the ability to operate reliably in 85F+ ambient temperatures. Without the release of that 'slow' firmware, I wouldn't have been able to do this.

I can understand that others in a cool environment, for whom silence is of no concern, would want to run the fastest firmware possible. But guess what: the only 'guarantee' is that a Single will do 832Mhps +/-10%. We bought it knowing that full well. No one has any right to complain that BFL is not releasing XXX firmware ... rather we should be glad when they choose to release anything at all, since BFL is under no obligation to do so. And we all knew that going in.

But towards the end of this year when ASICS begin to enter the network, this discussion will be moot since a hashrate of 800 or 900 or 1000 megahashes/second will all be equally useless. And in light of that, we are all in the same boat.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: cuz0882 on June 23, 2012, 01:55:02 AM
Ok, I'm ready to take this to the next level. I'm running 38c on 896.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: bulanula on June 24, 2012, 12:09:19 PM
Ok, I'm ready to take this to the next level. I'm running 38c on 896.

Please share how.

Did you put them into the fridge or something ???


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on June 24, 2012, 12:55:23 PM
I'm getting more and more disappointed about the support of products I've bought from them.
After a very long delivery time with up-front payment, I've now singles here which are looking like they can run at higher speed. BFL stated, last on May 29, that they have faster firmwares and will release them in a short while. I know that there is no guarantee that the faster firmware will run on every unit or even most of them. All the weeks no further information...

Releasing the firmwares sometime in the up-coming ASIC era , is then probably not necessary anymore...  :(

Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.
I understand the frustration, but I bought these based on BFL's final published specs: 832Mhps +/-10%. I went in with eyes open, as did everyone else who ordered, and that is exactly what BFL has delivered. There is no justifiable reason to be disappointed that some magic 900Mhps+ firmware hasn't surfaced yet.

The release of multiple speed grades of firmware should be considered a 'bonus' to customers, not an 'entitlement'.
...
Actually, it's a restriction.
The devices are unchangeable and clearly there is not much effort required by them to make a higher clock speed bitstream.

Yet people like cuz0882 are now left stranded since it appears that BFL really doesn't have the time nor interest to generate faster bitstreams - and this is for a device that they still are unable to ship on time due to backlog of orders (apparently)

If they said: "Here, here's the bitstream source and upload specs, now go ahead and make your own faster clock bitstream", then yes there would be no complaint if they didn't support the device anymore ... as they are giving the impression at the moment ...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: ice_chill on June 24, 2012, 05:18:44 PM
There is no point releasing any faster Bitstream if during testing they see that only 10% of chips are capable of it. If you can run 896 firmware then you are already lucky.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: cuz0882 on June 24, 2012, 08:22:45 PM
Ok, I'm ready to take this to the next level. I'm running 38c on 896.

Please share how.

Did you put them into the fridge or something ???

I replaced the paste and screws on the heatsink. Then put a delta fan on, which seems to make a huge difference. I'm using a fan controller on it.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835213009


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Cablez on June 24, 2012, 09:20:11 PM
Are you running that right off the PCB header?  At 1.04A I guess that's not too much of a load.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on July 11, 2012, 04:00:17 AM


Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.

That would be me...  ::)
The 768 MH bitstream works, but not without problems. as seen in the screen shots below.  
http://s6.postimage.org/ymkudb4st/Butterfly_Labs_Easyminer_768_MH_bitstream_2012.jpg768 MH bitstream (http://postimage.org/image/ymkudb4st/)
http://s6.postimage.org/xlklo6nt9/Butterfly_Labs_Easyminer_800_MH_bitstream_2012.jpg800 MH bitstream (http://postimage.org/image/xlklo6nt9/)

Definitely the 792 MH bitstream is broken, but something is likely amiss with the 768 MH bitstream also, just not sure how serious the problem may be.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Keefe on July 11, 2012, 04:28:59 AM


Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.

That would be me...  ::)
The 768 MH bitstream works, but not without problems. as seen in the screen shots below. 
http://s6.postimage.org/ymkudb4st/Butterfly_Labs_Easyminer_768_MH_bitstream_2012.jpg768 MH bitstream (http://postimage.org/image/ymkudb4st/)
http://s6.postimage.org/xlklo6nt9/Butterfly_Labs_Easyminer_800_MH_bitstream_2012.jpg800 MH bitstream (http://postimage.org/image/xlklo6nt9/)

Definately the 792 MH bitstream is broken, but something is likely amiss with the 768 MH bitstream also, just not sure how serious the problem may be.


+1

Same here.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on July 11, 2012, 11:51:06 AM


Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.

That would be me...  ::)
The 768 MH bitstream works, but not without problems. as seen in the screen shots below.  
http://s6.postimage.org/ymkudb4st/Butterfly_Labs_Easyminer_768_MH_bitstream_2012.jpg768 MH bitstream (http://postimage.org/image/ymkudb4st/)
http://s6.postimage.org/xlklo6nt9/Butterfly_Labs_Easyminer_800_MH_bitstream_2012.jpg800 MH bitstream (http://postimage.org/image/xlklo6nt9/)

Definitely the 792 MH bitstream is broken, but something is likely amiss with the 768 MH bitstream also, just not sure how serious the problem may be.


I am running 768 on 1 unit without any problems - been running for about 4 weeks now...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on July 11, 2012, 12:46:29 PM


Luckily I'm not one of the customers who need slower firmwares like the 792, which is still broken.

That would be me...  ::)
The 768 MH bitstream works, but not without problems. as seen in the screen shots below.  
http://s6.postimage.org/ymkudb4st/Butterfly_Labs_Easyminer_768_MH_bitstream_2012.jpg768 MH bitstream (http://postimage.org/image/ymkudb4st/)
http://s6.postimage.org/xlklo6nt9/Butterfly_Labs_Easyminer_800_MH_bitstream_2012.jpg800 MH bitstream (http://postimage.org/image/xlklo6nt9/)

Definitely the 792 MH bitstream is broken, but something is likely amiss with the 768 MH bitstream also, just not sure how serious the problem may be.


I am running 768 on 1 unit without any problems - been running for about 4 weeks now...
Easyminer reports the singles as being NOT reliable when running the 768 bitstream. Even though you can mine on a unit deemed unreliable by easyminer, is this a good idea? I don't know. Possibly the only drawback is increased invalids, not sure though.  Contrast with the result by easyminer for the 800 bitstream, no errors, unit reliable.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: JWU42 on July 11, 2012, 02:40:36 PM
Fred0,

Easyminer didn't give me error reports like you are getting.  That said, I will hook it back up to Windows rig tonight and test again...


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on August 31, 2012, 02:59:54 AM
filenamefilesizefiletype
alphaminer_768.bfl7,112,003application/octet-stream
alphaminer_792.bfl5,926,664text/plain
alphaminer_800.bf7,112,003application/octet-stream
alphaminer_808.bfl7,112,003application/octet-stream
alphaminer_816.bfl7,112,003application/octet-stream
alphaminer_824.bfl7,112,003application/octet-stream
alphaminer_832.bfl7,112,003application/octet-stream
alphaminer_864.bfl7,112,003application/octet-stream


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: HDSolar on August 31, 2012, 05:03:44 AM
Ok, I'm ready to take this to the next level. I'm running 38c on 896.

Please share how.

Did you put them into the fridge or something ???

I replaced the paste and screws on the heatsink. Then put a delta fan on, which seems to make a huge difference. I'm using a fan controller on it.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835213009

Ok, so something does not make sense to me, I get the paste and the delta fan but I really do see how that can get you to 38c on the devices or device.  Are you sure this is not another part of your formula you are leaving out.  I had some of my best singles with no case covers next to an AC unit and really could not get below 42c at 896.  I did not redo the paste or the different fan but still I think you would need one more item to your list to get to that level of cool.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on August 31, 2012, 05:57:53 AM
filenamefilesizefiletype
alphaminer_768.bfl7,112,003application/octet-stream
alphaminer_792.bfl5,926,664text/plain
alphaminer_800.bf7,112,003application/octet-stream
alphaminer_808.bfl7,112,003application/octet-stream
alphaminer_816.bfl7,112,003application/octet-stream
alphaminer_824.bfl7,112,003application/octet-stream
alphaminer_832.bfl7,112,003application/octet-stream
alphaminer_864.bfl7,112,003application/octet-stream

Heh - damn shame about that hey.
That's what they have on the web site right now also.

I guess BFL just don't give a shit - coz it was OK back in May, and those who have made comment about it since then have been ignored.

It was OK when I originally download the 792:
alphaminer_792.bfl 7112003 sha256sum: 5fced0f00338d6aa513719fc2e6e67e765bdbb832c0c5c8f9a44dded30004f7b

I tested that not long ago and found mine worked fine - before I switched back to 880.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on August 31, 2012, 06:32:14 AM
filenamefilesizefiletype
alphaminer_768.bfl7,112,003application/octet-stream
alphaminer_792.bfl5,926,664text/plain
alphaminer_800.bf7,112,003application/octet-stream
alphaminer_808.bfl7,112,003application/octet-stream
alphaminer_816.bfl7,112,003application/octet-stream
alphaminer_824.bfl7,112,003application/octet-stream
alphaminer_832.bfl7,112,003application/octet-stream
alphaminer_864.bfl7,112,003application/octet-stream

Heh - damn shame about that hey.
That's what they have on the web site right now also.

I guess BFL just don't give a shit - coz it was OK back in May, and those who have made comment about it since then have been ignored.

It was OK when I originally download the 792:
alphaminer_792.bfl 7112003 sha256sum: 5fced0f00338d6aa513719fc2e6e67e765bdbb832c0c5c8f9a44dded30004f7b

I tested that not long ago and found mine worked fine - before I switched back to 880.
Went the whole summer at 768.  It's not like they didn't know.  I know that I am not alone. Really, how long does it take to put the correct version on the web site. I am seriously not impressed.  Underwhelming.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kjlimo on August 31, 2012, 07:00:43 AM
filenamefilesizefiletype
alphaminer_768.bfl7,112,003application/octet-stream
alphaminer_792.bfl5,926,664text/plain
alphaminer_800.bf7,112,003application/octet-stream
alphaminer_808.bfl7,112,003application/octet-stream
alphaminer_816.bfl7,112,003application/octet-stream
alphaminer_824.bfl7,112,003application/octet-stream
alphaminer_832.bfl7,112,003application/octet-stream
alphaminer_864.bfl7,112,003application/octet-stream

Heh - damn shame about that hey.
That's what they have on the web site right now also.

I guess BFL just don't give a shit - coz it was OK back in May, and those who have made comment about it since then have been ignored.

It was OK when I originally download the 792:
alphaminer_792.bfl 7112003 sha256sum: 5fced0f00338d6aa513719fc2e6e67e765bdbb832c0c5c8f9a44dded30004f7b

I tested that not long ago and found mine worked fine - before I switched back to 880.
Went the whole summer at 768.  It's not like they didn't know.  I know that I am not alone. Really, how long does it take to put the correct version on the web site. I am seriously not impressed.  Underwhelming.

Same here; I'm not too worried... we'll all be mining with ASIC soon anyway :)

We'll worry about such tweaks at that time.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: kano on August 31, 2012, 02:57:56 PM
filenamefilesizefiletype
alphaminer_768.bfl7,112,003application/octet-stream
alphaminer_792.bfl5,926,664text/plain
alphaminer_800.bf7,112,003application/octet-stream
alphaminer_808.bfl7,112,003application/octet-stream
alphaminer_816.bfl7,112,003application/octet-stream
alphaminer_824.bfl7,112,003application/octet-stream
alphaminer_832.bfl7,112,003application/octet-stream
alphaminer_864.bfl7,112,003application/octet-stream

Heh - damn shame about that hey.
That's what they have on the web site right now also.

I guess BFL just don't give a shit - coz it was OK back in May, and those who have made comment about it since then have been ignored.

It was OK when I originally download the 792:
alphaminer_792.bfl 7112003 sha256sum: 5fced0f00338d6aa513719fc2e6e67e765bdbb832c0c5c8f9a44dded30004f7b

I tested that not long ago and found mine worked fine - before I switched back to 880.
Went the whole summer at 768.  It's not like they didn't know.  I know that I am not alone. Really, how long does it take to put the correct version on the web site. I am seriously not impressed.  Underwhelming.
If you want I can put my 792 up somewhere for you to download.
Just PM me if you want and I'll give you a link.

And yes I actually find me offering to do that hysterical - me who hates BFL and they hate me too - but yeah I'll put up the download for you if you want anyway - no trouble for me and I've already got it ready to grab :)

Edit: and in case you only have md5sum:
alphaminer_792.bfl md5sum f2de07892a2b71c4cc377975c02234f0


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: LazyOtto on August 31, 2012, 03:28:55 PM
fred0, even after you get a binary for 792, be prepared for it to be flakey.

It didn't work well for me, and there have been other reports of problems also.

Fortunately for me, with my device and in my ambient temp, 800 works fine.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on August 31, 2012, 03:50:36 PM
fred0, even after you get a binary for 792, be prepared for it to be flakey.

It didn't work well for me, and there have been other reports of problems also.

Fortunately for me, with my device and in my ambient temp, 800 works fine.

Well, the 768 is flakey too.  Also, at current ambient temps, I was able to bump up to 800 without a problem. August was significantly cooler than July.  But I still have one unit that when it hits 78 degrees throttles on the 800 MH firmware. Likely 792 would be the right version, but it's not available. [annoyed]

In any case, BFL-Engineer said that he would look into the problem 30 May
https://bitcointalk.org/index.php?topic=80497.msg930143#msg930143 .  

It really only takes minutesseconds to see the corrupted file. So, what is the problem? It's not like this subject hasn't come up. [more annoyed]


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: LazyOtto on August 31, 2012, 03:59:02 PM
fred0, I have been mis-quoted here.

Could you fix that, please?

edit: fixed. Thank you.

--

"So, what is the problem?"

To understate it, neither accurate statements nor customer service is BFL's strong suite.

Perhaps you should expect a resolution in 'four to six weeks'.  ;)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on August 31, 2012, 04:05:50 PM
fred0, I have been mis-quoted here.

Could you fix that, please?

--

"So, what is the problem?"

To understate it, neither accurate statements nor customer service is BFL's strong suite.

Perhaps you should expect a resolution in 'four to six weeks'.  ;)
Weird, I previewed it, and it looked good..fixed, I think..


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: fred0 on August 31, 2012, 04:14:44 PM
fred0, even after you get a binary for 792, be prepared for it to be flakey.

It didn't work well for me, and there have been other reports of problems also.

Fortunately for me, with my device and in my ambient temp, 800 works fine.
Already off the 792 bitstream.  It is too flakey, back to 768. At least 768 is usable.  BFL should just delete the firmware entry for the 792.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on May 17, 2013, 05:19:40 PM
Out of curiosity, is there some information on what ambient temperature is "good" for a Single? Seeing it's so temperature sensitive.

At which temp does it start to break down?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on May 17, 2013, 06:15:55 PM
Out of curiosity, is there some information on what ambient temperature is "good" for a Single? Seeing it's so temperature sensitive.

At which temp does it start to break down?
FPGA Singles are designed to work without throttling using the stock 832Mhps firmware and stock fan(s), case on, up to 75F ambient. Beyond that, they each have their own unique 'personality'.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on May 17, 2013, 06:24:37 PM
Out of curiosity, is there some information on what ambient temperature is "good" for a Single? Seeing it's so temperature sensitive.

At which temp does it start to break down?
FPGA Singles are designed to work without throttling using the stock 832Mhps firmware and stock fan(s), case on, up to 75F ambient. Beyond that, they each have their own unique 'personality'.

23-ish C, that's reasonable for a home :)

How much heat does a Single generate? (to get an idea how much the ambient temperature actually rises from the Single itself)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on May 17, 2013, 06:38:54 PM
23-ish C, that's reasonable for a home :)

How much heat does a Single generate? (to get an idea how much the ambient temperature actually rises from the Single itself)
A Single running 832Mhps firmware dissipates 80W of heat (that includes the A/C adapter losses). Halfway between a 60W and 100W lightbulb. How much that will affect ambient depends on many factors including room size and air circulation rate.

If you are running just 1, you may not notice a difference at all. If you are running 10, you most definitely will.



Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on May 17, 2013, 06:52:39 PM
23-ish C, that's reasonable for a home :)

How much heat does a Single generate? (to get an idea how much the ambient temperature actually rises from the Single itself)
A Single running 832Mhps firmware dissipates 80W of heat (that includes the A/C adapter losses). Halfway between a 60W and 100W lightbulb. How much that will affect ambient depends on many factors including room size and air circulation rate.

If you are running just 1, you may not notice a difference at all. If you are running 10, you most definitely will.

Thanks :) Or just spread the 10 around the house to heat up rooms :p


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on May 17, 2013, 07:06:44 PM
Thanks :) Or just spread the 10 around the house to heat up rooms :p
Of course, you would need a host PC as well. And typical PCs use more than 80W ... you probably wouldn't want to spread them around *too* much or you'd need a lot of PCs. ;)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on May 17, 2013, 07:15:46 PM
Thanks :) Or just spread the 10 around the house to heat up rooms :p
Of course, you would need a host PC as well. And typical PCs use more than 80W ... you probably wouldn't want to spread them around *too* much or you'd need a lot of PCs. ;)

I assume a raspberry pi can power it? Small and tiny, maybe stick it somewhere on the BFL case itself :)

And owning one raspberry pi more or less is never a bad thing, they come in handy for everything :p media centers, reverse proxies, cameras just now as well :)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on May 17, 2013, 07:22:57 PM
I assume a raspberry pi can power it? Small and tiny, maybe stick it somewhere on the BFL case itself :)

And owning one raspberry pi more or less is never a bad thing, they come in handy for everything :p media centers, reverse proxies, cameras just now as well :)
I like how you think.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on June 04, 2013, 02:23:41 PM
When I use Easyminer, it displays a temperature of 325 degrees... Everything sent to the unit is also throttled

What am I doing wrong? :( (it's obviously not so hot here :p room temp is 19 degrees C)


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on June 04, 2013, 02:52:25 PM
When I use Easyminer, it displays a temperature of 325 degrees... Everything sent to the unit is also throttled
First question: Are you using a Jalapeno or Single with Easyminer? As far as I know Easyminer only supports the old FPGA Singles at the moment. The latest Easyminer version is 1.0.9.

Are you certain the unit is throttling? Throttling is indicated by the unit's front LED flashing about once per second for 10-15 seconds. Is this the behaviour you are seeing?

A reported temp of 325 (F or C) is clearly wrong; the unit would fry long before that. You may have a faulty temperature sensor, or the communication between the PC and your unit is flakey (bad USB hub or port, for example).

When you run Easyminer with your unit plugged in, what does Easyminer display (i.e. does it correctly recognize the unit type, port, etc.)? Are you able to run the Easyminer unit diagnostics on the unit? If so, what is the result?

You may want to try a different USB port; if you are using a hub, try plugging your unit directly into a port on your PC. I've used Easyminer quite a bit (though not in the last few months), just to run diagnostics and load firmware, not for mining.

The more details you can provide about your setup, the more likely that someone here will be able to help.



Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on June 04, 2013, 04:33:44 PM
When I use Easyminer, it displays a temperature of 325 degrees... Everything sent to the unit is also throttled
First question: Are you using a Jalapeno or Single with Easyminer? As far as I know Easyminer only supports the old FPGA Singles at the moment. The latest Easyminer version is 1.0.9.

Are you certain the unit is throttling? Throttling is indicated by the unit's front LED flashing about once per second for 10-15 seconds. Is this the behaviour you are seeing?

A reported temp of 325 (F or C) is clearly wrong; the unit would fry long before that. You may have a faulty temperature sensor, or the communication between the PC and your unit is flakey (bad USB hub or port, for example).

When you run Easyminer with your unit plugged in, what does Easyminer display (i.e. does it correctly recognize the unit type, port, etc.)? Are you able to run the Easyminer unit diagnostics on the unit? If so, what is the result?

You may want to try a different USB port; if you are using a hub, try plugging your unit directly into a port on your PC. I've used Easyminer quite a bit (though not in the last few months), just to run diagnostics and load firmware, not for mining.

The more details you can provide about your setup, the more likely that someone here will be able to help.

Got it working, apparently it was because of the power supply being not adequate... Changed it and all is well, no throttling (it was indeed throttling, the led was blinking and easyminer v1.2 beta said so too)

It was the old FPGA Single

One last question, I got it running in cgminer now, and it reports 52 degrees C as temp. How hot does the Single FPGA usually get?


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: Epoch on June 04, 2013, 04:43:21 PM
Got it working, apparently it was because of the power supply being not adequate... Changed it and all is well, no throttling (it was indeed throttling, the led was blinking and easyminer v1.2 beta said so too)

It was the old FPGA Single

One last question, I got it running in cgminer now, and it reports 52 degrees C as temp. How hot does the Single FPGA usually get?
Glad to see you have it working. 52C is fine; most of my units run between 65-75C and I have a couple that touch 80C. I have replaced the stock fans with slower, quieter ones which is why my temps are so high. As long as your unit doesn't throttle, you are fine. Each Single seems to have a different threshold, though.

With your temperature being as low as they are, you may want to consider loading a faster firmware for a hashrate boost.


Title: Re: 896 mh/s firmware release - Butterfly Labs
Post by: CumpsD on June 04, 2013, 05:00:58 PM
I used auto tune, ended on 888 :)

But i'll replace them with noctua's for silence ;)

And something is vibrating inside, hard to find the source :p