Blue Fury Support Thread.

[bitterdog]

start with 2-3 lines across the resistor

[nicksmith]

Mod works great, go get a ohm meter for $5 vs guessing at things. .85 seems a good mix of speed vs hw errors.

[bitterdog]

2 of these are pencil modded at different resistances . Been running for 5.5 hrs now with a fan set to low blowing on them - cool to the touch

USING BFGminer 3.2 because it shows the serial #
Ill mod the other 3 and check back later so you can see the differances

here is the 10 min mark
I have the fan on medium now and I could stick my tongue on it if I was drunk
DO NOT DO THIS WITHOUT A FAN BLOWING ON THEM!
Id imagine if you submerge these in Mineral oil you could push 4.5GH/s if you swap that resistor to .65k




After 1.5 hrs things settle down a little

[Eobot]

We'd love to add native support for the blue fury USB's to work in the Eobot miner/software...let us know who is interested and if anyone wants to provide any help.

[Epinnoia]

Beastlymac,

You seem to have experience running it on VMware/Ubuntu in BFGMiner.  I could get it to work with cgminer, but I couldn't figure out how to get BFGminer to detect the Fury in VM. 

What driver should the card have on the Win7 64bit side if trying to use bfgminer inside VM?  I assumed the same one that BFGminer uses in Win7.  And I have it working in Win7.  It just won't detect them in the VM at all. 

[Epinnoia]

Id imagine if you submerge these in Mineral oil you could push 4.5GH/s if you swap that resistor to .65k

They don't seem to go above 3.2ghps in best case scenarios, even though it's a theoretical 5ghps chip. 

[expalpo]

Anyone have a link/access to the datasheet for the bitfury chip?

[kabopar]

2 of these are pencil modded at different resistances . Been running for 5.5 hrs now with a fan set to low blowing on them - cool to the touch

USING BFGminer 3.2 because it shows the serial #
Ill mod the other 3 and check back later so you can see the differances

Here are my results, with R15 resistance at 0.89K (in-circuit) after about 9 hours

The pool confirms these results (the 3rd number) The heatsink is a bit warm, but nothing to worry about

Thanks to all those that worked this out

[bitterdog]

2 of these are pencil modded at different resistances . Been running for 5.5 hrs now with a fan set to low blowing on them - cool to the touch

USING BFGminer 3.2 because it shows the serial #
Ill mod the other 3 and check back later so you can see the differances

here is the 10 min mark
I have the fan on medium now and I could stick my tongue on it if I was drunk
DO NOT DO THIS WITHOUT A FAN BLOWING ON THEM!
Id imagine if you submerge these in Mineral oil you could push 4.5GH/s if you swap that resistor to .65k




After 1.5 hrs things settle down a little

And here is 9 hours 40 mins. Next Im going to put back to stock and see where it came from

[elpenguin]

I wonder if I have a bad unit. I've read through this thread, and I've never seen anything better than 1.2GH/s. Different setups, always powered. Screen shot below shows bfgminer 3.5.1, but I've tried cgminer 3.7.2 and bfgminer 3.2.0. Linux and windows.

<image removed>

If this is a bad unit, can I send it in for a replacement/repair?

<image removed>

I am having the same problem and I have also tried Linux, Windows, cgminer and bfgminer. Have you made any progress?

Yes, I contacted my group buy leader. Sending the unit back to him for replacement.

Under BFGMiner the first figure is 5 sec average, second figure is all time average, third figure is average for pool (corrected for rejected).

How long were you connected?  It could take an hour or more to settle.

That was running for a couple of hours. I will try again and leave it overnight.

I left it running all night and it has a pool average of 1.3Ghs.

[Mudbankkeith]

I wonder if I have a bad unit. I've read through this thread, and I've never seen anything better than 1.2GH/s. Different setups, always powered. Screen shot below shows bfgminer 3.5.1, but I've tried cgminer 3.7.2 and bfgminer 3.2.0. Linux and windows.

<image removed>

If this is a bad unit, can I send it in for a replacement/repair?

<image removed>

I am having the same problem and I have also tried Linux, Windows, cgminer and bfgminer. Have you made any progress?

Yes, I contacted my group buy leader. Sending the unit back to him for replacement.

Under BFGMiner the first figure is 5 sec average, second figure is all time average, third figure is average for pool (corrected for rejected).

How long were you connected?  It could take an hour or more to settle.

That was running for a couple of hours. I will try again and leave it overnight.

I left it running all night and it has a pool average of 1.3Ghs.

BFGMiner 3.6.0 is now available.
Also check your internet connection. something like:- Speedtest.net (its a long shot but you may have a problem there)

After that........................

[Atomar]

How about to replace the restistor with an Ω:.85 instead of the pencil mod ?? Would that work to ??
Or what's the "best/savest" restistor to use and get the fastest speed ??

[bitterdog]

2 of these are pencil modded at different resistances . Been running for 5.5 hrs now with a fan set to low blowing on them - cool to the touch

USING BFGminer 3.2 because it shows the serial #
Ill mod the other 3 and check back later so you can see the differances

here is the 10 min mark
I have the fan on medium now and I could stick my tongue on it if I was drunk
DO NOT DO THIS WITHOUT A FAN BLOWING ON THEM!
Id imagine if you submerge these in Mineral oil you could push 4.5GH/s if you swap that resistor to .65k




After 1.5 hrs things settle down a little

And here is 9 hours 40 mins. Next Im going to put back to stock and see where it came from

And this is my last screenshot

1.5 hours STOCK SPEEDS (UNMODDED)

[kabopar]

How about to replace the restistor with an Ω:.85 instead of the pencil mod ?? Would that work to ??
Or what's the "best/savest" restistor to use and get the fastest speed ??

It would not be a ".85" but more likely a 10k instead of the present 22K, as per Beastlymac's earlier comment "from what the EE told me you want to replace the 22K resistor with a 10K one".  (or maybe an added 18k in parallel with the present 22k to achieve the same 10k).  The 0.85K reading during the 'pencil mod' is the observed 'in-circuit' resistance.  I suspect that de-soldering the current SMD 22k resistor and replacing it with 10k is a high risk task that most of us do not have the tools and skills to perform.  At the same time a few pencil lines are low risk and reversible...

Cheers

[inform]

But how much volts this eat procedure your side

[Mudbankkeith]

How about to replace the restistor with an Ω:.85 instead of the pencil mod ?? Would that work to ??
Or what's the "best/savest" restistor to use and get the fastest speed ??

It would not be a ".85" but more likely a 10k instead of the present 22K, as per Beastlymac's earlier comment "from what the EE told me you want to replace the 22K resistor with a 10K one".  (or maybe an added 18k in parallel with the present 22k to achieve the same 10k).  The 0.85K reading during the 'pencil mod' is the observed 'in-circuit' resistance.  I suspect that de-soldering the current SMD 22k resistor and replacing it with 10k is a high risk task that most of us do not have the tools and skills to perform.  At the same time a few pencil lines are low risk and reversible...

Cheers

Or a 5K to 15K variable?      set at nominal 10K for fine tuning?

[kabopar]

How about to replace the restistor with an Ω:.85 instead of the pencil mod ?? Would that work to ??
Or what's the "best/savest" restistor to use and get the fastest speed ??

It would not be a ".85" but more likely a 10k instead of the present 22K, as per Beastlymac's earlier comment "from what the EE told me you want to replace the 22K resistor with a 10K one".  (or maybe an added 18k in parallel with the present 22k to achieve the same 10k).  The 0.85K reading during the 'pencil mod' is the observed 'in-circuit' resistance.  I suspect that de-soldering the current SMD 22k resistor and replacing it with 10k is a high risk task that most of us do not have the tools and skills to perform.  At the same time a few pencil lines are low risk and reversible...

Cheers

Or a 5K to 15K variable?      set at nominal 10K for fine tuning?

Probably a good idea for the next batch, if the cost impact is not too high.  The 'pencil mod' is simple and low risk, so far seems to be quite stable after about 14 hours.

[mikejones]

2 of these are pencil modded at different resistances . Been running for 5.5 hrs now with a fan set to low blowing on them - cool to the touch

USING BFGminer 3.2 because it shows the serial #
Ill mod the other 3 and check back later so you can see the differances


http://i40.tinypic.com/2qsbhvb.png

here is the 10 min mark
I have the fan on medium now and I could stick my tongue on it if I was drunk
DO NOT DO THIS WITHOUT A FAN BLOWING ON THEM!
Id imagine if you submerge these in Mineral oil you could push 4.5GH/s if you swap that resistor to .65k


http://i39.tinypic.com/2ym8zue.png

After 1.5 hrs things settle down a little

http://i40.tinypic.com/xpwi3c.png

And here is 9 hours 40 mins. Next Im going to put back to stock and see where it came from

http://i41.tinypic.com/2qbumfq.png

How do you return to stock??

[werauchimmer]

You need a specialized tool:



(Joking aside: Do NOT use the blue side!)

[Jeffrey]

Today I received my 5 Bluefury's. Happy yay.

I already had the latest zadig and cgminer 3.8.1.
First I plugged one in, installed it, ran cgminer and bam, 2.3ghs
Then I took my 49port hub (powered by a PSU which has 27a on 5v), plugged all 5 of them in in random slots, waited for them to be installed, ran cgminer and... sort of bam.
2.1 / 2.0 / 2.3 / 1.2 / 2.0

Oi, whats that, a 1.2?? It's also producing a lot more HW's than the others. So I pulled everything out, took the 1.2 one, tried it on the usb port directly, but still the same. Tried it via the hub without any other usb device plugged in, still the same. Tried a different system (same drivers, same miner) but still not more than 1.2

So... now what? Is it a faulty device? Is there anything I could try?

Any help is appreciated.

edit:
Just had a look at the average speed over a couple of hours
1.97 / 1.83 / 1.88 / 1.77 / 0.94
Feels way too low for devices being sold as 2.2 - 2.7... I should have a minimum of 11ghs but I'm only getting 8.39, that's nearly 3ghs difference