[ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING***

[dben428]

Has anyone had success contacting sales re: RMA's ? Have been waiting on a response for an RMA on 3 bad h-cards

RMA issues aside, these rigs are beasts once they are configured and placed in an environment with proper cooling ! The one full rig I have up and running has settled around 535 GHs !

I did have success with my RMA. After submitting my Oct 31 RMA for one broken H-board, Yvonne contacted me via email on Nov 12 and the replacement board shipped the next day. I received it yesterday.

[BTClobsta]

Has anyone had success contacting sales re: RMA's ? Have been waiting on a response for an RMA on 3 bad h-cards

RMA issues aside, these rigs are beasts once they are configured and placed in an environment with proper cooling ! The one full rig I have up and running has settled around 535 GHs !

are you running the 3.0 m/boards? what image file are you using? how are you powering them. is it with just the 2 pci-e plugs? do you have pics?

[klondike_bar]

what did you do to get them going at that speed?
anyone have a recommendation for a voltmeter?

 Played a game of "musical h-cards" where I ran the rig for about 5 minutes, took note of which cards were faster than others, shutdown, moved the faster cards to the front, and slower cards to the back, restart, etc.

 Also, FANS FANS FANS ! Lots of airflow ! These guys really need to stay cool and ventilated.

http://www.amazon.com/gp/product/B005EK3NRS/ is what I'm using to tune my gear.

nice job.  i think i can do that.

why did you need the voltmeter then?

check the voltage on the cards when running to determine how to best tune the trimpot.
0.78V is about as low as you should go, even without heatsinks
0.8-0.83V is good if you have reasonable airflow and no heatsinks
0.84-0.88V is good if you have reasonable airflow AND heatsinks
0.9V-0.95V if you have LOTS of airflow and heatsinks. might be hard to get this high if you have more than 8 cards in the rig due to the close proximity of eachother's heat

[cypherdoc]

what did you do to get them going at that speed?
anyone have a recommendation for a voltmeter?

 Played a game of "musical h-cards" where I ran the rig for about 5 minutes, took note of which cards were faster than others, shutdown, moved the faster cards to the front, and slower cards to the back, restart, etc.

 Also, FANS FANS FANS ! Lots of airflow ! These guys really need to stay cool and ventilated.

http://www.amazon.com/gp/product/B005EK3NRS/ is what I'm using to tune my gear.

nice job.  i think i can do that.

why did you need the voltmeter then?

check the voltage on the cards when running to determine how to best tune the trimpot.
0.78V is about as low as you should go, even without heatsinks
0.8-0.83V is good if you have reasonable airflow and no heatsinks
0.84-0.88V is good if you have reasonable airflow AND heatsinks
0.9V-0.95V if you have LOTS of airflow and heatsinks. might be hard to get this high if you have more than 8 cards in the rig due to the close proximity of eachother's heat

is there a pic showing the exact placement required of the probes during measurement?  so you measure while it's powered up?  how do you get to the boards in the middle like slot 9?

[Asinine]

Now that I got BFG running, I went through the voltages and adjusted them.  The ones in the back ran away up to .88 and I trimmed them back down to .85-.87.  I adjusted the ones in bank 0 up to .86.  Bank 1 is at .83-.835.  Bank 2 is at about .86.  All cards are heatsinked on the diffusion plate on the back with special attention paid to the regulator.  The cards are running between 90F and 110F.  The entire setup is pulling 396 W from the wall.  It seems to be chugging along, although I am wondering "Where's the beef?"  That and the errors...
 

Code:

 bfgminer version 3.5.1 - Started: [2013-11-16 08:46:54] - [  0 days 00:06:41]
 [M]anage devices [P]ool management [S]ettings [D]isplay options  [H]elp [Q]uit
 Connected to mint.bitminter.com diff 512 with stratum as user [removed]_[#]
 Block: ...6dc9b988 #269964  Diff:511M ( 3.66Ph/s)  Started: [08:46:53]
 ST:32  F:0  NB:1  AS:0  BW:[ 60/ 22 B/s]  E:1869.49  I:13.30mBTC/hr  BS:58.6k
 4/256        | 429.1/426.1/399.3Gh/s | A:59 R:0+0(none) HW:2539/4.5%
--------------------------------------------------------------------------------
 BSB 0:       | 121.5/120.6/116.1Gh/s | A:17 R:0+0(none) HW: 582/4.4%
 BSB 1:       | 100.9/102.1/87.90Gh/s | A:13 R:0+0(none) HW:1238/8.3%
 BSB 2:       | 107.1/105.5/102.1Gh/s | A:12 R:0+0(none) HW: 348/2.9%
 BSB 3:       | 101.8/100.3/95.38Gh/s | A:17 R:0+0(none) HW: 378/2.5%
--------------------------------------------------------------------------------
 [2013-11-16 08:53:22] BSB 0cc: 8 of the last 10 results were bad, reinitialisin
g
 [2013-11-16 08:53:25] BSB 3bb: 8 of the last 14 results were bad, reinitialisin
g
 [2013-11-16 08:53:27] BSB 1bp: 8 of the last 19 results were bad, reinitialisin
g
 [2013-11-16 08:53:31] BSB 0bh: 8 of the last 25 results were bad, reinitialisin
g
 [2013-11-16 08:53:34] BSB 1bv: 8 of the last 8 results were bad, reinitialising

 [2013-11-16 08:53:35] BSB 1ah: 8 of the last 20 results were bad, reinitialisin
g

[Xian01]

why did you need the voltmeter then?

 Used it to troubleshoot and identify the 3 h-cards I requested an RMA for. Took a voltmeter to all the cards in the second rig while testing 16 cards one-by-one.

 Also used the voltmeter to tune a couple Erupter Blades I have a while back.

 Seems like a good geek tool to have in any respectable tool-bag either way.

[klondike_bar]

why did you need the voltmeter then?

  Used it to troubleshoot and identify the 3 h-cards I requested an RMA for. Took a voltmeter to all the cards in the second rig while testing 16 cards one-by-one.
 Also used the voltmeter to tune a couple Erupter Blades I have a while back.
 Seems like a good geek tool to have in any respectable tool-bag either way.

^yup, +1

voltmeter is great for almost any sort of electronics troubleshooting - its the essential first aid kit for electrical issues, along with electrical tape

[cypherdoc]

*Facepalm*  Someone please tell me they have a copy of the Vanilla V3 image, or that one of the older ones works?  I was shipped a blank SD card.

And, yes, I did have the sense to plug it into a PC to try to back it up prior to inserting it in the Pi.

Edit:  Bah, V2 won't fit on the card and GandalfG's image, while booted, isn't generating any hashes.  I don't know if it's my rig or not, yet.

Login with ssh and check what chainminer is doing:

Code:

sudo screen -r | grep -m1 Detached | cut -b2-7

i tried that command and got back a 4377..

what does that mean?

[cypherdoc]

why did you need the voltmeter then?

 Used it to troubleshoot and identify the 3 h-cards I requested an RMA for. Took a voltmeter to all the cards in the second rig while testing 16 cards one-by-one.

 Also used the voltmeter to tune a couple Erupter Blades I have a while back.

 Seems like a good geek tool to have in any respectable tool-bag either way.

good info.  already seeing some results from your card rotation strategy. 

any pics as to exactly where you put your probe tips?  there must be a link somewhere.  also how do you reach into the middle slots to measure?  doesn't seem like enough room.

[Doff]

Has anyone had success contacting sales re: RMA's ? Have been waiting on a response for an RMA on 3 bad h-cards

RMA issues aside, these rigs are beasts once they are configured and placed in an environment with proper cooling ! The one full rig I have up and running has settled around 535 GHs !

what did you do to get them going at that speed?

anyone have a recommendation for a voltmeter?

The thins I have noticed are this, You need to keep the Cards stable while being cooled. The Heatsinks on the back of the regulator covering as much of the exposed silver looking part really helps, and then just a good amount of air flow across them. Also I just have them all set to Auto because over a few hours time they settle at much better Speed than when adjusting them manually even with the dead chips.

I have been stable at 585+ and have 1 Card with 3 dead chips on it.

[greaterninja]

Last night my bitfury rig stopped mining on us1.ghash.io:3333  Specifically only my worker1 account.


Turns out my worker1 no longer mines on us1.ghash.io:3333.


it mines on 2 other pools ....too bad i had to re-image and try messing with h-cards first...  I've double, triple checked, something is wrong with my worker being stuck on us1.ghash.io pool


12 hrs wasted time.

**edit**

it mines on nl1.ghash.io:3334

I figured I should post this so you guys don't lose a lot of downtime.

[cypherdoc]

i haven't heard anybody talk about bad slots.

for instance, i have an m board where slots 1 & 3 in bank 1 appear to be dead.  i've swapped multiple good h boards that previously were hashing @ 32-36 into these slots and they won't even boot up beyond 0.  how do you deal with that?

another weird thing is, given those facts, why does Xian's strategy of swapping good cards to the front of the m board even work?  does anyone understand the organizational structure of how voltage flows thru the 4 banks and 16 slots?  Dave insinuated the concept of a bank doesn't apply for newer boards (v3 m boards) here:

"Don't pay attention to the Bank 1, Bank 2, etc.  Those line up for V2 M-boards.  The numbers of the slots do line up as 1-16 map to 1 - 9, A - F.  There, you can see the output of each H-card."

https://bitcointalk.org/index.php?topic=288109.0

[Doff]

Last night my bitfury rig stopped mining on us1.ghash.io:3333  Specifically only my worker1 account.


Turns out my worker1 no longer mines on us1.ghash.io:3333.


it mines on 2 other pools ....too bad i had to re-image and try messing with h-cards first...  I've double, triple checked, something is wrong with my worker being stuck on us1.ghash.io pool


12 hrs wasted time.

**edit**

it mines on nl1.ghash.io:3334

I figured I should post this so you guys don't lose a lot of downtime.

Same thing for me greaterninja, it happened right after they had an outage last night. I sent them a support ticket about it I am pretty sure its on their end since I have 3 different miners that will not connect to it.

[cypherdoc]

which just goes to show that chainminer needs a failover mode.

[Bogart]

Last night my bitfury rig stopped mining on us1.ghash.io:3333  Specifically only my worker1 account.

Turns out my worker1 no longer mines on us1.ghash.io:3333.

it mines on nl1.ghash.io:3334[/b]

I ran into that same issue recently trying to mine on btcguild using the MPBM software.

It seems that not all mining software handles the stratum "client reconnect" message, where the pool asks the client to change hosts.

I'm guessing the included ChainMiner software also does not handle that message correctly.

(that's just a guess).

[Doff]

Last night my bitfury rig stopped mining on us1.ghash.io:3333  Specifically only my worker1 account.

Turns out my worker1 no longer mines on us1.ghash.io:3333.

it mines on nl1.ghash.io:3334[/b]

I ran into that same issue recently trying to mine on btcguild using the MPBM software.

It seems that not all mining software handles the stratum "client reconnect" message, where the pool asks the client to change hosts.

I'm guessing the included ChainMiner software also does not handle that message correctly.

(that's just a guess).

I noticed that cgminer was still using us1.ghash.io but non of the work was being registered on their site, so I had cgminer also switch to nl1. Even though it handled the switches something was still borked.

[Doff]

Id love to have some updates about or maybe even a guide to Chainminer, my biggest issue is the lack of failover and how it provides so little info while running. Unless you check the logs on the PI its quite useless.

[Bogart]

I'm not a bitfury owner so I haven't been following the thread, but why is it that cgminer doesn't support the hardware?

Is it a closed design or something?

[Doff]

I'm not a bitfury owner so I haven't been following the thread, but why is it that cgminer doesn't support the hardware?

Is it a closed design or something?

I couldn't say, I am talking with Kano currently about a version of Cgminer that supports Bitfury chips on Bitbuners V1 design, however it does not appear to work with the V3 miner.  Kano posted about it in this thread back a few pages here https://bitcointalk.org/index.php?topic=251966.msg3552824#msg3552824

If I remember correctly about 3 Months ago Con said something about it being a bit difficult to support the way it was designed to work with the RPI.

[Keefe]

Now that I got BFG running, I went through the voltages and adjusted them.  The ones in the back ran away up to .88 and I trimmed them back down to .85-.87.  I adjusted the ones in bank 0 up to .86.  Bank 1 is at .83-.835.  Bank 2 is at about .86.

You are now running the back cards at a much lower voltage than the front ones. Unless you accounted for the voltage rise on the ground plane from front to back of the M-board?

The voltage between the M-board's ground screw and the top of the inductor, will vary depending on how close that card is to the M-board's power input. But the chips only care about the voltage between the card's ground and power planes. The correct way to measure voltage is between the top of the inductor and the back of the card's VRM (the exposed silver pad). That will remain the same regardless of which slot the card is in (except for airflow and temperature affecting the VRM, trimpot, or pencil-modded resistor).