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

[tom99]

It looks like the EU distributor has them in stock now for $336.

  yes, for old mboard V1.0 to 2.3.

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[xstr8guy]

They can't drop their prices before they ship all preorders at the old higher price.

Yes, I know that.  I think that's why they now stopped selling additional kits and boards.  And it won't take them much longer to ship all remaining orders.  I don't think they actually assemble anything, they just pack them up and ship.  So I bet they are finished by the end of the week.  And in a week or two, the price will drop.

That's my theory. 

[tacotime]

Fedex just got to me, I'm going to pick it up later tonight and I'll try and have some photos/thermal data up for you guys

[Doff]

Does anyone have a good guide for what diff you should set these too, what would be good for 550GH?

Also is there a way to reset individual banks?

Last question how do you know if you have bad chips on bank?

I scrolled through the guide but did not find these answers.

Thanks

[Morblias]

Does anyone have a good guide for what diff you should set these too, what would be good for 550GH?

Also is there a way to reset individual banks?

Last question how do you know if you have bad chips on bank?

I scrolled through the guide but did not find these answers.

Thanks

1) Hash rate / 1.4

2) not sure

3) think this should show it: (I'm not 100% sure on this, not at home to test right now)

Code:

sudo nano /run/shm/.stat.log

[Doff]

Cool thank you, I figured the DIff part was simple.

I have 3 Dead banks or at least they say 0 Noncerate. I cannot flip them to different slots until later.

I noticed these did not have anything marked on them to tell you what Bank to use either. There any advice you can give on that Dave? Or does it matter on these new ones which bank they are in?

[frankenmint]

Should I apply Heatsinks to This area on the Back of The boards?:




So that it looks like this?:

[GandalfG]

Should I apply Heatsinks to This area on the Back of The boards?:

https://lh5.googleusercontent.com/fuR6HtodrHnjSTkrou5GUQGprchhy0x-IDCSmigmKnw=w276-h207-p-no


So that it looks like this?:

https://lh5.googleusercontent.com/-_o1jtddZ770/UnmFgDi5vII/AAAAAAAAApk/JSJ3H4Z6aLY/w408-h306-no/1383695494685.jpg

Its not good idea apply radiator on parts as you try. Glue heatsink on flat (without any electronic parts) area.

Look here https://bitcointalk.org/index.php?topic=251966.msg3431070#msg3431070

[klondike_bar]

Does anyone know how to downclock the chips on the new boards? I don't have enough cooling apparently and my heat sinks won't arrive for another week. The chips just keep cycling, the high side of 575GH for my whole rig, and then down to 100GH, slowly, as the Hboards turn the chips off one by one.

The DHCP script did not work for my network, I had to have a friend go in the Pi and help me set up a static IP manually.

Aside from that, the October rig is great. For anyone still waiting on theirs, make sure you have good cooling ready to go. I am looking at some 100cfm 120mm fans right now, but I might get ones a little stronger.

First, get alot of airflow through the cards. A cheap large box fan would probably suffice. If that doesn't solve the problem, you can turn off a few chips on each H-board to reduce the heat and current draw to prevent the regulator from shutting off. Let the autotuner do its thing with the rest of the chips. Do that by creating /opt/bitfury/best.cnf with something like this:

Code:

1	AIfDSo	54
2	AIfDSo	54
3	aifdso	0
4	AIfDSo	54
5	AIfDSo	54
6	AIfDSo	54
7	aifdso	0
8	AIfDSo	54
9	AIfDSo	54
10	AIfDSo	54
11	aifdso	0
12	AIfDSo	54
13	AIfDSo	54
14	AIfDSo	54
15	aifdso	0
16	AIfDSo	54
17	AIfDSo	54
...
256	AIfDSo	54

Restart chainminer after changing best.cnf:

Code:

sudo /opt/bitfury/start-miner.sh

I would advise against that - youll be trowing away too much hashpower. You have a few options i can think of:
1) cool better - heatsinks and fans will make the unit totally stable.
2) reduce chips to 52 or 53 tuning. youll lose maybe 10% speed but should gain stability as a result.
3) replace resistor R02F. A slightly higher resistance will reduce the hashrate to a stable level.

personally, i advise getting some better heatsinks and/or airflow. it is worth it for the extra 0.2-0.5BTC you will earn in the long run

[tacotime]

10x H boards heatsinked and running; getting 36 GH/s per board

Currently pulling about 420 w on a gold PSU

Pictures and thermals coming soon

[GandalfG]

10x H boards heatsinked and running; getting 36 GH/s per board

Currently pulling about 420 w on a gold PSU

Pictures and thermals coming soon

Taco can you post log from  admin page  ? I'm curious how many chip fully work on new version H-board.
And pictures boards  with your heasink

[tacotime]

10x H boards heatsinked and running; getting 36 GH/s per board

Currently pulling about 420 w on a gold PSU

Pictures and thermals coming soon

Taco can you post log from  admin page  ? I'm curious how many chip fully work on new version H-board.
And pictures boards  with your heasink

100% of chips are returning some sort of valid nonce, impressively, and the startup dump says 100% good cores

One board is a little bunk and throws a massive amount of errors in comparison to the others and the chips are tuning down to about 25 GH/s after a little while.  Rest of the boards seem OK.

edit: Restarted and it seems OK

[GandalfG]

10x H boards heatsinked and running; getting 36 GH/s per board

Currently pulling about 420 w on a gold PSU

Pictures and thermals coming soon

Taco can you post log from  admin page  ? I'm curious how many chip fully work on new version H-board.
And pictures boards  with your heasink

100% of chips are returning some sort of valid nonce, impressively, and the startup dump says 100% good cores

One board is a little bunk and throws a massive amount of errors in comparison to the others and the chips are tuning down to about 25 GH/s after a little while.  Rest of the boards seem OK.

Good news, I ordered few board to and hope get similar result.
There is still lower performance in last slot (A4, B4) on each  bank ? I tested many config, and all board have ~20% lower scores in last slot.
Unless overclocking do not see this too much. But with the increase voltage and Gh per board, the difference grows significantly.

Code:

0:	879	40.573	43.558	2834	203	1	0
1:	877	39.786	41.010	2779	75	0	0
2:	872	42.191	43.970	2947	151	0	0
3:	714	33.859	35.281	2365	158	0	0

[tacotime]

The slots are no longer labeled "A1 A2" etc, rather now they are just 0 1 2 3 .. E F

My bad performing card is in slot 7 and I haven't tried to the other slots out yet

edit: Slot 7 card just died, I will move it to a new slot and see if it hashes any better there

2nd edit: Okay, there ARE banks, they just arent labeled on the PCB.  Messing around with trying them in different banks now

[tom99]

The slots are no longer labeled "A1 A2" etc, rather now they are just 0 1 2 3 .. E F

My bad performing card is in slot 7 and I haven't tried to the other slots out yet

edit: Slot 7 card just died, I will move it to a new slot and see if it hashes any better there

2nd edit: Okay, there ARE banks, they just arent labeled on the PCB.  Messing around with trying them in different banks now

  Did you use fan on Hboards?

[tacotime]

The slots are no longer labeled "A1 A2" etc, rather now they are just 0 1 2 3 .. E F

My bad performing card is in slot 7 and I haven't tried to the other slots out yet

edit: Slot 7 card just died, I will move it to a new slot and see if it hashes any better there

2nd edit: Okay, there ARE banks, they just arent labeled on the PCB.  Messing around with trying them in different banks now

  Did you use fan on Hboards?

3x CM R4 @ 2k RPM, 120mm

Hboards are also heatsinked

[tacotime]

Code:

bad      off     per chip        good cores
0:      848     35.892  37.522  2507    76      4       0       0       16     00       (2.243/chip)    34%
1:      848     36.307  37.491  2536    15      0       0       0       16     00       (2.269/chip)    35%
2:      848     27.431  27.946  1916    134     16      5       2       16     00       (1.714/chip)    30%
4:      848     35.720  36.708  2495    68      2       0       0       16     00       (2.232/chip)    34%
5:      848     37.180  37.152  2597    14      1       0       0       16     00       (2.324/chip)    35%
6:      848     38.898  38.917  2717    8       2       0       0       16     00       (2.431/chip)    36%
8:      848     33.000  34.309  2305    82      4       0       0       16     00       (2.062/chip)    32%
9:      848     33.529  36.698  2342    82      1       0       0       16     00       (2.096/chip)    32%
A:      848     0.000   0.000   0       0       0       0       0       16     00       (0.000/chip)    9%      speed down
C:      848     35.648  36.793  2490    16      1       0       0       16     00       (2.228/chip)    34%

So, yeah, I have 1 bad H-board it appears.  It throttles down for about 15 minutes and then just goes to 0 GH/s

Uh, are these still covered under warranty if I heatsinked the back, Dave?

Edit: This is interesting, a second board just did the same thing. :|

[tacotime]

Okay, this is interesting.  There are two problem boards, and they keep shutting off as if they're thermocycling or something (go up to 36 GH/s, slowly go to zero, then suddenly go back to full speed).  The chips on these boards are fine by temperatures, all less than 60 C.

[GandalfG]

Okay, this is interesting.  There are two problem boards, and they keep shutting off as if they're thermocycling or something (go up to 36 GH/s, slowly go to zero, then suddenly go back to full speed).  The chips on these boards are fine by temperatures, all less than 60 C.

In the first slots try to keep the best cards. These problems in the past.
Move from slot A to last - C ?

[tom99]

Code:

bad      off     per chip        good cores
0:      848     35.892  37.522  2507    76      4       0       0       16     00       (2.243/chip)    34%
1:      848     36.307  37.491  2536    15      0       0       0       16     00       (2.269/chip)    35%
2:      848     27.431  27.946  1916    134     16      5       2       16     00       (1.714/chip)    30%
4:      848     35.720  36.708  2495    68      2       0       0       16     00       (2.232/chip)    34%
5:      848     37.180  37.152  2597    14      1       0       0       16     00       (2.324/chip)    35%
6:      848     38.898  38.917  2717    8       2       0       0       16     00       (2.431/chip)    36%
8:      848     33.000  34.309  2305    82      4       0       0       16     00       (2.062/chip)    32%
9:      848     33.529  36.698  2342    82      1       0       0       16     00       (2.096/chip)    32%
A:      848     0.000   0.000   0       0       0       0       0       16     00       (0.000/chip)    9%      speed down
C:      848     35.648  36.793  2490    16      1       0       0       16     00       (2.228/chip)    34%

So, yeah, I have 1 bad H-board it appears.  It throttles down for about 15 minutes and then just goes to 0 GH/s

Uh, are these still covered under warranty if I heatsinked the back, Dave?

Edit: This is interesting, a second board just did the same thing. :|

   Your Hboard maybe overheat that why Hboard shutdown and you need better cooling.