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Author Topic: [GUIDE] BitFury Miner Support/Tuning  (Read 145600 times)
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klondike_bar
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October 02, 2013, 07:42:50 PM
 #281

what is the spacing on the heatsink mount holes of the h-board? It looks like they may be 37.5mm or so width&length

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
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October 02, 2013, 09:16:10 PM
 #282

I'm still totally uncertain if I want to use these guys or not: http://www.amazon.de/gp/product/B004BU6ITM/

I'm scared of heat congestion between the boards getting worse. Just blowing the heat away softly through the naked gaps will help the best I think.
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October 02, 2013, 09:33:13 PM
 #283

I'm still totally uncertain if I want to use these guys or not: http://www.amazon.de/gp/product/B004BU6ITM/

I'm scared of heat congestion between the boards getting worse. Just blowing the heat away softly through the naked gaps will help the best I think.

id make sure to use a heatsink less than 10mm tall. 6mm would be better

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
No longer a wannabe - now an ASIC owner!
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October 02, 2013, 10:27:25 PM
 #284

can someone explain the "coreOK" stat better for me? I sometimes see chips with this as 0 or <10, and other times they are all in the hundreds.

When i start the miner, all chips report 756. within 5 minutes they are all under 700

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
No longer a wannabe - now an ASIC owner!
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October 07, 2013, 07:32:28 AM
 #285

can someone explain the "coreOK" stat better for me? I sometimes see chips with this as 0 or <10, and other times they are all in the hundreds.

When i start the miner, all chips report 756. within 5 minutes they are all under 700

Each chip has 756 cores. The software tracks which cores have found good nonces. You can see the full details in /tmp/.core.log

The numbers you're looking at are actually how many cores have *not* yet found a good nonce. Over time, if all cores are good, that number will approach 0.

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October 07, 2013, 05:58:56 PM
 #286

can someone explain the "coreOK" stat better for me? I sometimes see chips with this as 0 or <10, and other times they are all in the hundreds.

When i start the miner, all chips report 756. within 5 minutes they are all under 700

Each chip has 756 cores. The software tracks which cores have found good nonces. You can see the full details in /tmp/.core.log

The numbers you're looking at are actually how many cores have *not* yet found a good nonce. Over time, if all cores are good, that number will approach 0.

oh terrific, thanks. I was getting concerned to see some chips hitting '0' for this, and letting the crazy in my head associate it with temporary hashrate drops at the pool or chips switching off to 0 noncerates.

->  The chips turning off was fixed by a few more voltage tweaks - 0.825V across the caps seems to be the best, with tuning at 54 on 15 chips, and chip 1 at 53, I have a stable 38-42GH/s hourly rate (24hr average of ~39.85 GH/s).

At 0.840V i was getting about 41.5GH/s, but a chip turning off now and then bringing me down to 39GH. Not sure if this was a temp or voltage issue, but ive got some bigger 35x35x6mm heatsinks coming that i plan to strap 4 of on each board

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
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October 08, 2013, 11:10:08 AM
 #287

Great, woke up to 0Gh/s....

Drove to work (when I was off), yeah my luck.

My Pi was showing:



Had to hard reset.

These things require so much babysitting it aint funny anymore/

                                 
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October 08, 2013, 12:06:23 PM
 #288

Had to hard reset.

These things require so much babysitting it aint funny anymore/

I thought that, but then i backed off a bit on the tickering and let it do its thing. After about 6hrs to fully warm up and reach peak voltage, Ive been stable for 48hrs at 39.9GH/s average (+/- 2GH on the hourly reading)

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
No longer a wannabe - now an ASIC owner!
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October 08, 2013, 03:24:30 PM
 #289

I've been running the bitfury branch of BFGMiner for about a week now, with no major problems. Performance is identical to chainminer (30G + 30G + 35G accepted hashrate from 3 boards), but sometimes the hashrate (and power consumption) randomly drops 1%. This is fixed by restarting. I have no reason to use chainminer anymore, except to maybe fine-tune new boards as they come in.


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October 08, 2013, 04:05:09 PM
 #290

is there a way to get longer sampls than 5 minutes? would be fine for tuning.

                               
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October 08, 2013, 08:02:13 PM
 #291




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October 08, 2013, 08:43:43 PM
 #292

poser!  Cheesy
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October 09, 2013, 02:18:05 AM
 #293

Nice Spotts version 1 case there....  Thanks for the photo!

Might try turning down the humidity some - there's stuff that looks kind of like like mold growing out of the tops of all your chips....   Cheesy

Here's one of my plain-jane Bitfury rigs.  No heatsinks, nothing much but a little USB fan blowing on the h-boards.  Been running for weeks now, like a Duracell Bunny.


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October 09, 2013, 05:56:01 PM
 #294

Nice Spotts version 1 case there....  Thanks for the photo!

Might try turning down the humidity some - there's stuff that looks kind of like like mold growing out of the tops of all your chips....   Cheesy

Here's one of my plain-jane Bitfury rigs.  No heatsinks, nothing much but a little USB fan blowing on the h-boards.  Been running for weeks now, like a Duracell Bunny.


The KNC Jupiter under serves only as a stand right?  Tongue

Want to say thanks? 16ragydppe9QFRVhrdwEUjgfMS7KCfEFGY
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October 09, 2013, 06:15:35 PM
 #295

Nothing to see there - it's a, umm, like you said - a fancy stand - just a case with some fans on it.  Yeah.  Nothing important to see there - just ignore that part....
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October 09, 2013, 06:38:08 PM
 #296

Nothing to see there - it's a, umm, like you said - a fancy stand - just a case with some fans on it.  Yeah.  Nothing important to see there - just ignore that part....

It does look smart though, this unimportant table-top ornament, very shiny. Has yours caught fire yet Wink?

Bitcoin can only be understood backwards, but it must be lived forwards.
BitFury ASIC miner hosted group buy [DONE MINING]
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October 09, 2013, 06:47:25 PM
 #297

No, and it's put out a solid 580-600 Gh/s over the last 12 hours.  Guess mine wasn't one of the .001% that had bad caps.  At least it hasn't burned up any Rasperry PI's like one of my m-boards did.  That DID go up in smoke and burn...  

But - ignore that thing on the bottom, it's just an, umm, 800 watt ceramic space heater I use to keep my apartment warm....
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October 09, 2013, 06:55:36 PM
 #298

No, and it's put out a solid 580-600 Gh/s over the last 12 hours.  Guess mine wasn't one of the .001% that had bad caps.  At least it hasn't burned any Rasperry PI's like one of my m-boards did.  That DID go up in smoke and burn.... 

But - ignore that thing on the bottom, it's just a, umm, ceramic heater I use to keep my apartment warm....
Nice, low noise  ceramic heater lol
About burned ceramic caps. I'm not sure, but I think they burn only those that are not in the air stream.
I need good quality pictures, but it seems to me that the corner capacitors are not the best soldered. What also may be the cause.   

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October 09, 2013, 08:16:16 PM
 #299

No, and it's put out a solid 580-600 Gh/s over the last 12 hours.  Guess mine wasn't one of the .001% that had bad caps.  At least it hasn't burned up any Rasperry PI's like one of my m-boards did.  That DID go up in smoke and burn...  

But - ignore that thing on the bottom, it's just an, umm, 800 watt ceramic space heater I use to keep my apartment warm....

Sorry -Redacted-, just a joke, no offence meant. It looks like good kit, whatever it is.

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October 09, 2013, 08:32:54 PM
 #300

I imagined Redacted post with a photo of Jupiter from which smoke rises and signature "Something went terribly wrong"

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