yurtesen
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August 28, 2013, 11:35:44 AM |
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By changing the resistor to 2.2k gives us 0V74 Vcore. This will push the hashrate up a bit and support higher clocks. We will run a production batch with this resistor to try to bring the cards within spec. Fans are highly recommended in anything but polar regions  Why not glue heatsinks on the chips? |
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-Redacted-
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August 28, 2013, 12:01:52 PM |
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SMT resistor costs 0.005 in quantity. How much does thermal glue and 10 heatsinks cost?
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Dyaheon
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Activity: 121
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August 28, 2013, 12:03:59 PM |
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I was the second order (#218), and now happily hashing away Went for the install before instructions were available, and powered one H-board when it was oriented the wrong way  Luckily only one of the 16 chips was burned and it's hashing fine now. H-board components should be facing the raspberry. Gotta be careful with this stuff. Ordered 6 starter kits, got 8 to hit the promised hashrate as they're slightly underperforming. Getting ~150-157GH, I think. It varies a bit and I don't have a good reading from pool yet. Power usage is 120W at the wall, which comes to just 0.8J/GH. Very nice. No noise either obviously as it's passively cooled, which is great if you're going to be mining somewhere where that matters. Compact design is a plus too. A crappy (sorry!) pic of a starter kit:  Edit: 2 of the boards are slow. Not sure what's the matter with those, they seem to lose speed over time, with some chips going offline. Perhaps the software needs a bit more polishing   |
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yurtesen
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August 28, 2013, 12:08:32 PM |
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SMT resistor costs 0.005 in quantity. How much does thermal glue and 10 heatsinks cost?
I am not sure if I understand what you mean? Resistor is not a magic solution to generated heat? Punin was saying that by changing the resistor they are increasing the voltage and achieve higher clock rate. In expense of higher heat generation. Therefore I was wondering why wouldnt they glue heatsinks on the boards to cool them a bit. If you get heatsinks/glue in mass quantities the cost would be nearly nothing... |
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spiccioli
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Activity: 1379
Merit: 1003
nec sine labore
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August 28, 2013, 12:09:40 PM |
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Dyaheon, did you get a tracking number when your unit was shipped and do you mind posting a photo of the assembled unit? Thanks! spiccioli |
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Anduck
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quack
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August 28, 2013, 12:13:02 PM |
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Hi! I had order #217. It's hashing with only 54 watts from the wall!! Very much thanks to Punin & Bitfury group!  |
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Dyaheon
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August 28, 2013, 12:14:57 PM |
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Dyaheon,
did you get a tracking number when your unit was shipped and do you mind posting a photo of the assembled unit?
Thanks!
spiccioli
I did, yeah. Anduck's pic will probably suffice? My setup is ugly for now. |
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Sitarow
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Activity: 1792
Merit: 1047
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August 28, 2013, 12:16:50 PM |
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Hi! I had order #217. It's hashing with only 54 watts from the wall!! Very much thanks to Punin & Bitfury group! Great setup |
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cet
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August 28, 2013, 12:18:04 PM |
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I thought you had to populate the m-board in order (slot 1, slot 2, etc.) or the m-board would not see the later h-boards? It looks like you've spread the h-board out over the bus. Did they all come up and work?
/cet
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Sitarow
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August 28, 2013, 12:20:27 PM |
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I thought you had to populate the m-board in order (slot 1, slot 2, etc.) or the m-board would not see the later h-boards? It looks like you've spread the h-board out over the bus. Did they all come up and work?
/cet
Seems they are now grouped into A B C D |
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-Redacted-
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August 28, 2013, 12:22:56 PM |
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I thought you had to populate the m-board in order (slot 1, slot 2, etc.) or the m-board would not see the later h-boards? It looks like you've spread the h-board out over the bus. Did they all come up and work?
/cet
These are version 2 m-boards, you can tell by the PCIe power connectors versus the ring terminal connectors on version 1. Version 2 boards need to have boards populated one per bank instead of in order. |
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Isokivi
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August 28, 2013, 12:28:43 PM |
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Important: Also please note that if you are not populating the M-board fully the best results will be achieved by spreading the H-boards evenly between the four channels.
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Bitcoin trinkets now on my online store: btc trinkets.com <- Bitcoin Tiepins, cufflinks, lapel pins, keychains, card holders and challenge coins. |
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spiccioli
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Merit: 1003
nec sine labore
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August 28, 2013, 12:31:03 PM |
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Dyaheon,
did you get a tracking number when your unit was shipped and do you mind posting a photo of the assembled unit?
Thanks!
spiccioli
I did, yeah. Anduck's pic will probably suffice? My setup is ugly for now. Yes, thanks, it is enough spiccioli |
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cet
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Activity: 100
Merit: 10
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August 28, 2013, 12:35:15 PM |
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I thought you had to populate the m-board in order (slot 1, slot 2, etc.) or the m-board would not see the later h-boards? It looks like you've spread the h-board out over the bus. Did they all come up and work?
/cet
These are version 2 m-boards, you can tell by the PCIe power connectors versus the ring terminal connectors on version 1. Version 2 boards need to have boards populated one per bank instead of in order. That looks like another great improvement on the m-board! I didn't notice that the h-board slot number been updated, looks like identifying the banks will be easy. /cet |
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mr_rulezzz
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Activity: 61
Merit: 10
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August 28, 2013, 12:39:22 PM |
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after starting device(without monitor) can some1 explain step by step what to do (how to connect and control miner from PC, ty forwrd)))
me wanna be prepared for action)
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tom99
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August 28, 2013, 12:58:59 PM |
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after starting device(without monitor) can some1 explain step by step what to do (how to connect and control miner from PC, ty forwrd)))
me wanna be prepared for action)
some use SSH to control Ras pi. |
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punin (OP)
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August 28, 2013, 01:09:20 PM |
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I thought you had to populate the m-board in order (slot 1, slot 2, etc.) or the m-board would not see the later h-boards? It looks like you've spread the h-board out over the bus. Did they all come up and work?
/cet
These are version 2 m-boards, you can tell by the PCIe power connectors versus the ring terminal connectors on version 1. Version 2 boards need to have boards populated one per bank instead of in order. Best way to populate is A1,B1,C1,D1 A2,B2………A4,B4,C4,D4. If you have problematic boards that give lot of errors try moving them as last card of bus. |
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MPOE-PR
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August 28, 2013, 01:11:25 PM |
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Hi!
I had order #217. It's hashing with only 54 watts from the wall!!
Very much thanks to Punin & Bitfury group!
Very nice. I'd like to ask everyone that receives one to consider posting proof so the bet may be accurately resolved. |
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nOObStyleX
Newbie
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Activity: 10
Merit: 0
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August 28, 2013, 01:20:09 PM |
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To 25 starter kit can i use next hboards? How many?
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punin (OP)
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August 28, 2013, 01:20:39 PM |
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after starting device(without monitor) can some1 explain step by step what to do (how to connect and control miner from PC, ty forwrd)))
me wanna be prepared for action)
We are working on web-based setup and stats. So getting up and running would require: - Assembly according to included instructions (we're not included in first shipped units). - Powering up - Pointing web browser to your router to see what IP was given to RasPi (might not even be necessary as we have hosthame set). - Pointing web browser to RasPi and entering your settings |
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