Can't wait for the news  |
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Not sure if needed anymore but I had enable icarus in my conf if I recall correct.
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Great work keeping everyone so well informed yohan! Enterpoint is really doing an excellent job so far with Cairnsmore1 and showing other FPGA producers how it should be done professionally!
Even if these FPGAs offered less MHash/$£, I'd still buy them from Enterpoint over the competitors products any day, solely on the support you've given the community on the development process so far...
Yohan does a great job ! To be fair, some competitors work alone or in a very small team. That leaves not much time for frequent updates. I own products of 3 different manufactors and all of them have been very helpful. |
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 afraid your GPUs can't keep up anymore ? I remember your words about FPGA junk... |
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Received my two singles today. Everything works fine. Thank you BFL for a great product.
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Is BFL obsolete already ?
They have fair products. Don't expect them to lean back and sleep. It's a fast moving game and nobody stays on top very long. |
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Set it to 0.2 or 0.1 if you are afraid . A lower hashrate is better than a dead board. |
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Are you using the -oh option? This should prevent you from unwanted kick-outs. Make sure you set the value high enough. Try 0.2 or so. I'm using 0.7 at the moment. If you don't set it, the boards get kicked out after 3 to 4 frequency drops.
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Lol you cut it with a so called glass cutter. It's a little wheel out of cemented carbide.
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"Bitcoinica caused much harm to the value of Bitcoin. They were targeted and destroyed. As sure as Bitcoinica fell, the value of Bitcoin rose. Profit from devaluation surely destroys a currency." AMEN  Who said that again? It sounds so familiar... |
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Whoa, 120MH/s? Are you thinking about sending it to Stefan for repair?
I got the offer but as long as the other chips work fine I keep it this way. It's not worth the hassle. |
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I will overclock them but I also want to get the most out of the software
You can switch to cgminer but I doubt that this will speed up your cards. Phatk is the fastest kernel for my 5850s. |
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What's wrong with overclocking ? I run mine at 860 and 850 MHz. That's not really hard for the cards. Some folks here run them over 900. You can lower memory down to 150 MHz.
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Let me get it strait. I spent quite some time with my quad and my single boards to find out the best way to cool them. It doesn't really matter if you blow them with a tiny 40mm fan direct on the heatsink or with one or two 120mm fans from above or from the side. It also depends on the heatsink. The "gain" between a 120mm and a well placed 40mm is ridiculous. But I wish everyone that wants to build the perfect case good luck  How many FPGAs do you have? Never enough only small numbers of different boards. So no big cluster to box in. |
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I have one Problem with my setup. Everything runs fine for some hours but the 2 or 3 FPGAs (of 10) get kicked out of BTCminer for "overheating" or "some other reason i can't identify".
The boards are cooled by stock Xilence or Titan heat sink.
If i restart BTCminer everything works perfect again
Its random and affects all units in the same way.
Does anyone have similar issues?
Quad or single boards ? Does this happen after connection issues ? I do have one sick chip that is down 90% of the time. But this seems to be more like a defective FPGA or a board problem than an actual overheating issue. I decided to use the quad as trio. Somehow I got used to the sexy yellow light Edit: You can try to set -oh to 0.5 or so to see how low the boards frequency will fall down. This way you are able to still use the chip in case something is wrong + it won't hurt because the auto downclock still works. That's why I like this boards so much. bus-0-0: ztex_ufm1_15d4-0001-02-05-1: f=208.00MHz, errorRate=0.66%, maxErrorRa
te=2.21%, hashRate=206.6MH/s, submitted 20 new nonces, luckFactor=1.16
bus-0-0: ztex_ufm1_15d4-0001-02-06-1: f=208.00MHz, errorRate=0.37%, maxErrorRa
te=0.95%, hashRate=207.2MH/s, submitted 18 new nonces, luckFactor=1.05
bus-0-0: ztex_ufm1_15y1-0001-02-07-1: f=212.00MHz, errorRate=0.39%, maxErrorRa
te=1.26%, hashRate=211.2MH/s, submitted 16 new nonces, luckFactor=1.12
bus-0-0: ztex_ufm1_15y1-0001-02-07-2: f=208.00MHz, errorRate=0.19%, maxErrorRa
te=1.72%, hashRate=207.6MH/s, submitted 20 new nonces, luckFactor=1.18
bus-0-0: ztex_ufm1_15y1-0001-02-07-3: f=120.00MHz, errorRate=0.00%, maxErrorRa
te=2.99%, hashRate=120.0MH/s, submitted 6 new nonces, luckFactor=0.87
bus-0-0: ztex_ufm1_15y1-0001-02-07-4: f=200.00MHz, errorRate=0.37%, maxErrorRa
te=0.51%, hashRate=199.3MH/s, submitted 9 new nonces, luckFactor=0.94
bus-0-0: poll loop time: 88ms (USB: 5ms network: 84ms) getwork time: 366ms su
bmit time: 373ms
Total hash rate: 1151.9 MH/s
Total submitted hash rate: 1226.0 MH/s |
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If you take that as some sort of "expert" knowledge, i wonder what your "common sense" is
Ever heard about "sarcasm" ? Let me get it strait. I spent quite some time with my quad and my single boards to find out the best way to cool them. It doesn't really matter if you blow them with a tiny 40mm fan direct on the heatsink or with one or two 120mm fans from above or from the side. It also depends on the heatsink. The "gain" between a 120mm and a well placed 40mm is ridiculous. But I wish everyone that wants to build the perfect case good luck @yohan looks great |
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Looks like some fools are still mining for them  |
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Typical "fan down" heatsinks are fail, too much turbulence to be effective cooling.
Real world experience or hearsay ? You sound like an expert but do you own a board so you can prove all your theories ? |
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Nice video ! The BitMinter software is porn. Looks like Doc put in a lot of work. Well done !
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