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I know a forum member that has ordered a BFL 50 GH rigbox. Perhaps he wants to out himself (not gonna do it). I'm sure he will give a review once he got it running. If you aim for 50 GH a rigbox will be cheaper than singles and GPUs.
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Back on track  |
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Eclipse Mining Consortium  |
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Looks like i have to upgrade soon  . Yes, time to upgrade These little suckers are awesome. I wonder why the boards only run at 208 MHz, Here at 65 degree the slowest board runs at 208 and the fastest at 220. Most do 212. Perhaps you can try to cool them down more ?
Yeah, ztex noticed it too. I haven't really work on the cooling yet. Maybe still stuck in the mindset that 60 degree C is cool. I have some old Silverstone 120mm fans that I plan to use for some airflow. Do you notice any difference if you have air flowing through the bottom of the boards? I also have a habit of putting on too much thermal paste so I might re-apply to see if it makes a difference. I am content with the hashrate though as long as it runs stable. It's middle of winter and it is already 85 F outside. And SCE charges an arm and a leg (12-30 cents/kwh) so AC is a hard pill to swallow. If you can cool the heatsink from the side you should be able to see a difference. Best would be a 80mm fan behind every board for max effect. Heatsink placement can be a b!itch. I would start with the boards with the highest error rate and re-grease them to see if something changes. At 200 MHz you should not see any errors. Be carefull with the plastic pins ! I broke one off on my first board when i replaced the pad with thermal grease. |
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Wow, 20 boards... very nice. Looks like i have to upgrade soon . I wonder why the boards only run at 208 MHz, Here at 65 degree the slowest board runs at 208 and the fastest at 220. Most do 212. Perhaps you can try to cool them down more ? Replaced all my fans on the 1.15x boards with Scythe Kaze minis. They are a bit less effective since they run at 3500rpm, but they are very quiet. Lost 4 MHz on one board, the others have a bit higher error rate. |
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Somehow i can't use d3a with my 1.15d boards ? d3 works... Edit: User too dumb it works ! |
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Fucking kid ?  What a brat... |
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Received my 20 BTC  Thank you Thiago |
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Turbor wins this one for 9BTC. Congratulations!!! Payment sent. Thanks Dave |
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If someone wants to take my spot it's fine. I check back in i 6 hours to either pay the 50 btc or what is still open by then |
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I can give you 50 BTC. I am at work so in about 6 to 7 hours. Would be nice when you have set up the miner for the repayment of the 20 BTC by then
Sure, I already have 7 BTC of those 20. Within a day or two, I'll repay your 20 BTC. I'm working on it right now.  I just move all my miners to Bitcoin P2Pool, the coins are just arriving from my new pool... Last week the EclipseMC suffer with bad luck... :\ If you really want, I can point my miners to you as we already did in the past, no problem. Thanks!! Thiago Hi, it would be nice if you can mine the coins back at bitminter. If it's too much trouble you can use the eclipse account. |
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I can give you 50 BTC. I am at work so in about 6 to 7 hours. Would be nice when you have set up the miner for the repayment of the 20 BTC by then
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Turbor, you are the next!! Good to hear. Can you point your miner to BitMinter for repayment ? Same address as last time, with a new account ? We could use the hashing power Thanks Sam |
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where did bossland go?  115% ? |
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Yes Turbor I think it will. It is symmetrical and lines appear all nice and parallel. With a stone like amethyst there is not as much pressure for the cutters to retain weight from the crystals as they are modestly priced and widely available. You are more likely to get a really fine cut on a stone like that.
Can he keep up with the rhodolite in cut quality ? |
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Will the cut quality meet my high standarts ? |
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I run a single 1.15x board for testing, it usually displays high speed mode failed, like this: ztex_ufm1_15d3-04A32E00E9: New device: bitfile=ztex_ufm1_15d3 f_default=200.00MHz f_max=240.00MHz HpC=1.0H
Warning: High speed FPGA configuration failed, trying low speed mode:Claiming interface 0 failed:
libusb0-dll:err [claim_interface] could not claim interface 0, invalid configuration 0
: Trying low speed mode
ztex_ufm1_15d3-04A32E00E9: FPGA configuration time: 7645 ms
ztex_ufm1_15d3-04A32E00E9: Set frequency to 200.00MHz
Disconnect device or press Ctrl-C for exit
I get the same warning on my 4 board cluster everytime i start the miner. Not really a problem but what is the cause ? With the other boards i don't see this. |
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It's a small board with a special (FPGA) chip on it. You connect it via USB to your PC and feed it with 12 Volts. The bitstream is loaded to the FPGA via USB. Ztex has an easy to use software ready. The main advantage a FPGA board has over a graphics card is that i uses a lot less power. About 30W (3 ztex boards) compared to 200+W for the newest GPU for around 600 MH/s. You can make about 20 to 30$ per month with 250MH/s without power cost ! Most boards won't run that fast with one chip.
For questions about FPGA itself you should ask people like ztex, rph, eldentyrell or artforz.
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You are running them in cluster mode, right? I am just wondering if you'd run a single one if you'd also end up with 50% CPU usage.
I still haven't gotten around installing Ubuntu and it will probably take a while till I have the time.
I did run them alone. AMD duo core and Intel Core2 Quad Q6600. Never had high CPU usage. Only from my GPUs. |
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