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1064
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Bitcoin / Mining / Re: BTC Price drop, huge cut in Pool Hash Rate
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on: September 09, 2011, 07:11:24 PM
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If you are only in bitcoin for profit, you should turn off ur rigs when your electric cost exceeds the value of BTC produced.
If you continue to mine, thinking bitcoin will increase in value in the future, you would be better off just buying it outright.
Buying BTC at below your production cost will save you some $, and at the same time raise the price of BTC.
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1068
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Other / CPU/GPU Bitcoin mining hardware / Re: Multiple power supplies.
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on: September 09, 2011, 03:13:52 PM
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I got a gigabyte that wont accept more than 3. Gigabyte are a load of rubbish. I found perfectly good MSI boards with 'military' grade for £45 and they dont wimper. All my gigabytes are iffy in some way or another. AVOID is my advice. MSI seem to be best boards but thats not suprising. Maybe not as good as they used be but towards gigabyte its like comparing a coke to a 11p asda(wallmart) special
Well I have a gigabyte mobo with two 16x slots and two 1x slots. Will test if it takes 4 gpus. |
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1069
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Other / CPU/GPU Bitcoin mining hardware / Re: Multiple power supplies.
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on: September 09, 2011, 01:47:40 PM
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I tried and it didnt work, later i found in manual and on official page that it supports upto 2 crossfire..
You shouldn't be using crossfire for mining anyway. The cards should just be running standalone. Crossfire doesn't help and I've read some reports here it reduces hash rate - though I've never tried it to see. In the specs it says that the two x16 will use x8 mode if both are installed but that shouldn't prevent them from working for mining and the x1 should still work. It supports up to 2 GPUs in crossfire. But mining does NOT require crossfire, thus the limit is not an issue for you. |
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1070
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Other / CPU/GPU Bitcoin mining hardware / Re: Multiple power supplies.
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on: September 08, 2011, 08:48:01 PM
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ok, so my 5830 didnt die after all. it seams that my mbo ( http://www.gigabyte.com/products/product-page.aspx?pid=3901#ov ) doesnt support 3 gpus... but i dont get why it has 3 pciex slots ... i feel realy dumb now.. anyways i setted up 2x psu system with dummy load on 2nd one of 6x 75ohm resistors connected serial to get 450 ohm on 3,3v rail @ 0,024w . on 5V i placed a small fan @ 0,6 w. that works perfectly. 3rd gpu i removed and will put in 2nd rig aparently, still cant believe about the mbo...  Where does it say it doesn't support 3 gpus? |
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1074
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Other / CPU/GPU Bitcoin mining hardware / Re: Multiple power supplies.
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on: September 06, 2011, 08:33:35 PM
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but the price is kind of high... Ebay, £3.36 for x1 to x16 extender. Cant find power molex on ones for less than 8-10 quid though. Cablesauraus is having a laugh. Making pure $$$$$$$ So easy do and no ones doing it no where. Go east, all im going say  This thread is about chaining two PSUs. NOT about PCIE exenders |
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1080
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Bitcoin / Mining / Re: FPGA boards are here
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on: August 23, 2011, 02:12:57 PM
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As much as we're going to continue seeing hyperinflation making the world fiat money useless I think that there is a bubble in gold that will burst at some point. This is the perfect opportunity for cryptocurrencies to take the lead with the simultaneous bursting of both gold and fiat bubbles.
There is no bubble in gold. It might slid off a big these coming weeks, but that is due to the massive 16% increase this month. Gold is definitely headed over $2000 long term. |
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