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1  Alternate cryptocurrencies / Mining (Altcoins) / Re: Best Hash/Watt GPU Setup, Undervolting on: February 12, 2014, 09:32:08 PM
just some updates:

I tried 280x, 290 and going for 270 now..


290s/quad-aircooled
have a quad 290 in a raven rv03 air cooled... it gets hot, but it works (but I would say close to the limit). heat really increased power draw.
in windows (with every card maxed to 895-905kH and reduced voltage as much as stability allows) the rig draws 1350W (1320-1400W) and over 1500 when not undervolted.

so for now I keep that one on windows ;-)



280x
best efficiency so far is with a 280x (sapphire toxic) at 757kH (1089Mhz, rest is standard 280x settings). i undervolted it (kinda tricky, as it comes stock at 1100 clocks and high voltage (power draw monster!!!). undervolted it draws ~220W (card alone), which is around the best kh/watt I have seen on the net!


270s
i am going to try some 270s now, the idea is to squeeze them between 290s to get airflow/temps a little bit more under control, and also running more efficient (also moneywise) maybe on smaller PSUs.
btw. 1500W Enermax Platimax is just great!


anybody running a quad 270/270x setup? or has anybody modded/undervolted 270s for best hash/watt?




HI,

Can you post the setting for the 280x?

Thank you
2  Alternate cryptocurrencies / Altcoin Discussion / Re: WTS 500 RIECOIN @ 0.01BTC each on: February 12, 2014, 08:07:54 PM
hi. How can I mine this coin?
3  Alternate cryptocurrencies / Marketplace (Altcoins) / Re: [WTS/WTB] [VTC] Vertcoin - tradin on: February 04, 2014, 05:28:48 PM
WTB vertcoin, I will pay with paypal, send your offers.
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