5970*2 speed.
 

Hi,
i got 5970*2, and started at 6000-6400 m.hashes/s, but after a while, gpu 0 and 1's speed decrease to 400 and 800 m.hashes/s. i tried both win7 32bit and 64bit with different driver already. but it still got same thing....
Is that normal? or is there something wrong with one of my card?
plz help.
thx......
http://img195.imageshack.us/img195/5065/img0124mp.jpg

I think it s psu fault What psu used ? you need 1000w or more:)

We recomended 1200W

B R

i used 1000w. better change to 1200?

i use corsair 1000w and it works fine oc to 800 mhz....look and ur cards temperature....i think that could be problem if cards overheat they slow down

Processing IMEI: 358238033505805 [2 of 7]
HASH: E6A856C2DAAE68696136C536AB81D1A60843A7CA
Range: Manual , PC pcs: 2 , PC num: 1
brute mode: Linear
Device opened: 1
Device opened: 0
Device opened: 2
Device opened: 3
Calc.calibration GPU: 1... wait ...
Calc.calibration GPU: 2... wait ...
Calc.calibration GPU: 0... wait ...
Calc.calibration GPU: 3... wait ...
Calibration for GPU: 1 = 163
Calibration for GPU: 0 = 162
Calibration for GPU: 2 = 157
Calibration for GPU: 3 = 157
Steps remain: 1478918
Peak M.Hashes/s: 6988.91
Max calc.time: Days: 0 | hours: 18 | min: 15 [in hours: ~18]


800 mhz / card and a 1000 w

will the speed change? like how much hashes/s in total? will it keep staying in around 6988? my one drops to 2000-3000 some times even...

Man can you read advice from other ??
YOUR PROBLEM IS THAT YOUR CARD CATCH 95 degree and after this slow down use better case with more fan or use watter colling system.