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Safe 24/7 Voltage for TWO HD 7970s in Crossfire - Page 2

post #11 of 14
The top card is starting to get pretty toasty, I wouldn't push it further. Nothing dangerous, but it's hitting the comfort zone IMO.

Yeah, those color anomalies you're describing are artifacts.

I don't know if this is how you've gone about it already, but always overclock the memory and core seperately so you can pinpoint the cause of instability.
post #12 of 14
I dont think memory causes instability. If memory is not stable you will get some colored screen and everything will crash.
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post #13 of 14
two 7970's? That's alot of GPU's lol you'll probably want to get a WaterBlock
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post #14 of 14
Thread Starter 
Quote:
Originally Posted by RavageTheEarth View Post

I guess it's ok, but if you run temps like that every day your cards won't last as long as one with the same temps and voltage, but with lower temps. Try lowering the memory voltage down to 1.5v and lower the overclock down to 1500Mhz. Those colors sound like artifacts from a too high memory OC

Oh... How do I lower the memory voltage in AB? redface.gif
Quote:
Originally Posted by Fulvin View Post

The top card is starting to get pretty toasty, I wouldn't push it further. Nothing dangerous, but it's hitting the comfort zone IMO.

Yeah, those color anomalies you're describing are artifacts.

I don't know if this is how you've gone about it already, but always overclock the memory and core seperately so you can pinpoint the cause of instability.

Yeah, I want more performance out of them but I know that the temps are at their limit so I won't push any further. I um.... OC'd both at once, but I just dropped the memory clocks down a bit back to where they were when I was certain it was stable.

Oh and, I would water cool, but I have no idea how to set up or maintain so I'd rather not take the risk... Nor do I know anyone who does frown.gif

EDIT: Ok, I dropped 10mhz off the Memory clock and my temps dropped considerably.
http://puu.sh/35D9W.png
Is this a lot better?

EDIT2: http://puu.sh/35F1n.png 6.7GHz redface.gif
Edited by Evanlet - 5/31/13 at 9:47pm
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