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Is my GPU limited by voltage?

post #1 of 6
Thread Starter 
I cant pass over 555/750 on my 7900GT... cause I get artifacts... but my temps are 70C load...

So i think... is my voltage limiting my overclock?
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Katrina2
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post #2 of 6
It could be the temperature. based on this review, you can get it to around 800 memory and 600 core, so you're close. Can you "change" the voltage on that card? I only know of volt mods for the 7900gs, but havent seen any examples for the 7900gt
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post #3 of 6
If its at 70C i wouldnt really up it anymore
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post #4 of 6
Try increasing the voltages via BIOS or physical volt-modding. See if it can OC any higher.

The cause of all overclocking limits is electromigration.
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post #5 of 6
before you even think of volt moding, I think you should consider Optimizing your cooling solution. Try to get temps at around 60 degrees on your GPU before you start overvolting
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post #6 of 6
Quote:
Originally Posted by DuckieHo View Post
The cause of all overclocking limits is electromigration.
Nah, that's the cause of chips dying with increased voltage levels. Overclocking limits are caused by transistors being unable to switch fast enough
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