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undervolting a 7870

post #1 of 4
Thread Starter 
So I've read around about some people undervolting while maintaining some decent overclocks on their cards. I wanted to try my hand at it with my Gigabyte 7870 for curiosity's sake. At the moment I have my card overclocked to 1200/1450 on stock voltage (1.219mv). I wouldn't mind lowering those clocks a bit to see if i could undervolt successfully if needed. So my first question is, is it dangerous to undervolt while maintaining an overclock? My second question being, by how much should I lower the voltage by at a time to test for stability? Also, will it reduce temperatures by as much as I've heard (not too worried about temperatures just interested)?

Thanks tongue.gif
Edited by seryou92 - 6/11/13 at 11:40pm
post #2 of 4
There isn't anything dangerous about undervolting, you're just going to potentially run into instability. I would lower it by 10mv increments until it becomes unstable. It will reduce temps, but it also depends on your cooling and airflow.
post #3 of 4
Thread Starter 
Cool thanks for the info. I did get my voltage down to 1.188 at 1170/1450 where as that would crash my 1200/1450 but the tradeoff wasn't worth it. The temperatures dropped by 1c which I don't have a problem with anyhow so why bother. Oh well, just wanted to try my hand at undervolting. Thanks again. biggrin.gif
post #4 of 4
Quote:
Originally Posted by seryou92 View Post

Cool thanks for the info. I did get my voltage down to 1.188 at 1170/1450 where as that would crash my 1200/1450 but the tradeoff wasn't worth it. The temperatures dropped by 1c which I don't have a problem with anyhow so why bother. Oh well, just wanted to try my hand at undervolting. Thanks again. biggrin.gif

No problem! thumb.gif
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