Originally Posted by cephelix
Very nice OC...will try tmrw then.too late/early to do it now depending on how you look at it.It's 3am here.....
Another qn though before i go, how large of an increase to voltage do i apply at each step?
Thank You I did spend a substantial amount of time benching, but the fact is undeniable that I got a winner in the silicon lottery.
If you look in my build log I have a spread sheet showing each voltage increase with what clocks I was running, and I usually noted what the issue was. I personally only make small jumps in voltage, 8-10 mV each time the card starts to act up. I then push as far as I can with that voltage and the process starts all over. Memory clock is nice, but for these cards core is definitely king; I would be more concerned with your core clock first. In that spreadsheet I mentioned there is a tab showing the performance gains from running stock RAM clocks to my VERY high 1700MHz OC, and depending on what you're doing the gains are not that substantial.
I like to make the small jumps in voltage because one of the combinations of voltages/clocks you find will end up being the 'sweet spot' between performance, voltages, temperatures and clock speeds.
I finally settled with 1200/1500 +87mV offset as it gives me 90-95% of the performance I was getting from ~1300/1700 +200mV. The card was fully functional at, or very close to, 1300 core but the additional heat and abuse to the card were not worth the small performance gains it was giving me.
*EDIT* One thing I just remembered with Trixx voltage settings. It doesn't always apply exactly what you move the slider to. For example you will move the slider to say +70mV, but when you apply it may move up or down a couple mV, say to 68 or 73. I don't know why it does this, but I have heard others mention it. Just bump a couple extra mV if you need to get the voltage increase desired.
Edited by Roboyto - 3/29/14 at 8:03pm