Idle it's 0.900, when I run a game it goes up to 1.200. So you can just OC it 0.05V?
0.05v seems small but it's pretty big though. i'm running on a tad lower voltage at load though of course my video card has a higher binned GPU chip so doesn't require much voltage for it to be stable at 1200/5400 speed
Now a little headache, once in a while when I boot up, my Windows desktop becomes all weird, the screen starts to flicker and the mouse moves slow. Does this have something to do with the OC? Other time it goes just well...
The unstableness only occurs when on idle overclocked:
GPU Core: 300Mhz
GPU Memory Clock: 150Mhz
VDDC: 0.900 V
Strange I restarted my PC with no oc and the voltage is 0.825V standard on idle. So the issue only occurs on different voltages, like 0.900 V...
One other thing overclocked in CCC max 1300Mhz memory clock and core 1100Mhz the voltage returns to 0.825V after exiting a game. So is the issue Afterburner or that I go above the limit 1300Mhz which I can do in Afterburner even if I have the same clocks in Afterburner as I had in CCC < I found the override box in GPU Tweak so I'm going to try with that one now instead of Afterburner...
The issue seems to come with Afterburner, as Afterburner raises the idle Voltage to 0.950 on idle. I don't know if I can manage the idle and load voltages another way? Or how I can try with Asus GPU Tweak to see how it handles it. The only problem with GPU Tweak is that it too is limited to 1300Mhz.
Solution is to use Asus GPU Tweak, works flawlessly.