Originally Posted by Atomakis1992
Is there a way that I can unlock the voltage in my evga 770 2GB, SC with Acx cooler and dual bios? It's stuck in 1.212 mV.
I second this for EVGA cards. I've attempted the custom vBios for the second time from the front page yet I'm still only permitted to overvolt 12mV. I've tried Rbby's and Zawarudo's voltage mods with both the stock and custom vBios with no success on either. I've restarted my computer after flashing the custom vBios as well as reinstalled my graphics drivers (331.65) with no change in behavior. The only success I've seen is the change in the LLC status from 10 to 00 (though that didn't help with the voltage limitation).
I've looked at all of the vBioses from the front page with Kepler Bios Tweaker. What is being reported is that none of the vBioses show a higher voltage setting than 1212.5 mV. In addition, the max voltage setting is grayed out on all of the cards with about half of the cards having their power target settings grayed out as well. I thought I would also mention that the EVGA SC ACX vBios reports the same vendor, device ID, Bios version, and date as the Colorful vBios. May I get some feedback on all of this?
Originally Posted by werewulfking
I just built my first Sytem and wanted to start overclocking my GTX 770...Today I tried the modded bios but I am not able to reach the original boost clock that my card can reach.
What vendor (EVGA, MSI, ASUS, etc.) is the GTX 770 from? About the problem of the modded Bios not hitting as high of a boost clock as the stock Bios, I had that same issue with my GTX 770 when using the modded Bios from the front page. My guess is since my stock Bios is labeled newer than the modded Bios that it may have some slight improvements in stability.
I used MSI Afterburner as an overclocking tool and as judge what could run in my sytem I used Heaven.
Heaven is a decent test but I would recommend running a number of different programs (especially different engines) as stability in one application may not be stable in another.
Is it possible that another part of the system may hold me back like my motherboard? It was a very cheap one as I didn't expect to do much overclocking. Or is my Card just a dud where Overclocking is concerned?
If something else was causing the crashing when overclocking a GPU, my first guess would be the PSU. However, you should go into more detail as far as what's happening onscreen and whatnot so that others can better diagnosis the issue.