Please help with a 780TI overclock using Evga precision.

[Footyslayer]

Hi everyone, I have decided that whilst I await the next lot of Nvidia cards I want to overclock my GTX 780TI.

I currently have the "Inno3D iChill GTX 780 Ti DHS HerculeZ X3 Ultra" card and it runs as stock...

Voltage = 1.175mV
Clock speed = 1085MHz standard but hits 1201MHz on boost
Memory = 1800MHz

I am looking at using Evga Precision X for the overclock and will happily settle at about 1200mV on the voltage. So I will be looking for a little guidance along the way if you all don't mind?

Firstly I have now added +25mv to the volts on evga precision but when under stress it still only shows 1175mv and not 1200mv, aIl I see there is overvoltage, overboost and KB Boost, which should be used for applying a voltage change?

Or with this card already being quite high on core and memory should I just leave it as it is? Oh and could the card be voltage locked at 1.175mV as when I try to add an extra 25mV on overvoltage when under stress it doesn't recognise the extra 25mV...

 

[nikoli707]

http://www.overclock.net/t/1438886/official-nvidia-gtx-780-ti-owners-club
use msi afterburner.

1.212v is your stock limit with the stock bios. 1.20v is a decent trade off to keep temps and noise in check, though you shouldn't have much problem running 1.212v if you want. you are still far from dangerous levels.

read the oc guide in there.

 

[Footyslayer]

Hi, I have used MSI afterburner also but even when adding a voltage increase with either software when running any tests to check stability the card doesn't ever show as higher than 1.175mV.

It's really odd....

 

[nikoli707]

unlock voltage control in msi ab settings.

 

[Footyslayer]

Thanks for responding, I have re-installed msi afterburner and made sure "unlock voltage control" is ticked. This hasn't helped though, I am still only seeing 1.175mV under load when I should be seeing 1200mV with my changes.

I have read that 780ti'S should allow you to go to 1212mV without having to mess around, I just can't get it to register my changes...

 

[nikoli707]

what are you using to read your voltage and clock changes?

 

[Footyslayer]

I have read all changes in GPU-z , MSI afterburner and EVGA precision X. All seem consistent with what they are saying...