Overclocking my GTX 780 Lightning. Need Help

[ImSalvatic]

I'm using MSi Aferburner Beta 16 and the 331.82 Nvidia Drivers on my brand new GTX 780 Lightning. The Asics value is 65.4 % which is average i guess.

Anyhow, yesterday i ran Unigine Heaven benchmark and for every time i passed it I would increase the Core Clock by 10mhz. I ended up at 1150 Core Clock and 1502 (stock) Memory clock before Unigine Heaven crashed and I got a score of 1426 on all ultra presets.

My 3DMark Score was 9.2k or something similar with a small overclock. Anyhow, I wanted to push my Lightning to at least 1200 Core clock so i increased the voltage to +62 and powerlimit to 109%. I still couldnt get Heaven to not crash. I started using 3DMark instead then but that won't work either now, it starts up the first Demo then its crashes and says "an Unkown error occured, line 313, DirectX11 Diag call failed" or something similar.

How do I make 3DMark not crash and how can I push my Lightning further?

Any help would be much apprecieated

 

[ihog]

To make 3DMark crash at those clocks, and to be able to push your card further, you need to increase the voltage more (note that core and memory clocks have difference voltages). Whether that's safe or not is up to you.

 

[saint19]

Hi and welcome to Toms forum.

Your reference clock is 980MHz and you want 1200MHz, that's really difficult to do on air and those little increase on voltage. In that way, you can change the GPU to LN2 mode BUT remember than that option is up to you.

Now, you GPU isn't only limited by voltage it's also limited by temps, so, keep in mind the max temperature that you get on load. What temps are you getting now?