Nvidia GTX 780, Over Volting Safe ?

[Dicehunter]

Is an over volt of 38mV safe ?

So far without over volting my core jumps up to 1019 in stress tests, That's with only maxing out the temp and power sliders, Going to see if I can get 1200+ stable

 

[tinytomlogan]

Thats out of Nvid spec. Ive not done it in the reviews and it will reduce life span.

 

[Vicey]

I wouldn't recommend it. In Anandtech's GTX 780 overclocking overview yesterday they increased power consumption by 60 Watts just by moving the temperature and power sliders. They felt that they had hit the top end of what the card could do without going outside of the power specifications.

Here is the article: http://www.anandtech.com/show/6980/nvidia-geforce-gtx-780-overclocking-results

TL;DR they were able to surpass Titan stock performance with an overclocked GTX 780 without adjusting voltages.

EDIT: Actually after looking at that page more closely their card did increase voltage as they raised the thermal and power limits but I believe that is the card itself increasing its own voltage and not a voltage offset they manually entered, I could be wrong though.

 

[Dicehunter]

Just got rid of the overvolting, It dropped the core by 10mhz and temps went down aswell, Adjusted it back up via the core slider and now I'm at 1202/3206.
Still testing on Heaven, Valley, Stone Giant, Batman Arkham Benchmarks, Battlefield 3, Crysis Series *Yes all of them * and pretty much every game Benchmark out there to make sure it's stable, A little OCD I know but I like to call it OC................3D...........*Cough Cough*
Anyway, So far I've done 6 runs of heaven with zero glitches and good temps

 

[Vicey]

I'm so jealous.. my GTX 780's don't arrive until 7PM tonight according to DPD.. le'sigh

 

[Dicehunter]

I'm so jealous.. my GTX 780's don't arrive until 7PM tonight according to DPD.. le'sigh

Worth the wait bud

 

[Cru]

now I'm at 1202/3206.

are you running on air? if yes what temp?

 

[Dicehunter]

are you running on air? if yes what temp?

Yes I'm on air, Temp was 64'c and fan was at 69% *Custom fan curve*

 

[Cru]

Yes I'm on air, Temp was 64'c and fan was at 69% *Custom fan curve*

not bad, gotta do some overclocking with mine as well

 

[Dicehunter]

Just did a few runs of the Tomb Raider bench, This is at max settings but no aa at all.

 

[Vicey]

Are those results a big difference from your GTX 680?

 

[Dicehunter]

Are those results a big difference from your GTX 680?

My minimum has gone up from the mid 20's to 56, Average from the mid 60's to 86 and maximum from 103 to 118 so bearing in mind its optimized for the 7xxx series it's a nice little boost

 

[Dicehunter]

Thats out of Nvid spec. Ive not done it in the reviews and it will reduce life span.

You sure Tom as I just had a good chin wag with an EVGA employee and he said the "38mV" that you can increase in EVGA's Precision X is still within Nvidia's spec range

 

[Kaapstad]

You sure Tom as I just had a good chin wag with an EVGA employee and he said the "38mV" that you can increase in EVGA's Precision X is still within Nvidia's spec range

It should be, as it is NVidia who provide it.

What should be remembered is any overvolting can shorten a products lifespan. If you are going to do it, keep the GPU as cool as possible - heat is the killer.