Vayne4800
I haven't because I need the latest drivers as I have been exclusively playing MGSV this past few days. I also do not believe in going back to older driver versions generally. Pretty sure NVidia will roll out new drivers to sort out the OC stability issues caused by the recent versions.
 
So far, I have been running stable with zero crashes/TDRs @1480Mhz/7800Mhz/+12mV on my Kingpins in MGSV for 20 hours and counting. It isn't a demanding game but I do run it with DSR 4k to put some work on the GPUs a bit. Will update when I move on to another game.
 
I hope that when better drivers come out, I can hit 1506Mhz/8000Mhz/0mV. If not, I can accept the current OC as it is.

Sajin
I doubt it's a driver error. For gaming I would just leave the card at stock clocks & voltage. If you need more power for gaming go SLI. The FPS increase you get from overclocking the GPU isn't worth the decrease in stability, all games will use the GPU differently, you will find yourself constantly having to adjust the clocks to maintain stability depending on what game you are playing. Not worth the hassle at all for the very minor FPS increase you will receive.

Perfect example: http://forums.evga.com/tm.aspx?m=1990970

Vayne4800
Now what is causing these instabilities is a major mystery that no one managed to answer.

Vayne4800

Sajin
The answer to this question is simple. The owner of the product is who is causing the instabilities by overclocking the card too high and expecting it to perform at those overclocks in every single game. The card boosts to 1404 out of the box and is stable right? The difference between 1404 & 1450-1500 is gonna be nil, you won't even notice the difference unless you're benchmarking.

So are you telling me, that every owner of a 980 Ti Kingpin, can't game over the stock boost clocks in every game? If that is a known fact, I will accept your argument.

Vipergtspa
1455MHz is what I use for gaming.
I could use a higher OC around 1506MHz and be stable in most games, but there is not much of a performance increase though and not worth the trouble.

Vipergtspa

Vayne4800

Vipergtspa
1455MHz is what I use for gaming.
I could use a higher OC around 1506MHz and be stable in most games, but there is not much of a performance increase though and not worth the trouble.

You see, in the past, people considered a good overclock as one that is absolutely stable everywhere, assuming all games tested have no issues themselves. Now, with no intention to offend you, you mention that you can OC to 1506Mhz and be stable in "most games" is just really a proper OC answer. Sadly, I don't know what happened in the last ten years. With that said, I have dropped my OC to 1455Mhz as well with memory at 7800Mhz and will keep testing it via normally playing Witcher 3 and Batman AK. At overclock.net, they mention that to be stable at +1500Mhz on air, temps need to be between 50-60C which IMO is quite a challenge to achieve in a case. As most who are able to do that are doing it outside a case. I still have the option to re-apply TIM but will investigate that when I have more leisure time. For the record, I am still keeping that +12mV overvoltage despite a lot telling me otherwise.
 
I wish there was a be all end all test that can tell you what is the most stable OC. The old days are behind us when we actually were able to do that.

I suppose I should have worded that different.
1455MHz is what I use for gaming.
I could use a higher OC around 1506MHz and be stable in every game I own, but there is not much of a performance increase and not worth the trouble if it becomes unstable in a new game later down the road.
 
1531MHz is the best I can get with my two card's when benching, which I am happy with. It really come down to my second card not being able to push past that, one card will hit the 1550MHz range alone.
 
75C or lower (top GPU) would be my target temp for high demand gaming.

Sajin

Vayne4800
Well mate, I never exceed 75C. I ran Fire Strike Ultra for 30 minutes loop and my profile keeps temps below 75C. Yet in games, so far, I run 100%/+50/+350/+12mV. What you think is holding me back?

Silicon lottery.

Vipergtspa
Do you know what each card can do when ran one at a time ? I would try a lot of game and bench mark testing one card at a time. Then once you know what each card can do, go back and do them together.
Mine are about 20MHz apart on what they can OC to, they are 75.1% and 75% ASIC.

Vayne4800
I know you asked me to do that multiple times before. It just seems like a redundant step to me.