Hello, lately i have had a problem with either my GPUs or Nvidia drivers, i have been trying to overclock them to get a little more performance, bit whenever i am increasing anything in precision X the drivers crash when stress testing or playing. Sometimes it passes my stress test and crash in-games, sometimes it crashes on stress testing.

I have been thinking it is a problem with the drivers, but i read something about maybe updating my bios on the GPUs. I don't know this well enough so i ask here.

Thanks


Specs:
i7 6700k 4.5Ghz
Evga Geforce gtx 780 SC acx x2
Asus rog ranger z170

After some time i have been testing different clocks, it seems nothing will be stable. I added +50 core clock and stresstested it and it dident crash at all, but when i played a sertent game(don't remeber what atm)My pc just froze for some wierd reason. Seems like it only happens when i am gaming at this point. So i dont know what to do in this case.
 
I have also noticed that my main card in my SLI setup is running very hot, 80°C under stress. Isen't that alot? so i tryed to switch compound to see if it would help me with the temps and it only did for idle temps.
Original thermal compound:
idle temp: 50°C 
under stress: 80°C 
 
Cooler Master E1 IC Essential thermal compound:
idle: 41°C 
under stress: 80°C 
 
I am thinking it is my airflow, becuase when i take of my sidepanel temp go down to 71°C  under stress so.

Agree with Nemesis