Hello , got custom built pc 3.5 years ago with EVGA GeForce(R) GTX 1070 Ti ACX Gaming Dual Fans 8GB.
Had no issues for few year playing games , but now with high demand gpu games pc crashes. 
 I know its gpu since pc work fine otherwise.
Was monitoring temperature with Precision and it usually never gets above 65 degrees , although when it crashes gpu is very hot. (i'm pretty sure its a lot hotter that 65 C)
Both fans spinning, but at about 60  degrees grinding noise appears. It takes about minute before it crashes.
  Any ideas?
PS i used ddu to cleanly install new drivers.
 Thank you and hope I didn't start another unnecessary topic that has been answered.