Question getting driver crashes within 15 minutes of gameplay

[Philhalo66]

i have been getting GPU driver crashes, i have tested the power supply, another GPU (didnt crash but pulls 100W less power) i have underclocked my ram, my cpu and i have tried dozens of drivers i have reinstalled windows and ran memtest it passed without any errors. this is an RMA card straight from EVGA. I have a radeon R9 270x that never crashed ever but this 1080 ti cant go more than 15 minutes without crashing unless i underclock it 500MHz.

just now i installed an older driver, enabled XMP and unplugged a monitor with GSYNC and it did not crash, so i tested it with the monitor plugged in and it crashed. i figured awesome its a bad monitor. nope unplugged it and its still crashing like normal. why wasnt it crashing before?

 

[helpstar]

Which power supply, motherboard and CPU are you using?

Check temperatures of CPU and GPU

Use DDU uninstaller to remove all graphics drivers from AMD and nvidia. Reinstall the latest driver from nvidia.com

Which BIOS version is currently on the motherboard?