Used Aorus xtreme rtx 2080ti - running hot and crashing my PC. Has stopped booting, I changed the thermal pads and thermal paste, and it worked fine for another 2 weeks but is still crashing again (cheap ebay pads and paste)

I have since acquired a 3070ti and can't  be bothered trying to resolve the issue (runs very hot..)

**Sold as faulty, no warranty or returns**

**Relisted due to last buyer cancelling**

May be any easy fix, may need repair. Gl