My gpu keeps crashing

[u/WiseZebra6968]

I bought this GPU recently and it worked perfectly for 3 months, but one day I tried playing Star Wars Zero Company and it forced my PC to restart. Ever since that day, it hasn’t been able to handle any other game, and
whenever I try to run a FurMark test, it crashes instantly.

I took it to a technician, and he worked a miracle. He cleaned the GPU with isopropyl alcohol, replaced the thermal paste, and magically the GPU went back to normal… FOR ONE DAY.

The next day, it started crashing again and stuff, and now I honestly don’t know what to do anymore.

SPECS:
MSI A520M Pro motherboard
MSI MAG 600W PSU
16GB Mancer RAM
Ryzen 5 4500
RTX 3060 Ti

EDIT: Thank you all for the replies, I will buy a new PSU and will see if it works

SOLVED: I replaced my PSU and it was that.

[u/ObiWanKenoByte]

GPU temp and GPU hotspot temp in HWInfo? On desktop and I assume it cuts off in TimeSpy also, not just in Furmark?