I bought a Radeon RX5700 xt like 10 days ago, the first day I installed the card on my pc was working fine...for 4 min, the it shut down. temperatures were normal so I though probably is my 500w power supply so I bought a 750w but its still shuting down my PC. I updated my bios, installed windows again, i'm even considering buying a motherboard with pci-e 4.0 support but I have no Idea what else could be. I've seen other forums with the same problem but non of them have an answer, I really hope it's not a bad graphics card.
PC's specs:
-Asus b350m-a motherboard
-AMD Ryzen 1700
-XFX Radeon RX5700 XT
-Ddr4 Kingston Hyperx Fury 8gb 2400
-EVGA N1 750w power supply.