Help pc please
I built a pc with parts straight from facebook my pc just ramdomly crashes and restarts then tries to repair but fails often i have to go into bios and i switch the boot order over and over again just so i can go back then it boots back into windows and im good for like 10-15 minutes then it crashes over again. I bought the motherboard off FB its a Z790m- Itx wifi board. The CPU is i5-13600k. The gpu is a Eagle Gigabyte 3070 8gb, my ram is ddr5 GSkill flare. those previous parts were all bought off FB marketplace except My PSU which is a thermaltake 850w.
i monitored the cpu and gpu usage and its at high rates but the temperature for both of them is around 40-50 for the cpu and 55 for the gpu. one of my usb ports doesnt work.
can someone please help me (is it a motherboard issue?) i dont wanna take it to a tech service cuz imma waste a bunch of money does anyone know if its motherboard or if its something else?