So to make story short. I upgraded my CPU from 3700X to 5900X.With default settings it keeps crashing in games. When I'm turning PBO off in BIOS and set clocks manually to 4.6ghz it working flawlessly no crashes, as soon as i turning on PBO in BIOS it crashes at random times in games only. I tried everything now including putting it to my sons rig and it has same issue so all my rest of the components are defo not the issue. Before anybody will say stuff like parts or overheating that's not the case as my processor temps in idle is 32 and under full load is 67.Graphics card full load is 66 junction temp is 89. I think it is chip that its defective. Anyone any thoughts or do i need to RMA my processor?
My rig specs
Ryzen 5900X
Gigabyte B550 gaming X V2
16gb CL16 3600mhz Kingston Beast
XFX RX6800XT MERC 319
1000W gold ANTEC fully modular gamer edition power supply
NZXT KRAK X73 AIO cooling
M.2 2tb PCIE 4
m.2 1tb PCIE 3
Gamemax Abys TR full tower
loads of fans in case.