Issue with Ryzen 3900x

[thevoices]

Recently built a new system, fresh windows install, system will just shutoff this can be web browsing or playing world of warcraft, no BSOD nothing just off. 

Temeratures: CPU 40C, Motherboard 38C CPU Package 42C all stock settings powersaver. 

 

My Specs

• Windows 10 Professional 64bit
• Asus Rog Crossfire VIII Hero X570 (Bios 1302)
• AMD Ryzen 3900x
• AIO - Thermaltake Floe DX 240
• G.Skill Trident Z Neo 4x16GB DDR4-3600
• MSI 980 GTX x2 Geforce
• Sabrent Rocket Q 1TB NVMe "OS"
• WD 4TB x2 "Storage"
• Lepa MaxBron B1000

[Fasauceome]

4 minutes ago, thevoices said:

Lepa MaxBron B1000

That is a tier E on the local tier list, a definite do-not-use for a system such as yours. You should absolutely look to buy a new PSU. The thing looks not even close to modern anyway, if it was "ok" when it came out it's certainly no good after a few years of use