Question PC randomly shuts down after boot (before windows login screen)

[renzallday]

Hi! I'm having random turn offs/blue screens only during boot (before windows login screen) happens 3-5 times a week. PC is totally fine when I'm past the login screen even during gaming for multiple hours. The usual blue screen I get is the one with ntoskrnl.exe. I tried checking my RAM with memtest86, 4 passes all okay. I tried chkdsk, crystal disk info for my SSD, all okay no bad sectors. I also have the latest BIOS and drivers for my motherboard. So I don't know if this is a PSU problem. Please help me my computer is really new.

Btw, I'm using a 3 month old computer with these specs.
Ryzen 3 3300x
Zotac GTX 1650 super
16 gb 3200mhz Gskill Ripjaws V
MSI B450m pro m2 max
Crucial 500gb mx500
Bequiet system power u9 600W

 

[PC Tailor]

Welcome to the forums!

The usual blue screen I get is the one with ntoskrnl.exe.

The problem is it's not the ntoskrnl that's the problem, we'd need to know what bugcheck (BSOD code) you are getting.

So I don't know if this is a PSU problem.

It could be, the only effective way to test is to replace the PSU with a known working good quality unit and see if the issue persists.

Did you build this PC yourself?