Weird, Stable Recurring AMD Host Failures

[asuka117]

If left unplugged for a week (occasional recurrence), or completely unplugged from power to the computer for a few minutes (steady recurrence)
The computer will not start normally, and the LED display is CPU failure at this time.
But there is a very bad workaround, force disconnect the power, connect it after one second, the computer will boot itself, no blue screen crashes during use, and no problems.

This problem was discovered when I accidentally disconnected the power and moved the computer to the bedroom.
Does anyone have an idea? I can't troubleshoot this problem.

Computer hardware:

CPU:Ryzen 7 5800x

GPU:AMD RX580 8G

Memory:Corsair VENGEANCE RGB PRO SL 16GBx2

PCIE:Dell H200E HBA Card

Disk：PLEXTOR M10P 512GB

[asuka117]

I have tried to reinstall the memory, CPU, GPU and other operations, and I have also tried to update the BIOS, but it still cannot be solved

[SkylarHasMail]

7 minutes ago, asuka117 said:

Try moving it back to the other room, Sounds dumb but ur bedroom outlet could have horrible power. Only other guess is in moving it something got knocked loose so I'd reseat everything and try to isolate the issue. Hope that helps a little. 

 

[PDifolco]

Reset CMOS as well, that can't hurt

[asuka117]

3 hours ago, SkylarHasMail said:

 

No, it doesn't work at all, originally this computer has been sharing a Schneider Electric UPS with my Dell R730 rack server. This problem is also reproduced on UPS.
This UPS is a sine wave, Line-interactive UPS

[asuka117]

2 hours ago, PDifolco said:

Reset CMOS as well, that can't hurt

No, completely invalid, even with default BIOS settings, no overclocking, no XMP, no PBO can still reproduce this fault.