Hi all,
 
A couple of years ago I bought a refurbished EVGA SuperNOVA 1200 P2, 80+ PLATINUM 1200W, Fully Modular, EVGA ECO Mode, 1 Year Warranty, Power Supply 220-P2-1200-RX and did not have any problems until a couple of months ago with the system just shutting down randomly. 
I went a good 6 weeks until a couple days ago without a shut down and now they're starting again.
Currently, as I type, I am running prime95 and furmark at their highest settings and nothing is wrong, but earlier today it shut down multiple times with just chrome windows open. 
x570 Aorus Master MB with 64Gb ram and a 3800x. No overclocking. It is running the XMP profile though for the ram.
 
Event viewer is always the same and from what I have researched, it points to the power supply as the problem because of the 0x0 bugcheck codes.
 
Is there any way to absolutely determine if the problem is the PSU versus the motherboard or something else?
 
Thanks!
-System
  -Provider   [ Name]Microsoft-Windows-Kernel-Power   [ Guid]{331c3b3a-2005-44c2-ac5e-77220c37d6b4}
   EventID41   Version8   Level1   Task63   Opcode0   Keywords0x8000400000000002  -TimeCreated   [ SystemTime]2021-10-26T19:27:42.8606180Z
   EventRecordID16672   Correlation  -Execution   [ ProcessID]4   [ ThreadID]8
   ChannelSystem   Computerdo0mAMD3800x  -Security   [ UserID]S-1-5-18

-EventData  BugcheckCode0  BugcheckParameter10x0  BugcheckParameter20x0  BugcheckParameter30x0  BugcheckParameter40x0  SleepInProgress0  PowerButtonTimestamp0  BootAppStatus0  Checkpoint0  ConnectedStandbyInProgressfalse  SystemSleepTransitionsToOn0  CsEntryScenarioInstanceId0  BugcheckInfoFromEFIfalse  CheckpointStatus0  CsEntryScenarioInstanceIdV20  LongPowerButtonPressDetectedfalse
   

Make sure nothing is overclocked.
If you have the ability to try the PSU in another PC then try that. 

No problem.

Sajin,
 
So the power supply stress test ran for a full hour, no problem.
Ran the RAM test and the system shut down... I know this is not an EVGA thing, but would you say that I probably need to replace the memory or reseat it or?
Thanks for your advice.
 
*steve
 

Sajin
Try running the occt power supply test instead of prime95 and furmark. Furmark will cause the gpu to throttle.



If the system shuts down during the psu test replace your psu.

I would try testing the memory with the other stick removed. If a stick is good and one is bad it could be a savings on having to replace two sticks.

Xmp causing a shutdown? Interesting. Glad you figured it out. 👍