System Shutdowns - Is it the PSU?

aviationjames · July 1, 2015

Here is some logs from the Event Viewer:

1) "The system is entering sleep.

Sleep Reason: Application API"

2) "The system firmware has changed the processor's memory type range registers (MTRRs) across a sleep state transition (S5). This can result in reduced resume performance."

3) "The process C:\Windows\system32\winlogon.exe (JAMES-PC) has initiated the power off of computer JAMES-PC on behalf of user James-PC\James for the following reason: No title for this reason could be found

Reason Code: 0x500ff

Shut-down Type: power off

Comment: "

Why is the Computer shutting down without reason?

Also as I previously mentioned in another post, that my PSU has some coil noise when the fan is on.

Lord_Karango17 · July 1, 2015

When does it occur?

PSU shutdowns are generally pretty sudden, and the system should not be able to detect it.

Also if it is because of the PSU, then it will likely only happen when the system is under load, so when playing games, or doing something that taxes both the cpu and gpu

aviationjames · July 1, 2015

When does it occur?

PSU shutdowns are generally pretty sudden, and the system should not be able to detect it.

Also if it is because of the PSU, then it will likely only happen when the system is under load, so when playing games, or doing something that taxes both the cpu and gpu

It happened when the computer was idle. It was a standard shutdown.