MP 1,1-5,1 Sometimes a restart when selecting shut down

[TzunamiOSX]

I have a problem with the shut down.

Sometimes when I select shut down the MP5,1 is making a restart, not a shut down. Looks like this problem is only present when log in to the account. When stay in login screen the shut down work without problems.

Anyone who has this problem too?

Software or Hardware problem?

 

[tsialex]

I have a problem with the shut down.

Sometimes when I select shut down the MP5,1 is making a restart, not a shut down. Looks like this problem is only present when log in to the account. When stay in login screen the shut down work without problems.

Anyone who has this problem too?

Software or Hardware problem?

This can be caused by the RTC battery low voltage, check it and replace the BR2032 if below 3.0V.

Yes, I know that is weird, but when macOS is storing the current date to the RTC to adjust the RTC clock drift, the RTC counters are stuck and the operation fails and a reset/crash happens.

There are other motives for the restart, I'd start with RTC battery, then a clean install on an empty disk to check for software problems.

 

[TzunamiOSX]

This can be caused by the RTC battery low voltage, check it and replace the BR2032 if below 3.0V.

Yes, it's I know that is weird, but when macOS is storing the current date to the RTC to adjust the clock drift, the RTC counters are stuck and the operation fails and a reset/crash happens.

There are other motives for the restart, I'd start with RTC battery, then a clean install on an empty disk to check for software problems.

Possible, it is the first battery. I will test it.