Intresting boot problem

Well boot is kinda not the right term...

Replaced power supply in computer...

Boots great...
Runs fine..
No issues...

Turn off computer...
Turn on works fine..

Test reset switch...
Works fine..

Shut off computer for night...

Next morning...

Turn on...

Get BIOS beep... Then the computer powers off... (ATX Mobo)..

Not always the same BIOS POST code at the time when the power shuts off...

Sometimes 52 (Checking memory)
Sometimes 62 (Reference says 'Reserved')

But, none the less... After the BIOS beep (a normal beep) it simply powers off...

All connectors to Mobo and to power supply are firmly seated and nothing else seems to be wrong...

Any suggestions from hardware guru's out there?

 

 

 

 

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