My PC will randomly shut down in an instant with no warnings whatsoever. Just an instant power off, sometimes it'll stay on for hours, sometimes ten minutes.
It has also done it when plugging in any USB device into any of the slots which leads me to believe it is a mainboard issue. To get it back on again, the power cable needs removing until the mobo lights have gone out.
There is nothing in the Windows system logs to indicate a software issue and no blue screens.
Mainboard is an ASUS B450 TUF Gaming and it has been replaced before under warranty for a related power issue (it wouldn't come on at that time).
I've tried booting with all USB devices unplugged and it still does it.
Anything else I can check before ordering a new mobo (definitely not an ASUS again)?
It has also done it when plugging in any USB device into any of the slots which leads me to believe it is a mainboard issue. To get it back on again, the power cable needs removing until the mobo lights have gone out.
There is nothing in the Windows system logs to indicate a software issue and no blue screens.
Mainboard is an ASUS B450 TUF Gaming and it has been replaced before under warranty for a related power issue (it wouldn't come on at that time).
I've tried booting with all USB devices unplugged and it still does it.
Anything else I can check before ordering a new mobo (definitely not an ASUS again)?