PC brand new build. Was able to load OS no issues. Went to MSI to get latest updates for motherboard and started applying then when it reboot to apply an update to one of the latest drives it started to turn on and off. I took power off motherboard to see if power issues but all good. Then I took the CMOS battery out for 1 minute and reinstalled. Worked fine for approx. 50 seconds. Longer than when it turns on and off.