Computer INSTANTLY reboots after boot.

[Kasuai]

Computer instantly reboots after 1 second. I have unplugged every part apart from the motherboard only have PSU connected and it still turns off.

 

[prestocreams]

remove the CMOS battery then wait for 30 sec. Put it back then reconfigure your BIOS setting.

 

[Kasuai]

@prestocreams already tried that boots up for a couple of seconds after I do that then restarts the constant rebooting cycle.

Nothing comes on my screen and my USB keyboard doesn't turn on.