PC rebooting without warning

piekilla

Honorable
Jan 10, 2013
14
0
10,510
Recently my computer has been rebooting without warning. It will be fine and instantly reboot, as if the power has gone, but the lights on the case fans are still on, & the fans are still running.

It's a homebuilt rig and i'm completely stumped as to what to do.

I've disabled reboot on system failure to no avail.

Cheers for any help
 

TenPc

Honorable
Jul 11, 2012
2,471
1
11,960
Hello, and welcome to Tom's Hardware.

All replies are given in the hope of helping you find a solution. Sometimes a reply might not be helpful but is given in good faith. Bear with us as we do need as much detail as possible so give your full specs to your PC so that we can ascertain whether the hardware is at fault or something entirely different.