Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model, or at least the model, of your mboard.
The model of a brand name system is usually on a label on the outside of the case,
or if it's a Dell system, go here to find your Service tag number, tell us what it is:
The model of a mboard in a a generic desktop system is usually printed in obvious larger characters on the surface of the mboard, often between the slots, or near the center of the mboard.
Some computers show a screen with the model number on it while booting the computer.
Computers can Restart for no apparent reason, but they DO NOT normally shut down and stay off, unless
- the cpu (processor) has overheated and the bios has shut off the mboard because of that. In that case the computer WILL NOT start up again until the cpu has cooled to below some temperature
- if you have a laptop or netbook and do not have the AC adapter plugged in, the computer will shut down when the battery no longer has enough capacity left. The computer WILL NOT start up and run on the battery alone until the battery has been charged to at least a minimal level, when the AC adapter is not plugged in when you boot the computer.