| I'd take a look in event viewer and see if any errors are being logged when the computer restarts. Usually, if it just reboots out of the blue, that means there was a crash of some sort that will be logged. Once you find the error, check the manufacturers support site (assuming it's video card related) and search the web for solutions with the error information. You can also go to Control Panel\System\Advanced\Startup and Recovery and turn off the automatic restart to see the crash information (and find the location of the memory dump in case you need it for support). |