Computer Randomly ( and forcefully) reboots?

Since it's not a temperature issue, it sounds like you might have a corrupted file or computer virus that's causing the error and shutting the computer down. You should run an antivirus program, like norton antivirus, to scan for computer viruses and also scan your computer registry for corrupted files. The registry contains the configuration and application settings on your computers and if there's a problem with one of the main files, it could be causing your computer to crash. a href="http://www.registrycleanerstested.org" rel="nofollow"http://www.registrycleanerstested.org/a will let you scan your computer registry to repair or remove problematic files.