Contribution d'origine par : Majesty ,
Have you tried to boot into an installation CD, or any other diagnostics DVD? If not try that and see if the system acts erratically. Being that you Zero'ed the Drive and re-installed the software, it is starting to look like a Hardware issue. Maybe a CPU or GPU with bad solder joints, or the infamous Capacitor issue you hear so much about. But, before we draw any conclusions, lets try booting from an installation CD or an external drive with a bootable OS on it.