I installed a Volume License copy of XP Pro with SP3, downloaded from a torrent site. MB is Intel D102GGC2 and processor is 2.8GHz P4 I think. Earlier I had checked the BIOS with OEMBIOSTEST.ISO and then ran dmitattoo.iso to make it as HP Bios CD4E1902. After XP installed, I used OEMBIOS changer. Everything went well. I left the computer for some time and when I came back it was on screen saver. When I tried to move mouse, it just frooze. Now it is just not booting, no boot up screen, no BIOS, what do I do???