I installed a newly bought DVD Rom, so I now have a CD writer and a DVD rom then I noticed that my computer keeps on restarting after this, so I tried to uninstall several drivers but still the problem is there, I even tried to remove both CD and DVD rom. I thought that a virus might have infected my PC so I decided to reformat and used an XP CD for this. I am the only one using my PC and I havent touched the BIOS.
I'll check on the links you posted. thanks GX1_man.