I am trying to fix a desktop that will not start. It would jam up while trying to load windows, even when it was trying to load into safe mode.(the advanced opts screen was the only screen I could get into, but then it froze. I also could get into bios. Tried to boot with winxp disc to no avail. Then I put in the 6-disc win xp boot floppies and after the 3rd floppy, I lost the picture. Tested power supply and it was bad, so I changed it. Now with a working power supply I get only about one second of the safe mode option or the bios screens, before they keep flashing on and off. eventually getting nothing. I even changed the ram every which way with a new stick, with no ram beep. WHAT IS WRONG? Motherboard, ram, PS, cpu or all of the above.
It will not spin the xp startup disc for a fresh install.
The pc is a junky Syntax 266 mobo with 512 mb pc2100 ram(was 256). Windows xp.
Please help. This is not my PC and I hope I didn't do more damage than I did good. I really do think the whole pc is shot.