I fitted the new card which is an nvidia 5500 256mb ram. Nothing changed, still restarts when xp should load, can't get into any advanced boot options including safe mode. A BSOD comes up for a second but I couldnt find a setting to change in bios to make it stay for long enough to write down the error. If changing the graphics card didnt help why was the other one broken? Was it just a coincidence or will the problem with the system break this card also? So far I have done a clean install of windows, changed all possible problematic drivers, changed the ram, changed the power supply and now changed the graphics card. Nothing has helped. Could it be something to do with a short circuit? Some part of the mboard touching the case or something else it shouldn't? Is the mboard likely to be broken? Please help.