I purchased this Ti4600 a while and decided to give it try in a machine. Windows detected it and installed default drivers. I then installed Nvidia drivers and rebooted. Windows loaded up fine. As soon as I run Quake 3 , the screen goes blank the monitor loses signal. When I reboot the machine after losing signal, the screen goes blank again after the Windows XP load screen.

I've reinstalled Windows on another 2 motherboards (and different PSU's), used different monitors, tried different driver versions and the same issue occurs.

All the caps look great and I can't see any physical damage. I’ve put fresh thermal paste on the GPU. Any hints or tips would be greatly appreciated.

AGP set to 2x in the BIOS in an attempt to diagnose then issue.