I've been using a PNY 8500GT so far until today when i bought a 9800GT but whenever i have the card in the mother board it never boots into anything kind of like endless restarts, I've tried taking the card out going into the BIOS and changing the PCI settings so its at PCI-Express and then inserting the card back in but the same thing happens, i was also reading on the Internet that the card requires something like a 400w Power supply minimum, which i have but switched it out for a 500w supply. I have the old 8500gt drivers uninstalled butt that also does nothing. I'm using a P4M900T-M (v1) motherboard P4M900T-M Website Also have 2GB RAM and a P4 CPU. what else can i do? or what might be the problem that it wont boot? could updating the bios of the motherboard help? any help appreciated.