I have the P5LD2 with a P4 3ghz, 1gig of ddr2 667mhz OCZ, Antec Neo HE 500w power supply, ATI X1800XL 256mb. With all of that in, it just reboots none stop. If i take the video card out and put a PCI card in, it reboots alot less. I got XP installed with the PCI card in but now when i get into...