Does the asus p4s800-mx support pci express video card slot/s?
that motherboard supports AGP 8X if you buy that card, you are “forced” to update to a motherboard that supports PCI Express, and those kind of motherboards usually have DDR2, and socket 775 In fact to put that video card in that cpu maybe you´ll have a bottleneck, like if the VGA Card is too fast for that PC You Should consider a CPU + RAM + Motherboard upgrade before buying that card