I checked into it and your correct that the MSI P6N Platinum support PCI 1.0a. I checked the BIOS updates and nothing is mentioned about support for PCI 2.0. I'm not sure if that means it can't run them though. Technically I'm using RAM not supported by my motherboard and it works flawlessly. Somebody else might be able to address this better than I can. I would think that the graphics card DirtBikr linked to would support PCI 1.0 and PCI 2.0 but after checking NewEgg and the XFX website itself, I can't find anything that says it would be backwards compatible or flat out support the PCI 1.0 standard. Make no mistake that both cards are PCI x16. The standard the slots use is what is up for debate. Can anybody shed some light on this?