I am looking at getting a new motherboard and it only has 1 PCI slot, but it has 2 PCI-X slots. My questions is how do I know if my current PCI cards will work in the PCI-X slot. From what I read the PCI card has to be keyed to allow 3.3 volt operation. I have no idea what that means. The motherboard is an Asus M2N32-WS Pro. I am getting this for 50 bux from someone I know so please no links to other motherboards I should consider. http://www.newegg.com/Product/Product.aspx?Item=N82E16813131026 The PCI cards in question are an old Belkin 54G Wireless Network Card (don't know model number offhand) and a Hauppauge WinTV-PVR-150. Thanks in advance for the help. Everyone here is great.