No, if in the primary it's not being detected. On this board, if you're only running one card it must be in the primary, you can't place it in any PCI-e slot or it won't boot. Right now I have a 9800GTX in the primary and I'm using the Voodoo3 to actually display. I'm thinking about flashing the BIOS of the 9800GTX and seeing if that fixes the problem but doing a little more reading about the topic. Also not sure if it will void the warranty.