I'm working on a Gateway 835GM. The trouble is the onboard video is all messed up, it's hard to explain, scrambled is the best way. So I put a PCIe 16X card in and everything was perfect for about a week, then the computer stopped booting. You'd hit the power switch and nothing except the fans would work (when you boot the CPU fan goes full speed untill the BIOS slows it down and it wasn't even getting that far). When I took out the PCIe card it would boot with no problems, except the video is scrambled. Returned that card and got a different one but same deal, won't boot. Now I have a old, very old, PCI card and it works. My question: Does the PCI Express and onboard video use a different area of the motherboard/chipset than a PCI slot? I want to just get a PCI card but don't want to have the same trouble, I feel there is a chipset problem and it only affects the onboard video and PCI express but won't affect the PCI slots, but I'm no expert and need opinions, please.