Installed GEFORCE 8400GS PCIE x 16 in Dell 531 S. BIOS configured to PCIe and PCI/PCIE power at boot. Only graphics signal comes from onboard VGA nothing from Card. Thoughts?
reboot and change bios init display to onboard. reboot 3 time for luck. reboot and change bios init display to PCIE. Go to device manager and uninstall onboard driver and shut down box. Install card, attach cable to card, and turn on the box. Go to device manager to validate that new card has ben recognized. Go to nVida support and down load latest driver.