User has an Optiplex 755, it has onboard VGA. User wants dual monitor support. I have a small profile DVI extender and a large profile PCIe video card. The DVI extender does not fit in the riser card because of the form factor. When I install the PCIe video card the Dell BIOS (A17) want to use either the onboard VGA **or **the PCIe, not both and will disable the one i'm not using. I cannot get Windows XP to enable the card disabled in the BIOS.
The motherboard has a riser that yields 1 x PCIe and 1 x PCI both large profile. the motherboard has 1 x PCI small profile.
How can I force the BIOS to leave both cards enabled? Do i have any other options besides buying a dual DVI out video card?