Get into the BIOS and for the onboard setting change it from AUTO to one of the other settings.
I purchased a new HP 8100n pc with integrated display adapter, i have a dual monitor set up, so I wanted to install a PCI graphics card. Once I installed the pci card the pc for some reason disabled the on- board card.
How do I re-enable the on-board graphics in addition to having the PCI card installed? I have read a few threads that mention this same problem, but I haven't seen a resolution to the problem.