Dual video cards (PCI-e/PCI) not working
Posted on 2008-11-17
I have a Gateway GT5678 computer with Windows Vista x64. I'm attempting to set up a three monitor display with two video cards. The PCI-e video card is a GeForce 7300 while the PCI card is a GeForce 8400.
I have displays 1/2 plugged in to the 7300 (#1 is DVI, #2 VGA) and I'm attempting to drive the third monitor by the DVI output on the PCI card.
Both cards work independently of each other, but the minute I install them both, only one is detected (typically the PCI-e card). If the PCI-e card is enabled, monitors 1 and 2 operate correctly. If the PCI card is enabled, only monitor 3 operates correctly.
Am I missing something or is there no way to have both PCI-e and PCI working at the same time?
Also, onboard video seems to be disabled anytime either card is plugged in so apparently I can't use that.
Assuming running the two cards at once is not possible, are there ANY options for enabling the third monitor? I want them setup independent of each other so I have three separate work areas, not one large screen.
Thank you for any assistance.