Disabling Beige G3 Internal Video Card

[nyteschayde]

I have a beige powermac g3 that has been upgraded to include a pci usb card, a radeon 7000 pci mac edition and a 400 mhz g4 zif processor.

Obviously the radeon is supported under OS X ( I am running 10.2.6) and works fine. Is there a way to disable either through software or a setting somewhere the internal ATI RageII+ video card so that the OS only sees the Radeon?

I am getting problems with the mouse moving to the second monitor that isn't hooked up. I tried moving the monitor out of the way in the display preferences but I really just want to disable the internal card.

Please let me know of any options that people might know about.

[macosxuser]

Hold down the option and command (apple) and o and f keys and keep them held while booting the mac.

This gets you into openfirmware.

At the command prompt type in
setenv pci-probe-list fffbffff
and press enter or return
then type in
boot
and press enter or return.

[sinclair_tm]

what happens if you pull all the vram off the board?