I have on board video and am upgrading to 128mb pci card. Is it necessary to
disable the on board before installing the new card. Didn't know if windows
did this and automatically picked up on the new card or not. System is win
xp home. Thanks
With any system new enough to have AGP or PCI Express video
support (even if it doesn't have the slot, it can be a
northbridge-integral or discrete chip (more common on server
boards) which generally means anything from around '97-98
till today, it depends on what the bios default setting is
for which video card (type) to consider the primary display.
Often the bios is set by default to consider PCI the default
to reduce customer support issues, with the idea that it
would be more likely to have someone install a new card to
replace their AGP (or PCI Express) rather than be a
supplimentary 2nd display.
So install the PCI card and plug the monitor into it. When
you turn the system on if you don't see the video on the
monitor as usual, within a second or two, turn off the
system, reconnect monitor to the other video port, and when
you power on, enter the bios menu to change the primary
display adapter setting.