Apple PC Compatibility Card (Installation) - Manual (Page 37)

2 Remove the screw that holds the lower port cover in place. Hold your finger under the
screw to catch it and the port cover when they come loose.
Try not to let the port cover or the screw fall onto the logic board.
IMPORTANT The PC Compatibility Card should only be installed in the
bottom PCI slot. Be sure to remove the lower port cover, not the upper one.
If you already have a PCI card installed in the bottom PCI slot, remove it
now, and then reinstall it in the top slot after you have finished installing the
PC Compatibility Card. For instructions on how to remove the PCI card,
refer to the manual that came with the card.
Remove the screw that holds the lower port cover in place.
Position your hand so that the screw and the
port cover do not fall onto the logic board.
37 Installing the PC Compatibility Card in a 6400 Series Macintosh Computer