Apple PC Serial and Parallel Card - Manual (Page 47)

Preparing the slots
7 Remove the metal port access covers for the slots you need.
If you are installing the PC Serial and Parallel Card at the same time you are
installing a PC Compatibility Card, pull out the port access cover behind the
expansion slot closest to the center of the computer. Then pull out the port
access cover behind the second PCI expansion slot.
If you already have a PC Compatibility Card installed in your computer, leave
it in place and pull out the port access cover behind the second PCI
expansion slot.
8 If you have a card in the third PCI expansion slot, remove it.
You will have more room to install your PC Serial and Parallel Card if the
third slot is empty. See the user’s manual that came with the card for
instructions on how to remove it.
Press apart the two
levers next to the
card access port to
release the access
port cover.
Second PCI slot PC Compatibility Card Slide the port access cover out
and away from the access port.
47 Installing the Card in a Power Macintosh 8500 or 9500