Apple PC Compatibility Card 12-inch card - Manual (Page 147)

Your PC Compatibility Card comes with RAM (random-access memory)
already installed. You can increase the memory available to the card by
installing a DIMM (dual inline memory module) in the DIMM socket.
Memory you add to the card is for the exclusive use of your PC and may
improve the performance of your PC software.
The DIMM socket accepts an 8, 16, 32, or 64 MB DIMM.
The DIMM that your card uses is the same type of DIMM that your
computer uses.
If your PC Compatibility Card is already installed, installing memory on the
card involves the following steps:
m opening the computer
m removing the card
m removing the existing DIMM, if one is installed
m installing the new DIMM
m replacing the card
m closing the computer
If the card is not installed yet, you need only install the new DIMM, install
the card, and close the computer.
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Appendix A
Adding Memory to a PC Compatibility Card