IBM 802.11B - Manual (Page 8)

Installing the Mini-PCI Card
Note: Use only the Mini-PCI Card provided by IBM.
If your computer is a wireless upgradable model, and you are installing the
Mini-PCI Card for the first time, follow the procedure below.
For ThinkPad R32 series computer
If you are using ThinkPad R32 Series computer, do as follows:
1. Turn off the computer; then disconnect the ac adapter and all cables from
the computer.
2. Close the computer display, and turn the computer over.
3. Remove the battery. (For information on removing the battery, refer to the
ThinkPad R32 Series Service and Troubleshooting Guide.)
4. Loosen the screw on the cover of the Mini-PCI Card slot 1 ; then remove
the cover 2 .
1-2 Cisco Aironet wireless 802.11b Mini PCI by IBM: User’s Guide