IBM ThinkPad R40 series Service Manual page 44

Upgrading the hard disk drive
5. Open the computer display; then stand the computer on its side and
6. Detach the cover from the hard disk drive.
7. Attach the cover to a new hard disk drive.
8. Insert the hard disk drive and its cover into the hard disk drive bay; then
9. Turn the computer over so that its bottom side is up. Reinstall the screw.
10. Reinstall the battery.
11. Turn the computer over again. Connect the ac adapter and the cables to
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ThinkPad R40 Series Service and Troubleshooting Guide
remove the hard disk drive by pulling the cover away from the
computer.
firmly install them.
Note: You can replace the screw with a security screw to prevent the
hard disk drive from being removed easily. The security screw
may not be included in your ship group. You can, however,
purchase screw directly from NABS at www.nabsnet.com
the computer.