Compaq Armada 1100 Reference Manual page 70

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7. Replace the battery pack.
8. Connect the computer to electrical power and turn it on. The
computer automatically recognizes the new memory and
reconfigures the system.
CAUTION: The connectors on the memory expansion board are all
similar in appearance but do not have the same number of connector
pins. Be sure you match each connector to its corresponding system
board connector. Incorrect insertion could result in damage to the
memory expansion board or the system board.
Upgrading the Computer 6-5