Dell Inspiron PD598 Owner's Manual page 126

NOTICE:
To avoid damaging the system board, you must remove the battery before you begin working inside the
computer.
1 Follow the procedures in "Before You Begin" on page 117.
2 Turn the computer over and loosen the captive screws from the Mini-Card/modem cover.
3 Place your finger under the cover at the indentation, and lift the cover to remove it.
4 If a Mini-Card is not already installed, go to step 5. If you are replacing a Mini-Card, remove the
existing card:
Disconnect the antenna cables from the Mini-Card.
a
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Adding and Replacing Parts