The internal modem is standard on some models and is attainable as an upgrade option
on other models. If the model is not equipped with a modem, the modem compartment
is sealed by a protective plate underneath the modem cover.
For models equipped with a modem, complete the following steps to remove the
modem.
1. Prepare the computer for disassembly (Page 5-3).
2. Turn the computer bottom side up with the front of the unit toward you.
3. Remove the screw from the modem access cover.
4. Remove the modem access cover.