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4. Lift the modem module (4) straight up to disconnect it from the system board.
5. Remove the modem module.
Reverse the above procedure to install the modem module.
Heat sink
Description Spare part number
Heat sink for use in dv3000 models (includes heat sink retention clip and replacement thermal
material)
468829-001
Heat sink for use in dv3500 models (includes heat sink retention clip and replacement thermal
material)
501015-001
Before removing the heat sink, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 43).
5. Remove the following components:
a. Optical drive (see
Optical drive on page 48)
b. Hard drive (see
Hard drive on page 51)
c. Keyboard (see
Keyboard on page 54)
d. Switch cover (see
Switch cover on page 57)
e. Top cover (see
Top cover on page 58)
80 Chapter 4 Removal and replacement procedures