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Removal and replacement procedures

Maintenance and Service Guide 4–53

System board

✎

The system board spare part kit includes replacement thermal material.

Before removing the system board, 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 7).

5. Remove the following components:

a. Hard drive (see “Hard drive” on page 8)

b. Memory module (see “Memory module” on page 10)

c. WLAN module (see “WLAN module” on page 12)

d. WWAN module (see “WWAN module” on page 19)

e. SIM slot board (see “SIM slot board” on page 20)

f. RTC battery (see “RTC battery” on page 22)

g. Optical drive (see “Optical drive” on page 23)

h. Keyboard (see “Keyboard” on page 25)

i. Switch cover (see “Switch cover” on page 29)

j. Speaker assembly (see “Speaker assembly” on page 31)

k. Display assembly (see “Display assembly” on page 32).

l. Top cover (see “Top cover” on page 44).

When replacing the system board, be sure that the following additional components are removed from the defective

system board and installed on the replacement system board:

■ Heat sink (see “Fan/heat sink assembly” on page 56)

Description Spare part number

For use only with dv3-2000 computer models: