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 45).
5. Remove the service cover (see Service cover on page 47).
6. Remove the optical drive (see Optical drive on page 56) or upgrade bay hard drive (see Upgrade Bay
hard drive on page 58).
7. Remove the keyboard (see Keyboard on page 61).
8. Remove the top cover (see Top cover on page 71).
9. Remove the display assembly (see Display assembly on page 81).
10. Remove the graphics board fan/heat sink (see Graphics subsystem heat sink on page 96).
11. Remove the processor heat sink (see Processor heat sink on page 91).
12. Remove the audio/USB board (see Audio/USB board on page 89).
13. Remove the Smart Card reader (see Smart Card reader on page 88).
14. Remove the Expresscard assembly (see ExpressCard assembly on page 87).
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:
●
SIM (see SIM card on page 46)
●
WLAN module (see WLAN module on page 51)
●
WWAN module (see WWAN module on page 53)
●
Solid-state drive (see Solid-state drive on page 50)
●
Hard drives (see Hard drives, primary and secondary on page 48)
●
Primary memory modules (see Primary memory module on page 64)
●
Expansion memory modules (see Expansion memory module on page 60)
●
Graphics board (see Graphics board on page 99)
●
Processor (see Processor on page 94)
Remove the system board:
1. Remove the rear corner cover/right (1).
The rear corner cover/right is available in the Plastics Kit, 733637-001.
2. Remove the Torx T8M2.5×4.0 screw that secures the RJ-45 connector bracket (2).
Component replacement procedures 103
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