System board
The system board is secured with a a total of ten Torx screws. Two of the screws also secure the removable
side bracket, and two other screws secure the I/O bracket.
To remove the system board:
1. Prepare the computer for disassembly (see Preparing to disassemble the computer on page 31).
2. Remove the rear port cover (see Rear port cover on page 31).
3. Remove the stand (see Attaching and removing a stand on page 32).
4. Remove the access panel (see Access panel on page 37).
5. Remove the system board shield (see System board (EMI) shield on page 48).
6. Remove the memory modules (see Memory on page 49).
7. Remove the mSATA drive (see PCI-Express M.2 Solid-State Drive on page 54).
8. Remove the WLAN module (see WLAN module on page 56).
9. Remove the heat sink (see Heat sink on page 59).
10. Remove the processor (see Processor – AMD models on page 61) or Processor – Intel models
on page 62.
11. Disconnect all cables from the system board, noting their location for reinstallation.
12. Remove the side bracket by removing the two Torx screws (1), and then rotate the bracket to remove it.
13. Remove the rear I/O port cover by removing the two Torx screws (2), and then rotate the bracket to
remove it.
64 Chapter 4 Removal and Replacement Procedures
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