System Board
Description Spare part number
System board (includes thermal material) 657239-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 94).
2. Remove the access panel (
Access Panel on page 95).
3. When replacing the system board, make sure the following components are removed from the
defective system board and installed on the replacement system board:
●
Memory modules (
Memory on page 100)
●
Expansion cards (
Expansion Card on page 103)
●
Heat sink (
Heat sink on page 126)
●
Processor (
Processor on page 128)
4. Remove the baffle from the chassis (
Fan duct on page 119).
5. Remove the fan from the chassis (
Front Fan Assembly on page 120).
6. Rotate the drive cage to its upright position.
7. Rotate the power supply to its full upright position.
8. Disconnect all data and power cables from the system board.
9. Disconnect the balance of the cables from the system board.
10. Remove the eight Torx T15 screws (1) that secure the system board to the chassis.
System Board 133
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