user manual

System Board
Description Spare part number
System board (includes thermal material) 657239-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 91).
2. Remove the access panel (
Access Panel on page 92).
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 97)
●
Expansion cards (
Expansion Card on page 100)
●
Heat sink (
Heat sink on page 123)
●
Processor (
Processor on page 125)
4. Remove the baffle from the chassis (
Fan duct on page 116).
5. Remove the fan from the chassis (
Front Fan Assembly on page 117).
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.
130 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis