Maintenance and Service Guide

System board
NOTE: All system board spare part kits include replacement thermal material.
1. Prepare the computer for disassembly (Preparation for disassembly on page 17).
2. Remove the access panel (Access panel on page 18).
3. Remove the fan (Fan on page 40).
4. Remove the heat sink (Heat sink on page 41).
5. Remove the drive cage (Drive cage on page 22).
6. When replacing the system board, make sure the following components are removed from the defective
system board and installed on the replacement system board:
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Memory modules (Memory on page 24)
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Expansion cards (Expansion card on page 27)
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Processor (Processor on page 42)
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WLAN module (WLAN module on page 43)
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Solid-state drive (Removing and installing an M.2 SSD storage card on page 38)
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Option port board (Option port board on page 46)
7. Disconnect all remaining cables connected to the system board, noting their location for reinstallation.
8. Remove the front I/O bracket by pushing the bottom away from the chassis, and then removing the
bracket.
System board 53