System board
NOTE: The system board spare park kit includes replacement thermal material.
Follow these steps to remove the system board:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 32).
2. Remove the access panel (see Access panel on page 33), and then remove the following components:
a. Front bezel (see Front bezel on page 36)
b. WLAN module (see WLAN module on page 43)
c. Solid-state drive (see Solid-state drive on page 44)
d. Drive cage (see Drive cage on page 40)
e. Fan-sink (see Fan-sink on page 48)
NOTE: When replacing the system board, be sure that the processor (see Processor on page 49) and
connector board (see Connector board on page 53) are removed from the defective system board and
installed on the replacement system board.
3. Disconnect the following cables from the system board:
(1) Fan cable
(2) Hood sensor switch cable
(3) Drive power cables (two locations)
(4) Power supply cables (three locations)
(5) Drive data cables (four locations)
(6) Speaker cable
System board 51
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