To install a display cable, reverse the removal procedures.
System Board and I/O Board Assembly
Description Spare part number
System board assembly with processor (includes replacement thermal material) 619968-001
I/O board 623385-001
The system board assembly includes the main system board, the I/O board, and a bracket that
secures the boards to the computer. The I/O board fits into connectors on the system board. The
assembly is mounted to the side of the computer with two screws.
1. Prepare the computer for disassembly (see
Preparing to disassemble the computer
on page 106).
2. Remove the stand (see
Stand on page 111).
3. Remove the hinge cover (see
Hinge Cover on page 112).
4. Remove the memory/optical drive cover (see
Memory/Optical Drive Cover on page 107).
5. Remove the rear cover (see
Rear Cover on page 113).
6. Remove the rear metal cover (see
Rear Metal Cover on page 118).
7. Disconnect all cables and wires from the system board.
System Board and I/O Board Assembly
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