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System Board
Description Spare part number
System board for use in models without Windows 8 657095-001
System board for use in models with Windows 8 Standard 657095-501
System board for use in models with Windows 8 Professional 657095-601
System board with DisplayPort 1.2 support for use in models without Windows 8 711787-001
System board with DisplayPort 1.2 support for use in models with Windows 8 Standard 711787-501
System board with DisplayPort 1.2 support for use in models with Windows 8 Professional 711787-601
Front I/O panel 587458-001
CAUTION: Be very careful when removing or replacing the system board to prevent damaging it.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 207).
2. Remove the computer access panel (
Access Panel on page 208).
3. Remove the memory modules (
Memory on page 214).
4. Remove the front fan (
Front Fan on page 218).
5. Remove the optical drive (
Removing the Optical Drive on page 219).
6. Remove the hard drive (
Hard Drive on page 222).
7. Remove the optical drive rail (
Optical Drive Rail on page 227).
8. Remove the heat sink (
Heat sink on page 231).
9. Disconnect the rear fan cable from the system board.
10. Disconnect any remaining cables connected to the system board, noting their location for
reinstallation.
11. Remove the front I/O panel:
a. Remove the Torx T15 screw from the right side of the panel that secures it to the front of
the chassis.
Figure 9-34 I/O panel screw
System Board 241