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3. Remove the two Phillips PM2.5×10.0 screws that secure the system board to the base enclosure.
4. Use the optical drive connector (1) to lift the right side of the system board (2) until it rests at an
angle.
5. Remove the system board (3) by pulling it away from the base enclosure at an angle.
Reverse this procedure to install the system board.
RJ-11 connector cable
Description Spare part number
RJ-11 connector cable 486638-001
Before removing the RJ-11 connector cable, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
Component replacement procedures 77