USB board
Description Spare part number
USB board for use in models with AMD Radeon graphics 926883-001
USB board for use in models with Nvidia GeForce graphics 926884-001
USB board cable 926871-001
Before removing the USB board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the bottom cover (see Bottom cover on page 35).
5. Remove the battery (see Battery on page 37).
To remove the USB board:
1. Disconnect the larger (1) and smaller (2) cables from the USB board.
2. Remove the two Phillips PM2.0×4.0 screws (3) that secure the USB board to the computer.
3. Rotate the back of the board up and pull it away from the side of the computer to remove it (4).
Reverse this procedure to install the USB board.
50 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
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