3. Remove the USB board from the computer (3).
Reverse this procedure to install the USB board.
Fan
To remove the fan, use this procedure and illustration.
Table
5-14 Fan description and part number
Description Spare part number
Fan L23189-001
Before removing the fan, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 26).
2. Remove the rubber feet (see Computer feet on page 26).
3. Remove the bottom cover (see Bottom cover on page 27).
4. Remove the battery (see Battery on page 28).
Remove the fan:
1. Disconnect the fan cable from the system board (1).
2. Remove the two Phillips M2.5 × 5.0 screws (2) that secure the fan to the computer.
Component replacement procedures 41