3. Remove the fingerprint reader board (4) from the computer.
To install the fingerprint reader board, reverse this procedure.
RTC battery
To remove the RTC battery, use this procedure and illustration.
Table 6-3
RTC battery description and part number
Description Spare part number
RTC battery (CR1620) N93638-001
Before removing the RTC battery, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 37).
2. Remove the bottom cover (see Bottom cover on page 37).
3. Remove the battery (see Battery on page 48).
Remove the RTC battery:
1. Disconnect the battery cable from the system board connector (1).
RTC battery
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