4 Replacement Procedures 4.13 System board/RTC battery
3. Install the RTC battery to the slot and wrap it with the insulator.
CAUTION: When installing new system board, stick new keyboard supports on the
system board.
Keyboard support
For the model of no wireless LAN
Keyboard support
4-44 [CONFIDENTIAL] PORTEGE M400 Maintenance Manual (960-541)
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