4.13 System board/RTC battery 4 Replacement Procedures
Installing the system board/RTC battery
The following describes the procedure for installing the system board/RTC battery. (See
Figure 4-27.)
1. Connect the RTC battery cable to the connector CN9300 on the system board.
2. Install the system board to the base assembly and secure it with the following screws.
• M2.5×6.0B FLAT HEAD screw ×3
NOTE: Make sure the system board is on the front panel.
System board
Front panel
PORTEGE M400 Maintenance Manual (960-541) [CONFIDENTIAL] 4-43
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