5-18 Removal and Replacement Procedures
7. Slide the system board with the tray out of the chassis.
✎
If a replacement external battery is installed on the system board, do not unplug the battery from
the system board connector as that will erase the CMOS. Remove the external battery from the
hook-and-loop fastener on the chassis but leave it electrically connected to the system board.
Figure 5-13.
Removing the System Board
To install a new system board, reverse the above procedures.