Toshiba Equium 5160D Series Preliminary Maintenance Manual page 70

Removing the System Board (5160D/5200D)
To remove the 5160D/5200D system board, perform the following procedure and see Figure
4-22.
1. Turn off power to the computer, then disconnect the power cord and all external cables
connected to the computer.
2. Remove the computer's cover. (Refer to section 4.2.1.)
3. Remove the riser card. (Refer to section 4.3.1.)
4. Disconnect all cables from the system board, including power cables, data cables,
switch and LED cables, audio cables, and so on.
5. Remove the five screws that secure the system board to the chassis.
6. Gently lift the board until it is free of its two restraining pins. Carefully lift the system
board out of the chassis.
Figure 4-22 Removing and Replacing the 5160D/5200D System Board
7. Remove the heat sink and microprocessor from the system board. (Refer to section
4.11.1.)
8. Remove memory modules from the system board. (Refer to section 4.13.1.)
9. Remove the RTC battery from the system board. (Refer to section 4.14.1.)
Equium™ Series Maintenance Manual --------------------------------------------------------- 4-26