3. Rotate the system board latch lever 90 degrees (1) clockwise to unlock the system board.
4. Slide the system board forward (2) to disengage the metal mounting standoffs from the chassis.
CAUTION Do not attempt to remove the system board mounting screws. These screws
are permanently secured and are not removable.
5. Lift the system board out (3) of the chassis, being careful not to damage the cables and rear panel
connectors. You can lift the board by the rear audio connector and the 2 x 4 power connector (4).
Figure 4-53 Removing the system board
Replacing the System Board
1. Insert the system board straight down, and be sure that all system board standoffs engage with
the keyholes in the chassis.
NOTE Be sure the system board connectors engage correctly with the rear I/O panel.
2. Push back on the board while maintaining downward pressure on the board, so all standoffs remain
engaged.
3. Rotate the system board latch 90 degrees counter clockwise.
4. Install the heatsink (
Replacing the CPU heatsink on page 92).
5. Install all removed components and cables.
ENWW Removing and replacing components 97