Service Manual

Procedure

NOTE: Note the routing of all cables as you remove them so that you can reroute them correctly after you replace the

system board. For information on system board connectors, see "System-board components".

1 Disconnect all the cables connected to the system-board assembly.

Figure 55. Removing the system board

1 Top panel USB cables (SSUSB) 2 SATA 6 Gbps drive cable (SATA1)

3 SATA 6 Gbps drive cable (SATA2) 4 system board

5 front-panel audio cable (F_AUDIO) 6 LED controller cable (LED_CONTROLLER)

7 graphics-card power cable (GPU_POWER) 8 processor power cable (ATX_CPU)

9 top-chassis fan cable (TOP_FAN) 10 system-board power cable

11 front-chassis fan cable (FRONT_FAN)

2 Remove the screws that secure the system-board assembly to the chassis.