Dell NM176 owner manual System Board Service-Only Procedure, Removing the System Board Assembly

3Connect the control panel cables. See Figure 3-20.

4Close the system. See "Closing the System" on page 55.

System Board (Service-Only Procedure)

The system board and system board tray are removed and replaced as a single assembly.

Removing the System Board Assembly

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Open the system. See "Opening the System" on page 54.

2Remove the cooling shroud. See "Removing the Cooling Shroud" on page 56.

3Remove the heat sink and processor. See "Replacing the Processor" on page 85.

4Remove the memory modules. See "Removing Memory Modules" on page 84.

NOTE: As you remove the memory modules, record the memory module socket locations to ensure proper installation.

5If applicable, disconnect the optical drive interface cable from the IDE connector on the system board. See Figure 6-2.

6Disconnect the control-panel interface cable from the FP_CONN1 connector on the system board. See Figure 6-2.

7Disconnect the hard-drive interface cables:

a If a SAS controller is installed, disconnect the interface cable from the controller card.

b If the system hard drives are connected to the integrated controller, disconnect the interface cables from the SATA_0 and SATA_1 connectors on the board. See Figure 6-2.

Installing System Components

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