Dell NM176 owner manual Installing the System Board Assembly

Installing 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.

1Unpack the new system board assembly.

2Align the system board tray so that the tabs on the chassis floor slide into the notches in the system board tray.

3Slide the system board tray backward until it stops.

4Press down on the plunger that secures the system board tray to the chassis. See Figure 3-21.

5Connect the two power cables to the 12V and PWR_CONN connectors on the system board. See Figure 6-2.

6Connect the chassis intrusion cable to the INTRUSION_SWITCH connector on the system board.

7Install the riser card. See "Installing the Riser Card" on page 80.

8Using a #2 Phillips screwdriver, tighten the two screws that secure the riser card to the system board.

9Install any PCI expansion cards that you removed. See "Installing an Expansion Card" on page 75.

10Connect the hard-drive interface cables:

a If you installed a SAS controller, reconnect the interface cable to the controller card.

b If your configuration uses the integrated controller, reconnect the hard drive 0 interface cable to the SATA_0 connector and the hard drive 1 interface cable to the SATA_1 connector on the system board. See Figure 6-2 for the location of the SATA connectors.

11Install the processor and heat sink. See "Replacing the Processor" on page 85.

12Install the memory modules. See "Installing Memory Modules" on page 82.

NOTE: Install the memory modules as noted in step 3 of the procedure in "Removing the System Board Assembly" on page 91.

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Installing System Components