Dell NM176 owner manual Optional PCI Fan Assembly, Removing the PCI Fan Assembly

5Reconnect the fan assembly power cable to the system board.

6Install the cooling shroud. See "Installing the Cooling Shroud" on page 57.

7Close the system. See "Closing the System" on page 55.

Optional PCI Fan Assembly

The optional PCI fan module provides cooling for the expansion cards.

NOTICE: Your system requires the PCI fan assembly if your system has a SAS controller that can be connected to an external storage system. Removing the fan assembly or disabling the fan could result in your system overheating and shutting down unexpectedly.

Removing the PCI Fan 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.

2Disconnect the following cables from the system board and SAS controller (if present):

•fan power cable

•intrusion switch cable

•hard drive interface cables

•control panel interface cable

•optical drive interface cable (if present)

3Pull the interface cables through the panel cutout and fold them out of the way. See Figure 3-12.

4Using a #2 Phillips screwdriver, remove the two screws securing the PCI fan assembly to the chassis. See Figure 3-12.

5Remove the fan assembly from the system.

Installing System Components

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