1. Oracle Server X9-2 Service Manual
  2. Servicing Fan Modules (CRU)

5 Servicing Fan Modules (CRU)

This section describes how to service fan modules. Fan modules are customer-replaceable units (CRUs) that do not require you to power off the server. For more information about CRUs, see Illustrated Parts Breakdown and Customer-Replaceable Units.

The fan modules are located in the front of the server. See the following procedures:

Remove the Server Top Cover

Remove a Fan Module

You do not have to power off the server to service the fan modules.

Caution:

When removing and replacing a fan module in the Oracle Server X9-2, you must complete the entire procedure within 60 seconds to maintain adequate cooling in the system. Remove and replace only one fan module at a time. Ensure that you have obtained the replacement fan module and that is it is ready for installation before starting the replacement procedure. Each fan module contains two fans, with two fan motors per fan. The four fan motors provide separate tachometer signals so that the fan module reports four tach signals to Oracle ILOM. Even if only one fan motor is faulted within the fan module, the Oracle ILOM service processor detects that four fan motors have failed to spin while the fan module is removed. If the fan module is not replaced within 60 seconds of removal, Oracle ILOM will take the protective action to shut down the system to prevent thermal damage to the system.
  1. Extend the server to the maintenance position.
  2. To access the fan modules, remove the server top cover.
  3. Identify the faulty fan module.

    Each fan module has a fan status indicator (LED) that is located on the module. If the LED is amber, the fan has failed. The location of the fan status LED is shown in the following figure.


    Figure showing the location of fan modules and associated status indicators.
    LED Color and State Meaning

    Amber – The fan module is faulty. The front Top Fan LED and the front and back panel Fault-Service Required LEDs are also lit if the system detects a fan module fault.
  4. Remove the faulty fan module.
    1. Using your thumb and forefinger, grasp the fan module in the finger recesses located in the plastic between the fans.
    2. Lift the fan module straight up and out of the chassis.

      Caution:

      When removing a fan module, do not rock it back and forth. Rocking a fan module can cause damage to the motherboard connectors.

      Figure showing removal of a fan module.
  5. Set the fan module aside.

    Caution:

    Do not service any other components in the fan compartment unless the system is shut down and the power cords are removed.
  6. Consider your next step:

    • If you removed the fan assembly as part of another procedure, return to that procedure.

    • Otherwise, continue to Install a Fan Module.

Install a Fan Module

  1. Remove the replacement fan module from its packaging and place it on an antistatic mat.
  2. With the server top cover removed, position the replacement fan module into the server.

    The fan modules are keyed to ensure that they are installed in the correct orientation.


    Figure showing fan module installation.
  3. Press down on the fan module and apply firm pressure to fully seat the fan module.
  4. Verify that the fan module status indicator (LED) that aligns with the replaced fan module is extinguished.
  5. Install the server top cover.
  6. Verify that the Top Fan Fault LED on the front of the server and the Fault-Service Required LEDs on the front and back of the server are extinguished.

    See Troubleshooting Using the Server Front and Back Panel Status Indicators for more information about identifying and interpreting system indicators.

  7. Consider your next step:

    • If you installed the fan module as part of another procedure, return to that procedure.

    • Otherwise, return the server to operation. See Returning the Server to Operation.