1. Exadata Server X10M Service Manual
  2. Servicing Fan Modules

6 Servicing Fan Modules

This section describes how to service fan modules and the fan tray.

Fan modules are replaceable components that do not require you to power off the server before servicing. For more information about replaceable components, see Illustrated Parts Breakdown and Replaceable Components.

Fan modules are located in the front of the server.

Remove a Fan Module

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

Caution:

When removing and replacing a fan module in the Exadata Server X10M, 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 one fan, with two fan motors per fan. The two fan motors provide separate tachometer signals so that the fan module reports two tach signals to Oracle ILOM. Even if only one fan motor is faulted within the fan module, the Oracle ILOM service processor detects that two 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.

If the cover is not installed within 60 seconds, the system may shutdown due to over-temperature or a PCIe card may overheat, potentially damaging it.

  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 service action required status indicator (LED) that is located next to 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. Using your forefinger and thumb, lift the fan module straight up and out of the chassis and set it aside on an antistatic mat.
    Figure showing how to remove a fan module.
  5. 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, install the replacement fan module into the server.

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

    Figure showing how to install a fan module.
  3. Press down on the fan module to fully seat the fan module.
  4. Verify that the fan module status indicator (LED) for the replacement fan module is not illuminated.
  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 not illuminated.

    See System-Level Status Indicators for more information about identifying and interpreting system status 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.

Remove the Fan Tray

Perform this procedure only when servicing Disk backplane, SAS cables, and Motherboard assembly replaceable components.

  1. Remove all fan modules from the fan tray.
  2. Remove the air baffle.
  3. Using a Torx T25 screwdriver, loosen the five spring-mounted screws that secure the fan tray to the server chassis.
    Figure showing the fan tray screws being removed from the server.
  4. When removing the fan tray, slightly tilt the fan tray to the left to decompress the cables, before the operation.
    Ensure all motherboard cables are clear of the fan tray and fan tray gasket. Figure showing the fan tray being lifted from the server.
  5. Lift the fan tray from the server.
    Figure showing the fan tray being removed from the server.
  6. Continue with the next step in the service procedure.

Install the Fan Tray

Perform this procedure only when servicing Disk backplane, SAS cables, and Motherboard assembly replaceable components:

  1. Lower the fan tray into the server.
    Ensure all motherboard cables are clear of the fan tray and fan tray gasket. Figure showing the fan tray being installed in the server.
  2. When installing the fan tray, the fan tray should first be slightly tilted to the left to compress the cables, before the operation.
    Ensure all motherboard cables are clear of the fan tray and fan tray gasket. Figure showing the fan tray being lowered in the server.
  3. Using a Torx T25 screwdriver, tighten the five spring-mounted screws that secure the fan tray to the server chassis.
    Figure showing the fan tray being secured in the server.
  4. Install the fan modules into the fan tray.
  5. Install the air baffle.
  6. Continue with the next step in the service procedure.