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Remove a rear fan control board

Follow instructions in this section to remove a rear fan control board module. The procedure must be executed by a trained technician.

About this task

Attention
  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.
  • If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover, or remove the chassis from the rack. See Remove the server from rack.
  • Two people and one lifting device on site that can support up to 400 lb (181 kg) are required to perform this procedure. If you do not already have a lifting device available, Lenovo offers the Genie Lift GL-8 material lift that can be purchased at Data Center Solution Configurator. Make sure to include the Foot-release brake and the Load Platform when ordering the Genie Lift GL-8 material lift.

Procedure

  1. Make preparation for this task.
    1. Remove all the rear fans. See Remove a rear hot-swap fan.
    2. Remove the rear top cover. See Remove the rear top cover.
    3. Remove the front top cover. See Remove the front top cover.
    4. Remove the CPU complex. See Remove the CPU complex.
    5. Remove the power complex. See Remove the power complex.
  2. Remove the rear fan cage support bracket.
    1. Unfasten the eight M3 screws that secure the rear fan cage support bracket to the the chassis.
    2. Unfasten the four M3 screws that secure the rear fan cage support bracket to the fan cage.
    3. Grasp the rear fan cage support bracket to lift it from the fan cage.
    Figure 1. Removing the rear fan cage support bracket
    Removing the hose cover
  3. Disconnect the cable from the rear fan control board.
  4. Remove the rear fan control board.
    1. Unfasten the five M3 screws that secure the rear fan control board to the bracket.
    2. Grasp the rear fan control board and lift it out of the chassis.
    Figure 2. Rear fan control board removal
    Rear fan control board removal

After you finish

  1. Install a replacement unit. See Install a rear fan control board.
  2. If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.