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Install a rear fan control board assembly

Follow instructions in this section to install a rear fan control board assembly. 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.
  • Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface.
  • 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. If necessary, align the rear fan control board with the bracket, and place it onto the bracket; then, fasten the five screws to secure the rear fan control board.
    Figure 1. Rear fan control board installation
    Rear fan control board installation
  2. Install the rear fan control board assembly.
    1. Hold the rear fan control board assembly in the correct orientation as illustrated, and slide it into the 8U GPU shuttle.
    2. Locate the four screw holes marked with A on both sides of the 8U GPU shuttle; then, fasten the four screws to secure the rear fan control board assembly.
    Figure 2. Rear fan control board assembly installation
    Rear fan control board assembly installation
  3. If necessary, attach the labels to both ends of the power cable.
    1. Attach the white space portion of the label to one end of the cable.
    2. Wrap the label around the cable and attach it to the white space portion.
    3. Repeat to attach the other label to the opposite end of the cable.
    Figure 3. Label application
    Label application
    Note
    See the table below to identify the corresponding labels for the cables.
    FromToLabel
    Rear fan control board (top): Power connectorPower distribution board: Rear fan control board (top) power connector (REAR FAN PWR2)
    • R-Fan PWR2
    • TOP PWR
    Rear fan control board (bottom): Power connectorPower distribution board: Rear fan control board (bottom) power connector (REAR FAN PWR1)
    • R-Fan PWR1
    • LOW PWR
  4. Connect the cable to the rear fan control board. See Fan control board cable routing.

After you finish

  1. Reinstall the 8U GPU shuttle. See Install the 8U GPU shuttle.
  2. Reinstall all the 2.5-inch hot-swap drives or drive bay fillers (if any) into the drive bays. See Install a 2.5-inch hot-swap drive
  3. Reinstall all the front fans. See Install a hot-swap fan (front and rear).
  4. Reinstall all the power supply units. See Install a hot-swap power supply unit.
  5. Complete the parts replacement. See Complete the parts replacement.