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POWER7 information

SPCN card

Use this procedure to service the system power control network (SPCN) card.

  1. This unit will be serviced nonconcurrently.

    Power should be removed from the unit containing the FRU in the location field above. If this unit is powered on, power it off now. When the unit is completely powered off, disconnect the ac input source by removing the power cord from the unit. Do not apply power to the unit until directed to do so in this procedure.

  2. Remove the cable-management bracket
    1. Label, then disconnect the ac power cords from the back of the system.
    2. Remove the cable-management bracket retaining screw (A).
  3. Remove the power supplies
    1. Rotate the power supply handle (A) in the direction shown to unseat the power supply.
    2. Pull the power supply straight out from the I/O subsystem.
    3. Repeat these steps to remove the other power supply.
    4. Turn the blue thumbscrews (B) in the direction shown to unlock the PCI shuttle assembly.
  4. Remove the PCI shuttle assembly
    1. Label, then disconnect all GX, PCI, and SPCN cables from their adapters.
    2. Slide the PCI shuttle assembly from the I/O subsystem as shown in the diagram.
  5. Remove the SPCN card
    1. Remove the screw (A).
    2. Carefully pull the SPCN card from the PCI shuttle assembly, retaining clip (B) by lifting it, as shown in the figure.
  6. Install the SPCN card
    1. Carefully push the SPCN card into its slot in the PCI shuttle assembly.
    2. Install the screw (B).
    3. Reinstall the SPCN card retaining clip (A) by pushing it down, as shown in the figure.
  7. Install the PCI shuttle assembly
    1. Slide the PCI shuttle assembly into the I/O subsystem as shown in the diagram.
    2. Connect all GX, PCI, and SPCN cables that were previously removed from their adapters.
  8. Install the power supplies
    1. Turn the blue thumbscrews (A) in the direction shown to lock the PCI shuttle assembly.
    2. Push the power supply straight into the I/O subsystem.
    3. Rotate the power supply handle (B) in the direction shown to seat the power supply.
    4. Repeat the steps to install the other power supply.
  9. Install the cable-management bracket
    1. From the back of the rack, install the cable-management bracket retaining screw (A).
    2. Reconnect the ac power cords to the back of the system.
  10. Verify the repair
    Go to Verification Procedures.


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Last updated: Tue, September 30, 2014