Exchange the CEC enclosure power supply

Before you begin

Icon for electrostatic discharge wrist strapUse approved ESD procedures to prevent damage.

Attention:
  • This procedure is not a stand-alone procedure. Customer disruption and damage to the hardware might occur when microcode and power boundaries are not in the proper conditions for this service action.
  • If a serviceable event FRU repair directed you to this procedure, the microcode and power boundaries are already set.
  • If a serviceable event FRU repair did not direct you to this procedure, see MAP1230 Replace a FRU without using a serviceable event.
Notes:
  • All the cables and FRUs to be removed must be uniquely identified so they can be reinstalled correctly.
  • If an installed earthquake resistance kit prevents you from accessing this FRU, refer to MAP1600.

Preparing the CEC enclosure to remove and replace the power supply

Procedure

  1. Use a replacement part with a valid DS8000® part number to ensure it has the proper firmware, VPD, and/or configuration to ensure it is compatible with the DS8000 service procedures. Attempting to use a generic server FRU might fail and require next level of support to recover.
  2. All parts being removed must be marked or identified so they can be installed into their original locations.
    Note: Failure to do this can extend the service duration and may require next level of support assistance.
  3. The management console keyboard can be moved between the operating and stowed position as needed to allow service clearance above the CEC enclosure.
  4. Use the front and rear blue identify LEDs to determine the CEC enclosure to be repaired. Both blue LEDs should be lit.
    • CEC control panel blue identify LED Callout label B, as shown in Figure 1
    • CEC enclosure rear blue identify LED Callout label 1, as shown in Figure 2
    Note: If both the front and rear CEC enclosure identify LEDs are not lit, use the location code listed in the serviceable event FRU list. See MAP1245 Finding FRUs by using location codes.
    Figure 1. Control panel LEDs
    Control panel LEDs
    Figure 2. CEC enclosure rear LEDs
    Rear view of the CEC enclosure LEDs
  5. Verify the CEC enclosure is in the power-off state. See Figure 3.
    1. At the rear of the CEC enclosure, view all CEC enclosure power supply DC LEDs.
    2. Are all DC (output) LEDs flashing?
    Figure 3. Location of the power supplies and LEDs (Models 981, 985, 986)
    Location of the power supplies and LEDs (Models 981, 985, 986)
  6. Use the flashing identify LED to confirm the location of the power supply to be replaced. See Figure 3. If flashing identify LED cannot be seen, use the location code in the serviceable event that sent you here.
  7. Attach the electrostatic discharge (ESD) wrist strap.
    Attention:
    • Attach an electrostatic discharge (ESD) wrist strap to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.
    • When using an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
    • If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds.
  8. Disconnect the power cords Callout label B from the CEC with the DC (output) LEDs flashing. See Figure 4.
    Notes:
    • Ensure the power cords are correctly labeled.
    • The power supply LEDs might continue to flash for up to 20 seconds while internal power is discharged.
    Figure 4. Removing the power cords (Models 981, 985, 986)
    Removing the power cords (Model 981)
  9. Observe the CEC enclosure control panel green power button LED Callout label A. See Figure 5.
    • If it is off, go to the next step.
    • If it is flashing, the CEC enclosure is still in the power-off state. DO NOT CONTINUE. Ensure that you have unplugged the power cables.
    Figure 5. Control panel LEDs
    Control panel LEDs

Removing the CEC enclosure power supply

About this task

To remove the CEC enclosure power supply, complete the following steps:

Procedure

  1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
  2. To unseat the power supply from its position in the system, push the terracotta locking-tab Callout label B in the direction shown in Figure 6.
  3. To release the power cord that is strapped to the handle, unstrap the hook-and-loop fastener  D  and then pull the power cord away from the power supply Callout label C. Ensure to retain the hook-and-loop fastener  D  on the power cord.
  4. Pull the power supply Callout label C away from the system, as shown in Figure 6.
    Figure 6. Removing a CEC enclosure power supply
    Removing a CEC enclosure power supply

Replacing the CEC enclosure power supply

About this task

To replace the CEC enclosure power supply, complete the following steps:

Procedure

  1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
  2. Align the power supply Callout label C with the bay and slide the power supply into the system until the terracotta latch Callout label B locks in place, as shown in Figure 7.
    Figure 7. Replacing a power supply
    Replacing a power supply

Preparing the CEC enclosure for operation after removing and replacing the power supply

About this task

To prepare the system for operation, complete the following steps:

Procedure

  1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
  2. Reconnect the power cords Callout label A to the CEC enclosure. See Figure 8.
  3. Fasten the power cords to the enclosure using the hook-and-loop fasteners Callout label B.
    Figure 8. Connecting the power cords
    Connecting the power cords
  4. Verify the CEC enclosure has power available. See Figure 9.
    1. At the rear of the CEC enclosure, view the CEC enclosure power supply DC LEDs.
    2. Are all DC (output) LEDs flashing?
      • Yes, continue with the next step.
      • No, ensure the power cords are properly connected. If no connection problem is found, contact your next level of support.
    Figure 9. Location of the power supplies and LEDs (Models 981, 985, 986)
    Location of the power supplies and LEDs (Models 981, 985, 986)
  5. Wait up to 5 minutes for the CEC enclosure control panel power button LED Callout label A to flash. See Figure 10.
    Note: This ensures that the CEC enclosure is in the power-off state.
    Is the power button LED flashing?
    • Yes, go to the next step.
    • No, ensure the CEC enclosure power supplies are fully seated. The possible failing FRUs are the CEC enclosure system backplane, I2C interface card and cables, and control panel. You can also call the next level of support.
    Figure 10. Control panel LEDs
    Control panel LEDs
  6. Close the rear door of the rack.
  7. Exit this service information center parts exchange procedure and return to the procedure that sent you here.