DS8000 Service Documentation Version 7.5

Exchange the CEC enclosure memory card

Before you begin

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

Attention:

This is not a stand-alone procedure. Customer disruption and damage to the hardware might occur if microcode and power boundaries are not in the proper conditions for this service action.
If you were sent here by a serviceable event FRU repair, the microcode and power boundaries have already been set.
If you were not sent here by a serviceable event FRU repair, 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.

Remove the CEC enclosure memory card

Procedure

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 POWER7® server FRU might fail and require next level of support to recover.
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.
If the CEC enclosure to be repaired is beneath the management console you are logged into:
1. Move the management console laptop from the service position to the DC-UPS service position , as shown in Figure 1. Refer to Management console service positions (Model 961).
2. Push the now empty management console tray fully into the rack. See Figure 1. This allows access to the top and rear of the CEC enclosure.
Figure 1. Alternate service position
Use the CEC enclosure front and rear blue identify LEDs to determine the CEC enclosure to be repaired. Both blue LEDs should be solidly lit.
- CEC control panel blue identify LED , as shown in Figure 2.
- CEC enclosure rear blue identify LED , 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 2. CEC identify blue LEDs, front and rear
Verify the CEC enclosure is in the power-off state. See Figure 3.
1. At the rear of the CEC enclosure, view both CEC enclosure power supply DC GOOD LEDs.
2. Are both DC GOOD (output) LEDs blinking?
  - Yes, continue with the next step.
  - No, do not continue with this FRU replacement. Go to MAP4841 CEC enclosure fails to power off during service processor repair (Model 961).
Figure 3. CEC enclosure power supply LEDs (Model 961)
Disconnect the power cables (E1-J1 and E2-J1) from the CEC with the DC Good LEDs blinking. See Figure 4.
Note: The CEC enclosure power supply LEDs continue to blink for up to 20 seconds while internal power is discharged.
1. Each power cable is looped once around the CEC enclosure power supply handle and secured with a cable tie.
2. Remove the cable tie, unplug the cable and unwrap it from the handle.
Figure 4. Location codes for the CEC enclosure (rear view) (Model 961)
Observe the CEC enclosure control panel green power present icon . See Figure 5.
- If it is off, go to the next step.
- If it is slowly blinking, the CEC enclosure is still in the power-off state. DO NOT CONTINUE. Ensure that you have unplugged the power cables.
Figure 5. CEC enclosure control panel
At the front of the CEC enclosure, remove the two screws (10 mm hex head) that secure the CEC enclosure to the rack. See Figure 6.
Figure 6. Preparing the CEC enclosure for service position
Pull the CEC enclosure fully out to the service position. Ensure both slide rails latch in the full out position.
Remove the CEC enclosure service access cover. See Figure 7.
1. Loosen the two thumbscrews located at the back of the service access cover.
2. Slide the service access cover toward the back of the CEC enclosure. When the front of the service access cover has cleared the upper frame ledge, lift the service access cover up and off the CEC enclosure.
Figure 7. Removing the service access cover
Remove the memory card. See Figure 8. Unlock the card latches , lift them into the open position, and then lift the card out of the slot.
Figure 8. Removing a memory card

Install the CEC enclosure memory card

Procedure

Transfer each memory module from the old memory card to the same slot in the new memory card.
1. Unlock the memory module by pushing the locking tabs open as shown in Figure 9. Lift the memory module out of the connector. The lever action of the tabs forces the memory module out of the connector.
2. Ensure that the connector locking tabs are pushed open into the unlocked position, as shown in Figure 10, before installing a new memory module.
3. Carefully grasp the memory module along the edge and align it with the connector.
  Attention: Memory modules are keyed to prevent a memory module from being installed incorrectly. Note the location of the key tab within the memory module connector before attempting to install the memory module.
4. Push the memory module firmly into the connector until it locks.
Figure 9. Removing a memory module

Figure 10. Replacing a memory module
Install the memory card. See Figure 8.
1. The memory card memory modules must face to the right. See Figure 11.
2. Lift the card latches into the open position, lower the memory card into the slot, and then close the card latches until they snap into place.
  Note: If the memory card memory modules face to the left, the card may feel properly installed, but it will not be seated in the system planar connector. See Figure 11.
  
  Figure 11. Correct orientation to install memory card
Install the service access cover. See Figure 7.
1. Place the service access cover on top of the system, about 25 mm (1 in.) from the upper chassis ledge.
2. Hold the service access cover against the system unit and slide it toward the front of the system. The tabs of the service access cover slide beneath the upper chassis ledge.
3. Align the two thumbscrews located on the back of the service access cover with the two holes on the back of the system chassis.
4. Tighten the thumbscrews to secure the service access cover.
Push the CEC enclosure fully into the rack until it latches in place.
Install the screws that fasten the CEC enclosure in place.
Connect the power cables (E1-J1, E2-J1) to both CEC enclosure power supplies. See Figure 12.
Note: The power supply "DC Good" green LED should blink. See Figure 3.
1. Loop the power cable around the power supply handle and connect it.
2. Secure the cable with the cable tie.
Is the DC Good green LED blinking on one or both power supplies?
- Yes, go to the next step.
- No, ensure the power cables are properly connected. If no cable problem is found, call the next level of support.
Figure 12. CEC enclosure power supply cable loops
Wait up to 5 minutes for the CEC enclosure control panel green power present LED to slowly blink, as shown in Figure 5.
Note: This ensures the CEC enclosure is in the power-off state.

Is the green LED blinking?
- 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.
Return the management console laptop to the standard service position on the slide-out tray. See Figure 1.
1. Slide the empty management console tray out to the service position.
2. Move the laptop assembly from the DC-UPS service position to the standard service position . Carefully route the cable bundle.
3. Push the DC-UPS service position rails fully in.
Exit this service information center parts exchange procedure and return to the procedure that sent you here.