Fujitsu M10-4/M10-4S: How to remove and replace a Motherboard ( CMUU/CMUL ).

Asset ID:	1-71-1527667.1
Update Date:	2018-05-22
Keywords:

Solution Type Technical Instruction Sure

Solution 1527667.1 : Fujitsu M10-4/M10-4S: How to remove and replace a Motherboard ( CMUU/CMUL ).

Applies to:

Fujitsu M10-4 - Version All Versions and later
Fujitsu M10-4S - Version All Versions and later
Information in this document applies to any platform.

Goal

How to remove and replace M10-4/M10-4S Motherboard.

Solution

DISPATCH INSTRUCTIONS
   WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?: M10-4/M10-4S systems training
   TIME ESTIMATE: 140 minutes
   TASK COMPLEXITY: 4

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:
   PROBLEM OVERVIEW: Motherboard Faulty

   WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?:
    Having a good data backup is not a pre-requisite but is a wise precaution.
    The customer should conduct an orderly software system shutdown.

   WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE?:
    Caution - There is an electrical hazard if the power cords are not disconnected.
    All power cords must be disconnected to completely remove power from server.

    An electromagnetic strap/map is required when working with internal hardware.
    Note: The weight of the CPU memory unit is 17 kg (37.4lb) . Be sure to perform maintenance work by two people if it is mounted on the 24or higher U of the rack.
    If you work alone, you may be injured or the cabinet may be damaged.
    Note - In the case of a dual power feed, make a note of the locations of the power cords before disconnecting them to ensure that they are reinstalled correctly.

    Before replacing the CPU memory unit lower (CMUL), execute the dumpconfig command to save the system settings. When the CPU memory unit lower is replaced,
    the CPU Activation setting information and CPU Activation keys may be deleted. To restore the CPU Activation setting information and CPU Activation keys that have
    been saved with the dumpconfig command, execute the restoreconfig command.

example:
dumpconfig file:///media/usb_msd/system.cfg

In a single cabinet configuration the only way to replace is via "System/Stopped" method which entails all partitions be shut down / powered off with input power cords disconnected.
In a building block configuration, "Active/Cold" and "System Stopped" methods are available.

NOTE: After replacing the CPU memory unit lower, you can reduce your work time by switching the microSD card with the one mounted in the CPU memory unit requiring
maintenance. This eliminates the need to match the firmware version. This is only advisable if there is no issues with the microSD card.

NOTE: When replacing the CMUL use the top cover, side guides & XSCF supplied with the new CMUL. Do not move the old XSCF to the new CMUL.

DO NOT Swap the XSCFU it is keyed to the specific CMUL and is not an individual FRU.

System Stopped maintenance
1. When you conduct cold or system-stopped maintenance, make sure that you set the mode switch of the operation panel to the Service mode before you start the maintenance.
2. Stop the entire system.
3. Execute the replacefru command to release the maintenance-target cabinet from the system.
4. Remove all power cords from the PSU backplane unit of the maintenance-target cabinet.

Active/cold maintenance
1. When you conduct active/cold or system-stopped maintenance, make sure that you set the mode switch of the operation panel to the Service mode before you start the maintenance.
2. Power off the maintenance-target physical partition.
3. Execute the replacefru command to release the maintenance-target cabinet from the system.
4. Remove all power cords from the PSU backplane unit of the maintenance-target cabinet.

Replacing CPU Memory Unit
Caution - Be sure to wear an antistatic wrist strap before handling the components. If you perform the work without it, the electronic parts and the system may suffer serious damage.

Note: The M10-4S motherboard is compromised of CMUU (CPU Memory Unit Upper) and CMUL (CPU Memory Unit Lower).

As of December 2013 there are now 2 types of CMUL (Type A and Type B). The type of CMUL can be determined if a "FRAME-B" label is on the top cover of the frame. This would indicate the CMUL is type-B. If there is no label, then the CMUL would be of type-A.
The difference between the two is on the new TypeB CMUL, the PCIE cables are part of the CMUL FRU whereas on TypeA they are part of the CMUU FRU. So if replacing a TypeA CMUL or expanding and adding a CMUU on a TypeA CMUL, would need to remove the PCIE cables from CMUU and attach to CMUL. This would include removing the XSCF card to get access to the PCIE attachment points on CMUL. On a TypeB CMUL, these are part of the CMUL FRU and the above steps would not be necessary. The result is decreased maintenance time due to the fact the PCIE cables are now part of the CMUL FRU.

1. Following steps are for equipment rack model 26xx or equipment rack model 16xx. Otherwise skip to step #2. Remove all crossbar cables from the the crossbar units. Use the hook-and-loop fastener to fix the crossbar cables to the cable holder to move the cables out of the way for CMU extraction.
   Note: Record the positions of the cables before removing them to ensure that they are reinstalled correctly.
2.   If not using rack models specified above, lower the cable support.
   Note: Record the positions of the cables before removing them to ensure that they are reinstalled correctly.
3. Remove all the cables connected to the external interface on the rear of the cabinet.
4. Remove all the PCIe cassettes or the filler units of the PCIe cards.
5. If any crossbar units are available, remove all of them.
6. Loosen the three screws holding the mounting frame and then remove it.
7. Loosen the one screw securing the lever of the CPU memory unit (rear leftside) and then lower the
     right and left levers of the CPU memory unit to the horizontal position.

8.   Holding the right and left levers of the CPU memory unit pull out the CMU unit 10cm. Then remove the CMUU/CMUL assembly while supporting it by hand from the bottom.
9.   Remove the PCIe cables that connect the CMUU and CMUL in preparation for separating the CMUU / CMUL.
10. Raise the levers on the right and left sides to release the CMUU from CMUL. Remove the CPU memory unit upper or the filler unit of the CPU memory unit upper. At this point have access to remove/replace CMUU or CMUL.
11. Transfer memory to the replacement CMU.
12. Install CPU memory unit upper aligning to the 4 guides/grooves.
13. Where the label says "PUSH", firmly push the unit so that there is no space between the CPU memory unit upper and the frame of the CPU memory unit lower.
14. Install the PCIe cables that connect the CMUU and CMUL
      If replacing TypeA CMUL with TypeA CMUL, will need to move the PCIE cables from CMUU
      to CMUL. This will involve removing the XSCF unit. If replacing with TypeB above step is not
      necessary.
15. Reinsert the CMUU/CMUL assembly into chassis
16. Reinstall crossbar units if available.
17. Reinstall all PCIe cassettes or filler units of the PCIe cards.
18. Reinstall all cables to the external interface on the rear of the cabinet
19. Lift the cable support.
20. Connect all power cords to the PSU backplane unit of the maintenance target cabinet.
21. Return to the operation of the XSCF firmware replacefru command to confirm that the cabinet is incorporated into the system.
22. If the system is configured with hardware RAID

22a. Set autoboot to false:

Example: XSCF> setpparparam -p 0 -s bootscript "setenv auto-boot? false"

22b. Execute the setpparmode(8) command to deactivate the Autoboot function of the guest domain.

Example: XSCF> setpparmode -p ppar_id -m guestboot=off

22c. Start the system

Example: XSCF> poweron -a

22d. Enable RAID volume to check the status.
Execute the probe-scsi-all command to confirm that the RAID volume is not in the list.
Select a device to display the volume information and check that it is not enabled.

Example: {0} ok select /pci@8000/pci@4/pci@0/pci@0/scsi@0
{0} ok show-volumes

19e. Execute the activate-volume command to enable the RAID volume.

Example: {0} ok 0 activate-volume

22f. Execute the show-volumes command to check that the RAID volume is enabled

Example: {0} ok show-volumes

23. Switch the mode switches of the master cabinet and cabinets whose XSCFs are in the standby state to the Locked mode.
24. Execute the setdate command to set the XSCF clock if needed

OBTAIN CUSTOMER ACCEPTANCE
WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE?:
Have customer boot the system and confirm system state before leaving site.

PARTS NOTE:

REFERENCE INFORMATION:
Service Manual - http://docs.oracle.com/cd/E38160_01/index.html

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