SPARC T4-1
 

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In this Document

Goal

Solution

References

Oracle Confidential PARTNER - Available to partners (SUN).
Reason: CAP

Applies to:

Goal

Service the SPARC T4-1 Motherboard Assembly

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To report errors or request improvements on this procedure,
please go to http://support.us.oracle.com and put a comment on Doc ID: 1412793.1
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Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE ENGINEER NEED:(IS A SITE ENGINEER AVAILABLE?)

SPARC T4-1 Server product training to be qualified as an Oracle Service personnel, requires the ability to follow steps similar to what is in the product service manual

Time Estimate: 180 minutes

TASK COMPLEXITY: 1

FIELD ENGINEER INSTRUCTIONS

PROBLEM OVERVIEW: motherboard failure

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

Removing the motherboard

Caution - The server must be fully shut down and the power cords disconnected.

Caution - This procedure involves handling circuit boards that are extremely sensitive to static electricity. Ensure that you follow ESD preventative practices to avoid damaging the circuit boards.

Caution - Components inside the chassis might be hot. Use caution when servicing components inside the chassis.

1. Stop the Oracle Solaris OS to get the OBP prompt.
2. Run the printenv command and make a note of any OBP variables that have been modified.
3. Power off the server.
4. Remove the server from the rack.
5. Attach an antistatic wrist strap.
6. Remove the top cover.
7. Swing the air duct up and forward to the fully open position.
8. Remove all PCIe/XAUI riser assemblies.

Note - Note which PCIe/XAUI slots the cards occupy.

Note - If riser 0 contains a SAS PCIe RAID HBA card, disconnect the data cables from the card.

9. Disconnect the motherboard end of the two ribbon cables and move them out of the way of the motherboard removal.
10. Disconnect the motherboard end of the three backplane cables and move them out of the way of the motherboard removal.

Note - If riser 0 contains a SAS PCIe RAID HBA card, there will only be the SATA DVD data cable connected to the motherboard.

Caution - The hard drive data cables are delicate. Ensure they are safely out of the way when servicing the motherboard.

11. If you are replacing the motherboard, remove the following components:
    - All DIMMs. Record the memory configuration so that you can recreate it on the new motherboard.
    - System configuration PROM.
    - Service processor.
    - Internal USB drive.
12. Using a No. 2 Phillips screwdriver, remove the four screws that secure the motherboard assembly to the bus bar.

Caution - Use care when removing the bus bar screws to avoid touching a heat sink, which can be dangerously hot.

Note - Set the four screws aside. You must use these screws to attach the motherboard to the bus bar during installation.

13. Loosen the captive screw securing the motherboard to the chassis.
14. Using the green handle, slide the motherboard toward the rear of the system approximately 1 cm (less than 1/2 inch).

Tip - Note the metal tab projecting into the motherboard compartment from the rear, right corner of the chassis. In the next step, use care to avoid having this tab interfere with the removal of the motherboard.

15. Angle the motherboard up and lift out of the chassis.
16. Place the motherboard assembly on an antistatic mat.


Installing the motherboard

1. Tilt the motherboard assembly to position it into the chassis.

Tip - Note the metal tab projecting into the motherboard compartment from the rear, right corner of the chassis. In the next step, use care to avoid having this tab interfere with the installation of the motherboard.

2. Hold the green handle and the back edge of the motherboard and lower it down into the chassis.

3. Slide the motherboard forward until it is aligned with the bus bar screw holes and the captive screw.

4. Tighten the captive screw that secures the motherboard.

5. Using a No. 2 Phillips screwdriver, install the four bus bar screws and tighten them until the motherboard is securely fastened to the bus bar.

Note - Be certain to use the correct screws to attach the motherboard to the bus bar. Ordinarily, these would be the bus bar screws that were removed as part of the motherboard removal procedure.

6. If you are installing a new motherboard, install the following components:
   - All DIMMs removed from the previous motherboard. Ensure that the DIMM modules are installed in the same memory configuration as they were in previously.
   - System configuration PROM.
   - Service processor.
   - Internal USB drive (if used).

7. Connect the three backplane cables that were disconnected earlier.

8. Connect the two ribbon cables that were disconnected earlier.

9. Reinstall the PCIe and PCIe/XUAI risers.

Note - If any internal HBA card is present, reconnect all internal cables that were disconnected earlier.

10. Install the top cover.

11. Install the server into the rack.

12. Attach the power cables.

13. Connect a terminal or a terminal emulator (PC or workstation) to the SP SER MGT port. If the SP detects that the new host firmware component is incompatible with SP firmware component, further action will be suspended and the following message will be delivered over the SER MGT port:

Unrecognized Chassis: This module is installed in an unknown or unsupported chassis. You must upgrade the firmware to a newer version that supports this chassis.

If you see this message, go on to Step 14, if not skip and go to Step 15.

14. Download the system firmware.

1. If needed, configure the SP network port to enable the firmware image to be downloaded.

   Refer to the Oracle ILOM documentation for network configuration instructions.

2. Download the system firmware. 

   Follow the firmware download instructions in the Oracle ILOM documentation

Note - You can load any supported system firmware version, including the firmware revision that had been installed prior to the replacement of the motherboard.

CAUTION: In case the FW upgrade via ILOM BUI fails, please use the CLI method (see example in doc 2019500.1). You may need a source of TFTP in order to upgrade firmware via CLI commands, for details refer to: Solaris[TM] Operating System: How to set-up a TFTP server. (Doc ID 1004474.1). See also doc 2076315.1 in References.

NOTE: In some cases when updating the SysFW via CLI (and during CLI execution), it may fail with the following error:

If that happens, refer to doc 1517032.1 for the workaround steps (confirmed by FSEs to be a successful workaround in resolving the issue). 

15. Power on the server.

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTION DOES THE FE/CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:
Boot system and monitor boot sequence for errors. Test functionality of system:
1. Run the Solaris "fmadm faulty" and SP/ILOM "show faulty" command (if only ALOM is supported run "showfaults -v" command) to verify that the fault has been cleared.
2. Perform one of the following tasks based on your verification results:
   * If the previous steps did not clear the fault, refer to doc 1004229.1 for information about the tools and methods you can use to diagnose and clear
     component faults.
   * If the previous steps indicate that no faults have been detected, the component has been replaced successfully. No further action is required
3. Restart software applications per applicable administration guides to resume system operation.

PARTS NOTE: https://support.oracle.com/handbook_partner/Systems/SPARC_T4_1/components.html#SystemBoard

REFERENCE INFORMATION: http://docs.oracle.com/cd/E22985_01/index.html

References

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