How to Replace a SPARC T8-4 Memory DIMM [VCAP]

Asset ID:	1-71-2295359.1
Update Date:	2018-03-16
Keywords:

Solution Type Technical Instruction Sure

Solution 2295359.1 : How to Replace a SPARC T8-4 Memory DIMM [VCAP]

Applies to:

SPARC T8-4 - Version All Versions and later
Information in this document applies to any platform.

Goal

How to Replace a SPARC T8-4 Memory DIMM

Solution

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ESD Caution:

Circuit boards and drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static electricity from clothing or the work environment can destroy the components located on these boards. Do not touch the components along their connector edges.
Use a Antistatic Wrist strap. Attach one end of the strap to your wrist and the other end to the chassis, depending on what type of strap you use, with the adhesive end or the metal plug.
Use an Antistatic Mat. Place ESD-sensitive components such as motherboards, memory, and other PCBs on an antistatic mat.

Contamination Caution:

Dust particles of packaging material are number one cause of datacenter contamination. Make sure to remove all packaging material, up to the ESD safe packaging material, while still being outside the datacenter.

DISPATCH INSTRUCTIONS

WHAT SKILLS ARE REQUIRED?: No special skills required, Customer Replaceable Unit (CRU) procedure

Time Estimate: 30 minutes

Task Complexity: 0

REMOVAL/REPLACEMENT INSTRUCTIONS:

PROBLEM OVERVIEW: SPARC T8-4 Memory DIMM Replacement

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

Damage Alert:

A data backup is not a prerequisite but is a wise precaution.
If the system is still up and functioning, the Customer should perform an orderly and graceful shutdown of the applications and operating system.
Then power off the server and remove the AC power cords from the system. For ALL scenarios where an AC power down or AC power cycle is required for a T8-x server, please always use the steps in doc 1571054.1 prior to physically removing AC power cables from the server.

WHAT ACTIONS ARE REQUIRED?:

Damage Alert:

Perform a visual inspection of the replacement part to make sure that there are no damaged components, connectors, bent pins, damaged packages during shipping, etc. If the part is damaged, don't install it into the system, order a new part. Handle with caution and package carefully the return part to avoid any damages during shipping.

Note:

Processor modules can be either fully populated or half-populated. In half-populated configurations DIMM fillers are not required.
All DIMMs installed in each processor module must have identical capacities and must have identical architectures (identical Oracle part numbers).

Replace a Memory DIMM

1. Prepare the server for service.

a. Power off the server and disconnect the power cords from the power supplies.
b. Attach an anti-static wrist strap.Perform the preliminary steps required for cold service procedures.

2. Remove the processor module with the faulty DIMM from the server. Remove the cover by pressing the green button near the front edge of the cover. Then slide the cover back and up off the processor module.

3. Locate the faulty DIMM(s) by pressing the blue Memory Remind button located near the connection end of the processor module.

Note - Prior to pressing the blue Memory Remind button you must verify that the green Memory Power LED next to this button is illuminated. An illuminated Memory Power LED indicates that there is power available to illuminate any memory DIMM fault LEDs once you have pressed the Memory Remind button.

4. Press the blue Memory Remind button on the processor module. This will cause the Memory DIMM Fault LEDs associated with any faulty DIMMs to illuminate for a few minutes.

5. Note the address of the DIMM next to any illuminated memory DIMM fault LED's.

6. Push down on the ejector tabs on each side of the DIMM until the DIMM is released.

Caution - DIMMs and heat sinks on the processor module may be hot.

7. Grasp the top corners of the faulty DIMM and lift it out of its slot.

8. Place the DIMM on an antistatic mat.

9. Repeat Step 6 through Step 8 for any other DIMMs you intend to remove.

Note - Processor modules can be either fully populated or half-populated. In half-populated configurations DIMM fillers are not required.

10. Unpack the replacement DIMM(s) and place on an antistatic mat.

11. Ensure that the ejector tabs on the connector that will receive the DIMM are in the open position.

12. Align the DIMM notch with the key in the connector.

Caution - Ensure that the orientation is correct. The DIMM might be damaged if the orientation is reversed.

13. Push the DIMM into the connector until the ejector tabs lock the DIMM in place. If the DIMM does not easily seat into the connector, check the DIMMs orientation.

14. Repeat Step 11 through Step 13 until all new DIMMs are installed.

15. Place the cover back onto the processor module and insert the processor module back into its slot in the server.

16. Return the Server to operation.

    a. Remove any anti-static measures that were used.
    b. Re-install the AC power cords and any data cables that were removed.
    c. Power on server. Verify that the Power/OK indicator led lights steady on.

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTIONS ARE REQUIRED 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 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_private/Systems/SPARC_T8_4/components.html#Memory

REFERENCE INFORMATION:
SPARC T8-4 Service Manual: https://docs.oracle.com/cd/E79179_01/html/E80512/index.html

Save

References

<NOTE:1571054.1> - Performing an AC power cycle on the T3/T4/T5/S7/T7/T8 Servers

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