Sun Netra X4200 M2 Server
 

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In this Document

Goal

Solution

References

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

Applies to:

Goal

 How to Remove and Replace a Netra X4200 M2 CPU

Solution

 
DISPATCH INSTRUCTIONS

WHAT SKILLS DOES ENGINEER NEED:
Sun X86 Servers

Task Complexity: 3

TIME ESTIMATE: 120 minutes

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

1. Shutdown of applications on server.
2. Full backup is recommended as a precaution.
3. Shutdown of OS and power down of server.

What Action Does the Engineer Need to Take:

1. Label all cables connected to the server and disconnect.
2. Remove the server from the rack.
3. Prepare antistatic measures.
4. Remove the top cover.

Step I: Remove Faulty CPU

1. Identify which CPU and heatsink you are replacing.
There is a fault LED on the motherboard for each CPU:
 - LED is off: CPU is operating properly.
 - LED is lit (amber): CPU has encountered a voltage or heat error condition.

2. Remove the CPU and heatsink from the motherboard.
3. Hold down on the top of the heatsink to prevent it from tipping unevenly while you alternately loosen the four spring-loaded mounting screws that secure the heatsink to the motherboard. Turn the screws 180-degrees at a time, then remove the screws when they are detached.
4. Twist the heatsink slightly to lift it off of the board. Turn the heatsink upside down and allow the spring in each of the four mounting holes to fall out into your hand.
   Note – Set the heatsink upside down on a clean, flat surface to prevent the thermal grease from contaminating other components.
5. Pull the CPU socket lever slightly away from the socket.
6. Pivot the lever up, into the fully open, vertical position.
7. Open the hinged plate that covers the CPU until it is in the fully open position and lift the CPU out of the socket, leaving the lever in the vertical, open position.


Step II: Install New CPU

1. Install the new CPU and heatsink.
   Note:  Mixing CPU speeds or mixing dual-core CPUs with single-core CPUs is not supported. Use two identical CPUs in your server.
2. Unpack the new CPU and heatsink.  
3. Ensure that the CPU socket release lever and retainer plate are in the fully open position.
4. Align the CPU in the socket.
   Note: Use the alignment keys in the CPU socket to match the alignment notches on the sides of the CPU.
5. Gently set the CPU onto the pins in the socket.
6. When the CPU is fully seated in the socket, pivot the hinged retainer plate down onto the top of the CPU.
7. Pivot the release lever down and into the locked position, at the side of the socket. The release lever must lock down the retainer plate as you close the lever.
8. If you are reinstalling an existing CPU or heatsink, use an alcohol pad to clean all old thermal grease from the component surface.
   Caution – Ensure that the thermal grease in the syringe supplied with the CPU is pliable and not stiff. If your syringe of grease has aged, the grease might be too stiff to adequately spread out and ensure thermal conductance.
9. Use one syringe of thermal grease (0.5 g) to carefully apply grease to the top of the CPU in three lines.
10. Turn the heatsink upright and reinstall the four springs and mounting bolts.
   Caution – Avoid moving the heatsink after it has contacted the top of the CPU. Too much movement could disturb the layer of thermal grease, leading to component damage.
11. Carefully position and align the heatsink over the CPU.
Note: The heatsink is not symmetrical and it must be aligned before you place it on the CPU. Note that the half of the Sun Microsystems logo imprinted on the top of the heatsink will create a complete logo when correctly aligned with the adjacent heatsink.
12. Lower the heatsink onto the CPU, aligning the mounting bolts with their holes on the motherboard.
13. Alternately tighten the four heatsink mounting screws 180-degrees at a time until each spring is completely compressed.
14. Install the top cover.
15. Reinstall the server in the rack.
16. Reconnecting cables to the server.
17. Power On the server.


WHAT ACTION DOES CUSTOMER NEED TO TAKE TO RETURN SYSTEM TO AN OPERATIONAL STATE:
1. Boot up server.
2. Monitor and check messages file (if Solaris or Linux) under usual load by server to check for normal CPU temperatures and operation
3. Clean the error message by using the section C - Post-Repair Procedures from the document: PSH Procedural Article for ILOM-Based Diagnosis Doc: 1155200.1.
4. Connect to BUI and eventually clear any remaining faulty component, if applicable to system board assembly, clear SEL log and reset SP.
5. For Solaris OS: If the CPU was marked as offline, turns it as online
   - Verify processor/chip's status by using the "psrinfo" command. All of them should be online. If there is one which is faulted continue with the next step.
   - Enable the faulted processor/chip back into the active configuration by using the  "psradm" command: # psradm -F -n X, whereby 'X' is the "cpuid" number faulted status.
   - Verify status of the processor/chip by using "psrinfo" command.
   
PARTS NOTE:

REFERENCE INFORMATION:
Sun Netra X4200 M2: http://docs.oracle.com/cd/E19203-01/index.html

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