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PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: x64-CAP VCAP
 

Applies to:

Goal

How to Replace a Sun Server X4-2, X4-2L CPU & Heatsink.

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?:
Sun Server X4-2, X4-2L Training

TIME ESTIMATE: 60 minutes

TASK COMPLEXITY: 3

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:

PROBLEM OVERVIEW: A Sun Server X4-2, X4-2L CPU & Heatsink needs replacement

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

If the system is still up and functioning, customer should perform an orderly and graceful shutdown of applications and OS.  Then power off the server and remove the AC power cords from the system.

A data backup is not a prerequisite but is a wise precaution.

Animation videos are available to demonstrate the CPU replacement process for these servers. please refer to the following links:

• Sun Server X4-2 Service Animations MP4 and HTML versions

Please also refer to the "Oracle Sun x86 Processor Replacement Guide" for detailed instruction on CPU replacements and tool usage.

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

1. Prepare the server for service.

1. Power off the server and disconnect the power cords from the power supplies.
2. Extend the server to the maintenance position in the rack.
3. Attach an anti-static wrist strap.
4. Remove the top cover.
5. For X4-2L system remove the air baffle. For the X4-2 if servicing the CPU is location P1 the the small plastic cover over the screws will also need to be removed .

2. Identify the correct CPU removal/insertion tool.

1. The X4 systems support a 12-core processor that is slightly larger than the other processor types. Due to this size difference a different tool is needed. Cpu replacement FRUs should ship with the appropriate tool but it is recommended that the field engineer double-check to avoid the possibility of damage to the cpu or socket due to use of the wrong tool. The tools are color coded for easy identification. For a 12-core processor the tool utilizes a pink sticker to indicate the corner containing pin 1, for all other processor types the tool has a green sticker.
2. After confirming that the proper tool is available place it upon the antistatic mat until needed.

3. Removing the CPU.

1. Identify the location of the faulty CPU.  To identify a faulty CPU, press and hold the blue Fault Remind button on the motherboard.  (LED is off: CPU is operating properly, LED is on (amber): CPU is faulty and should be replaced.)
2. Gently press down on the top of the heat sink to counteract the pressure of the captive spring-loaded screws that secure the heat sink to the motherboard.  Loosen the four Phillips captive screws in the heat sink for the faulty CPU.  Using a No. 2 Phillips screwdriver turn the screws counter clockwise alternately one and one half turns until they are fully removed.
3. To separate the heat sink from the top of the CPU, gently wiggle the heat sink left and right, while pulling upward.  A thin layer of thermal compound separates the heat sink and the CPU.  This compound also acts as an adhesive. Note –Do not allow the thermal compound to contaminate the work space or other components.
4. Place the heat sink upside down on a flat surface.
5. Use an alcohol pad to clean the thermal grease from both the bottom of the heat sink and the top of the CPU. Caution –Handle CPU socket pins with extreme care. CPU and socket pins are very fragile.  A light touch can bend the CPU socket pins and damage the board beyond repair.
6. Disengage both CPU release levers by pushing down and moving it to the side away from the CPU, and then rotating the levers upward starting with the right lever (when viewing server from the front).  Repeat with left lever.
7. Lift the CPU pressure frame up to the fully open position.
8. This platform requires a custom removal/insertion CPU tool that comes with the CPU replacement FRU.  Push the removal/insertion tool button in the top center to unlock the tool.  Place the removal/insertion tool on top of the CPU.  Properly position the tool over the CPU socket and lower it into place over the CPU socket.  Ensure that the tool and CPU key corners are aligned.  To properly position the tool over the CPU socket, rotate the tool until the green triangle on the side of the tool is facing the front of the server and it is over the left side of the CPU socket when viewing the server from the front.
9. Click the tab on the removal/insertion tool to secure the tool to the CPU.  Press the release lever on the tool to release the center button and engage the CPU.  An audible click indicates that the CPU is engaged.
10. Lift the CPU out of the socket while it is still attached to the removal/insertion tool.  Grasp the tool by its sides and remove it from the server.  Turn the tool upside down and verify that it contains the CPU.
11. While holding the CPU tool up side down, press the center button on the tool to release the CPU.  Carefully grasp the CPU on the front and back edges, lift it out of the tool and carefully place the removed CPU into an anti-static container.

4. Installing the CPU.

1. Unpack the replacement CPU and place it on an anti-static mat.
2. Ensure that the two CPU socket release levers are in the fully open position and that the CPU pressure frame is in the fully open position.
3. Press the button in the center of the removal/insertion tool to the down position.  Turn the tool upside down, grasp the new CPU by its front and back edges and position the CPU (circuit side up) in the tool.  Ensure that the triangle on the corner of the CPU aligns with the triangle on the side of the CPU removal/insertion tool.  Lower the CPU into the tool.  Then press the tool release lever to release the center button and engage the CPU.  An audible click indicates that the CPU is locked in place.
4. Properly position the tool over the CPU socket and lower it into place.  Carefully align the CPU over the CPU socket.  Ensure that the notches on the sides of the CPU align with the keys on the socket.  To properly position the tool in the CPU socket, rotate the tool until the green triangle on the side of the tool is facing the front of the server and it is over the left side of the CPU socket (when viewing server from the front) and lower the tool onto the CPU socket.
5. Press the center button in the tool down to release the CPU so that it is placed in the CPU socket. Caution – Do not press down on the CPU.  Irreparable damage to the CPU or motherboard might occur from excessive downward pressure.  Do not forcibly seat the CPU into the socket.  Excessive downward pressure might damage the socket pins.
6. Remove the processor removal/insertion tool.
7. Visually check the alignment.  Close the pressure frame ensure that the pressure frame sits flat around the periphery of the CPU.
8. Engage the release levers by rotating them downward and slipping them under the catch left first and then the right one.

5. Install the CPU Heat Sink Assembly.

1. Use the syringe to apply approximately 0.1 ml of thermal grease to the center of the top of the CPU.  Do not distribute the grease.
2. Inspect the heat sink for dust and lint. Clean if necessary.
3. Carefully position the heat sink on the CPU, aligning it with the mounting posts to reduce movement after it makes initial contact with the layer of thermal grease. Caution – When handling the heat sink, be careful not to get the thermal compound grease on your fingers so as not to transfer the grease to other server components.
4. Lower the heat sink onto the CPU. Caution – Avoid moving the heat sink after it has contacted the top of the CPU.  Too much movement could disturb the layer of thermal compound, causing voids, and leading to ineffective heat dissipation and component damage.
5. Tighten the Phillips screws alternately one-half turn until they are fully seated.

 6. Return the Server to operation

1. Replace the air baffle
2. Replace the top cover
3. Remove any anti-static measures that were used.
4. Return the server to it's normal operating position within the rack.
5. Re-install the AC power cords and any data cables that were removed.
6. Power on server. Verify that the Power/OK indicator led lights steady on.

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:

Boot up system and verify full functionality

REFERENCE INFORMATION:
Sun Server X4-2 Documentation

http://docs.oracle.com/cd/E36975_01/index.html

Sun Server X4-2L Documentation

http://docs.oracle.com/cd/E36974_01/index.html

How to shutdown the Exadata database nodes and storage cells in a rolling fashion so certain hardware tasks can be performed. (Doc ID 1539451.1)

Steps to shut down or reboot an Exadata storage cell without affecting ASM (Doc ID 1188080.1)

Steps to Gracefully Shutdown and Power on a Single Node on Oracle Big Data Appliance Prior to Maintenance (Doc ID 2099858.1)

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