How to Remove and Replace a Ultra 40 M2 Workstation CPU and Heatsink

Asset ID:	1-71-1349523.1
Update Date:	2018-04-05
Keywords:

Solution Type Technical Instruction Sure

Solution 1349523.1 : How to Remove and Replace a Ultra 40 M2 Workstation CPU and Heatsink

Applies to:

Sun Ultra 40 M2 Workstation - Version Not Applicable and later
Information in this document applies to any platform.

Goal

How to Remove and Replace a Ultra 40 M2 Workstation CPU, and Heatsink

Solution

DISPATCH INSTRUCTIONS
- WHAT SKILLS DOES THE ENGINEER NEED:The CPU should be replaced only by trained field service technicians.
- TIME ESTIMATE: 90 minutes
- TASK COMPLEXITY: 3

FIELD ENGINEER INSTRUCTIONS:
- PROBLEM OVERVIEW:How to Remove and Replace a Ultra 40 M2 Workstation Memory CPU and Heatsink
- WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?:

A data backup is not a pre-requisite but is a wise precaution.
The customer should conduct an orderly software system shutdown.

Then power down the system and disconnect the Power Cord.

- WHAT ACTION DOES THE ENGINEER NEED TO TAKE:
Each CPU is associated with a heatsink, which must be replaced with the CPU.
On single CPU systems, a bridge plug is plugged in to the CPU1 socket.
Note - System cooling might be affected by dust and contaminant build-up. It is recommended that systems be opened and checked approximately every six months or more often in dirty operating environments. Check system heatsinks, fans, and air openings. If necessary, clean systems by brushing or blowing contaminants or carefully vacuuming contaminants from the system.

1. Power off the system, open and position the chassis, and remove the access panel.

I. Power off and disconnect the monitor, keyboard, mouse, network connections, and any peripherals.
II. Disconnect the power cord from the workstation.
III. Press down the two latches on the side cover and lift the cover off the workstation.
IV. Using both hands, place the workstation on its side.
V. Pivot the workstation support leg underneath the workstation.
VI. Remove the access panel:
a. Slide the lock block to the front of the system.
b. Press and release the two latches and lift the access panel.
VII. Attach the antistatic wrist strap.
VIII. If your procedure requires it, lift the fan module up and out.
IX. Find the removal or replacement procedure you need.

Removing a CPU from an Ultra 40 M2

1. Unfasten the heatsink power cable from the motherboard connector labeled CPU0 Fan or CPU1 Fan.
Caution - Heatsinks can get extremely hot. To avoid personal injury, allow sufficient time for them to cool before touching them.
2. Loosen the two Phillips screws fastening the heatsink to the motherboard.
3. Disconnect the heatsink power cable from the CPU0 Fan or CPU1 Fan connector on the motherboard.
4. Lift the heatsink gently up, exposing the CPU.
Place the heatsink upside down on a 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
8. Open the hinged plate that covers the CPU until it is in the fully open position
9. Lift the CPU out of the socket, leaving the lever in the vertical, open position
Place it on an antistatic mat.

Replacing a CPU in an Ultra 40 M2

1. Remove the new CPU from its antistatic wrapping.
Caution - Handle the CPU carefully, by its edges. Place it on an antistatic mat when you are not handling it.
2. Ensure that the CPU socket retaining lever is in the upright position.
3. Align the CPU with the alignment keys
Note - Use the alignment keys in the CPU socket to match the alignment notches on the sides of the CPU
When it is properly aligned, the CPU slips easily into its slot. Do not force it or allow the pins to bend.
4. Press down on the socket retaining lever so it is in the fully closed position.
5. Do one of the following:

     * If you are installing a new CPU:
              a. Clean any contamination from the top of surface of the CPU, using the supplied alcohol wipe.
              The heatsink assembly already has thermal grease applied. You do not need to apply additional thermal grease.
              b. Remove the plastic cover from the heatsink/fan assembly.

      * If you are replacing an already used CPU on a new motherboard:
              a. Remove the grease from the CPU and remove the thermal interface material from the heatsink using the alcohol wipe supplied with the motherboard.
              b. Use the syringe that is supplied with the motherboard to apply approximately 0.5 ml of thermal grease to the center of the top of the CPU.
              Empty the entire syringe onto the chip.
              c. Using the wrapper of the alcohol wipe or a finger inserted into a clean plastic bag, spread out the thermal grease to a thin uniform thickness over the CPU.
Caution - Do not use an unprotected finger to spread the thermal grease, as the oils present will degrade the performance.
6. Inspect the heatsink for dust and lint, and clean it if necessary.
7. Place the heatsink over the CPU, so that the captive screws align with the receptacles.
Ensure that the "Air Flow" symbol on top of the heatsink points toward the workstation back panel.
8. Tighten the Phillips screws until the heatsink is firmly in place.
9. Connect the heatsink power cable to the motherboard connector labeled CPU0 fan or CPU1 Fan.
10. Inspect the CPU and motherboard to ensure that all connectors are properly connected.
11. Verify that you have not left any tools, loose screws, or loose components inside the system.
12. Replace the fan tray if you removed it.
13. If you are finished working, install the side cover and the access panel, power on the system, and verify the installation.

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

PARTS NOTE:

REFERENCE INFORMATION:
Sun Ultra 40 Workstation Service Manual
http://download.oracle.com/docs/cd/E19127-01/ultra40m2.ws/820-0123-13/

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