How to Install a CPU and Heatsink Assembly

Before You Begin

See How to Remove a CPU and Heatsink Assembly.

1. Prepare the server module for service. See How to Prepare the Server Module for Service.
2. To remove a CPU and heatsink assembly, see How to Remove a CPU and Heatsink Assembly.
3. Ensure that the CPU socket release lever is in the fully open position.

   See frame [1] in the following illustration.

   
   
4. Align the CPU over the socket so the notches on the sides of the CPU align the with the keys on the socket.

   See frame [1] of the illustration in Step 3.

   ---

   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.

   ---

5. Gently set the CPU on the socket.

   See frame [1] of the illustration in Step 3.

   When properly aligned, the CPU sits flat in the CPU socket and has minimal side-to-side movement.

6. Close the CPU cover and lower the retaining lever securing it under the retaining clip.

   See frame [2] of the illustration in Step 3.

   This action secures the CPU in the socket.

7. Using one syringe of thermal compound (500 mg [0.2 ml]), carefully apply the compound to the top of the CPU in an X pattern, stopping short of the corners.

   See frame [3] of the illustration in Step 3.

8. Carefully position heatsink over the CPU, and align the heatsink screws with the screw holes in the motherboard.

   See frame [4] of the illustration in Step 3.

9. Lower the heatsink onto the CPU.

   ---

   Caution - Possible thermal damage. Avoid moving the heatsink 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.

   ---

10. Gently press down on the top of the heatsink to counteract the pressure of the captive spring-loaded screws, and use a number 2 Phillips screwdriver to alternately tighten each screw, 180 degrees at a time, until tight.

    See frame [5] of the illustration in Step 3.

11. Prepare the server module for operation. See Preparing the Server for Operation.
12. Update the BIOS and firmware.

    Refer to the Oracle Integrated Lights Out Manager (ILOM ) 3.0 Supplement for the Sun Blade X6275 M2 Server Module.