How to Add a New CPU and Heatsink Assembly

Use this procedure if you are adding a CPU to your server.

Before You Begin

See:

Locations of Internal Server Components

1. Prepare the server for service. See How to Prepare for Service.
2. Remove the air duct. See How to Remove the Air Duct.
3. To unlock the CPU cover, gently push downward on the CPU retaining lever and move it slightly away from the CPU.

   This action releases the lever from the retaining clip.

4. Lift the lever to its fully open and upright position.
5. Lift the CPU cover to its fully open position.
6. Remove the new CPU from its packaging.

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   Caution - ESD component damage. The CPU is highly sensitive to static electricity. Observe ESD precautions before handling the CPU. See Antistatic Procedures and Precautions.

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7. Align the small triangle on the upper-left corner of the CPU with the alignment triangle on the motherboard.

   In addition, the alignment post on the socket must engage the semicircular cutout on the CPU.

   
   
8. Set the CPU in the socket.

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   Caution - Component and motherboard damage. Do not force the CPU into the socket. The CPU does not require any force and does not need to be pushed downward. When the CPU is correctly aligned, you should be able to easily place the CPU in the socket and it should have minimal movement within the socket. Forcing a misaligned CPU into the socket can permanently damage the component and the motherboard.

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9. When the CPU is seated in the socket, close the CPU cover.
10. To secure the CPU in the socket, rotate the socket retaining lever down until it snaps into place under the retaining clip.
11. Remove the protective plastic from the base of the heatsink to expose the pre-applied thermal compound.

    The plastic cover protects the compound on the bottom of the heatsink. Do not contaminate components or the work space with the thermal compound.

12. Carefully position the heatsink over the CPU, aligning it with the threaded standoffs.

    After the heatsink contacts the CPU, take care to minimize the movement .

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    Caution - If the heatsink is moved too much during its installation, the layer of thermal compound might become uneven, leading to component damage.

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13. Lower the heatsink onto the CPU.
14. To secure the heatsink, alternately tighten the four screws.

    Alternately turn each screw one full turn until all the screws are tightened fully.

    
    
15. Install the air duct. See How to Install the Air Duct.
16. Prepare the server for operation.