Removing a microprocessor and heat sink

Use this information to remove a microprocessor and heat sink.

Attention

• Be extremely careful when handling the microprocessor, the microprocessor socket contacts are very fragile.
• Do not touch the microprocessor contacts. Contaminants on the microprocessor contacts, such as oil from your skin, can cause connection failures between the contacts and the socket.
• Do not use any tools or sharp objects to lift the locking levers on the microprocessor socket. Doing so might result in permanent damage to the system board.
• Do not allow the thermal grease on the microprocessor and heat sink to come in contact with anything. Contact with any surface can compromise the thermal grease and the microprocessor socket.
• Each microprocessor socket must always contain either a socket cover or a microprocessor and heat sink.
• When removing multiple microprocessors, open one microprocessor socket at a time to avoid damaging other microprocessor socket contacts.
• Be sure to use only the installation tools provided with the new microprocessor to remove or install the microprocessor. Do not use any other tool.
• The microprocessor installation tool has the microprocessor installed on the tool, and may have a protective cover over the microprocessor. Do not use the tool, or remove the cover until you are instructed to do so.

Note

This procedure for removing a microprocessor and heat sink also apply when removing a microprocessor and heat sink from the microprocessor and memory expansion tray.

There are two types of microprocessor installation tools. The tools are similar in function and design; but, have a major difference.

Important

Be sure to use the installation tool that comes with your microprocessor installation tool assembly.

• Installation Tool A has one setting for installing one size of microprocessor that supports E5-26xx and E5-46xx microprocessors.
• Installation Tool B supports E5-26xx, E5-46xx, E5-26xx v2, and E5-46xx v2 microprocessors. Installation Tool B has two settings for installing two different sizes of microprocessors. The settings on Tool B are:
  • L for smaller low core microprocessors
  • H for larger high core microprocessors

Microprocessor Installation Tools A and B are shown in the next illustration.

To remove a microprocessor and heat sink, complete the following steps:

1. Read the safety information and installation guidelines, see Safety and Installation guidelines.
2. Turn off the server (see Turning off the server) and all attached peripheral devices. Disconnect all power cords; then, disconnect all external cables as necessary to replace the device.
3. Remove the server cover (see Removing the server top cover).
4. Disconnect any cables that impede access to the heat sink and microprocessor.
5. If you are replacing a microprocessor on the system board, remove the microprocessor and memory expansion tray (see Removing the microprocessor and memory expansion tray assembly).
6. Remove the DIMM air baffle, if one is installed (see Removing the DIMM air baffle).
7. Remove the microprocessor air baffle, if one is installed (see Removing the microprocessor air baffle).
8. Remove the heat sink.
   1. Use a screwdriver to loosen the captive screw on one side of the heat sink to break the seal with the microprocessor.
   2. Loosen all the captive screws on the heat sink, rotating each screw one full turn until each screw is loose.

      

   3. Gently lift the heat sink from the microprocessor.
9. After removal, place the heat sink on its side on a clean, flat surface.
   Attention: Do not use any tools or sharp objects to lift the release levers on the microprocessor socket. Doing so might result in permanent damage to the system board.
10. Open the microprocessor socket release levers and retainer.
    1. Locate the two release levers on the microprocessor socket.
    2. Press the first release lever (on the right) down and inward toward the socket and lift it up to the fully open position; then, press the second release lever on the (left) down and inward toward the socket and lift it up to the fully open position.
    3. Open the microprocessor retainer by lifting up on the microprocessor retainer tab.

       Attention: Do not touch the contacts on the microprocessor and the microprocessor socket.

    4. Open the microprocessor socket release levers and retainer in the order that is shown.
       
       
       
11. Locate the microprocessor installation tools that come with the new microprocessor kit.
    Note

    The microprocessor FRU comes with two microprocessor installation tools: one tool is empty and one tool comes with a microprocessor and a cover on the bottom of the tool. Use the empty tool to remove the failed microprocessor.
12. Remove the microprocessor from the socket.
    1. Select the empty installation tool and ensure that the handle is in the open position. If the installation tool handle is not in the open position, use the following instructions for your installation tool:
       • If using Installation Tool A, twist the microprocessor installation tool handle counterclockwise to the open position.
       • If using Installation Tool B:
         1. Lift the interlock latch and raise the latch up.
         2. While holding the interlock latch up, twist the microprocessor installation tool handle counterclockwise to the open position; then, release the interlock latch.

         The following illustration of Installation Tool B shows the location of the interlock latch and counterclockwise rotation of the handle before loading the microprocessor.

       
       
       
    2. Align the holes on the installation tool with the screws on the microprocessor bracket, then lower the microprocessor installation tool down over the microprocessor. The installation tool rests flush on the socket only if it is aligned correctly.
       
       
       
    3. Place the microprocessor on a static-protective surface. Remove the microprocessor from the socket using the appropriate instructions for your installation tool.
       • If using Installation Tool A, gently twist the handle clockwise to the closed position and lift the microprocessor out of the socket.
       • If using Installation Tool B, gently twist the handle of the installation tool clockwise until it locks in the H or L position, depending on the size of microprocessor; then, lift the microprocessor out of the socket.

       
       
       
13. If you are instructed to return the microprocessor, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Do not return the microprocessor installation tool.