Removing a microprocessor and heat sink

Use this information to remove a microprocessor and heat sink.

Attention

• Microprocessors are to be removed only by trained technicians.

  Important: Always use the microprocessor installation tool to remove a microprocessor. Failing to use the microprocessor installation tool may damage the microprocessor sockets on the system board. Any damage to the microprocessor sockets may require replacing 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.
• Dropping the microprocessor during installation or removal can damage the contacts.
• Do not touch the microprocessor contacts; handle the microprocessor by the edges only. Contaminants on the microprocessor contacts, such as oil from your skin, can cause connection failures between the contacts and the socket.

Note

Be sure to use the installation tool that comes with your microprocessor installation tool assembly. The tools are similar in function and design, however Tool A has one setting for installing one size of microprocessor, and supports the following families of microprocessors: E5-26xx, E5-46xx. Installation Tool B has two settings for installing two different sizes of microprocessors. The settings that are marked on Tool B are L for smaller low core microprocessors, and H for larger high core microprocessors. Installation Tool B supports the following families of microprocessors: E5-26xx, E5-46xx, E5-26xx v2, E5-46xx v2.

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

Figure 1. Microprocessor installation tools

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

1. Read the safety information that begins on Safety and Installation guidelines.
2. Turn off the server and peripheral devices and disconnect all power cords.
3. Remove the cover (see Removing the cover).
4. Remove the air baffle (see Removing the air baffle).
5. Locate the microprocessor to be removed (see System-board internal connectors).
6. Remove the heat sink.
   Attention

   Do not touch the thermal material on the bottom of the heat sink. Touching the thermal material will contaminate it. If the thermal material on the microprocessor or heat sink becomes contaminated, you must wipe off the contaminated thermal material on the microprocessor or heat sink with the alcohol wipes and reapply clean thermal grease to the heat sink.
   1. Open the heat sink retention module release lever to the fully open position.
   2. Lift the heat sink out of the server. After removal, place the heat sink (with the thermal grease side up) on a clean, flat surface.
      Figure 2. Heat sink removal
      
      
7. Open the microprocessor socket release levers and retainer.
   Figure 3. Microprocessor socket levers and retainer disengagement
   
   
   1. Identify which release lever is labeled as the first release lever to open and open it.
   2. Open the second release lever on the microprocessor socket.
   3. Open the microprocessor retainer.
      Attention

      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.
8. 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.
        Figure 4. Installation tool handle adjustment
        
        
      • If using Installation Tool B, 1 lift the interlock latch and hold it up while you 2 twist the microprocessor installation tool handle counterclockwise to the open position, and then release the interlock latch. The following illustration of the installation tool shows the location of the interlock latch and counterclockwise rotation of the handle before loading the microprocessor.
        Figure 5. Installation tool handle adjustment
        
        
   2. Align the installation tool with the screws, as shown in the following graphic, and lower the installation tool on the microprocessor. The installation tool rests flush on the socket only when it is aligned correctly.
      Figure 6. Installation tool alignment
      
      
   3. Using the following instructions for your installation tool to remove the microprocessor.
      • 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, and then lift the microprocessor out of the socket.

      Figure 7. Installation tool handle adjustment
      
      
   4. Lift the microprocessor out of the socket.
      Figure 8. Installation tool removal
      
      
9. If you do not intend to install a microprocessor on the socket, install the socket cover.
   Attention

   The pins on the socket are fragile. Any damage to the pins may require replacing the system board.
10. If you are instructed to return the microprocessor, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.