Installing an additional microprocessor and heat sink

The following notes describe the type of microprocessor that the server supports and other information that you must consider when you install a microprocessor and heat sink.

1. Read the safety information that begins in 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 from the server.
   Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity. For details about handling these devices, see Handling static-sensitive devices.
3. Remove the top cover (see Removing the server top cover).
4. Remove the air baffle (see Removing the air baffle).
5. Locate microprocessor socket 2 on the system board.
6. Remove the heat-sink filler, if one is present.
7. Open the microprocessor socket release lever and retainer.
   1. Press down and out on the release lever on microprocessor socket 2 and lift up the microprocessor release lever until it stops in the fully open position.
   2. Lift the hinged microprocessor bracket frame into an open position.
      Attention: When you handle static-sensitive devices, take precautions to avoid damage from static electricity. For details about handling these devices, see Handling static-sensitive devices.

      Figure 1. Lift the bracket frame into an open position
      
      
8. Install the microprocessor:
   1. Remove the socket cover from the microprocessor socket.
      Figure 2. Microprocessor Installation
      
      
   2. Touch the static-protective package that contains the new microprocessor to any unpainted metal surface on the server.
   3. Remove the microprocessor installation tool assembly from the package. The microprocessor installation tool assembly comes with the microprocessor and microprocessor cover attached to the tool. The microprocessor comes protected between the tool and the microprocessor cover.
      Attention:

      • Do not rotate the handle on the tool until you are ready to install the microprocessor into the microprocessor socket.
      • 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.
      • Handle the microprocessor carefully. Dropping the microprocessor during installation or removal can damage the contacts.
   4. Remove the cover from the bottom of the microprocessor installation tool. Press both microprocessor cover release tabs outward (in opposite directions as shown in the illustration) and remove the microprocessor installation tool with the microprocessor attached.
      Figure 3. Microprocessor removal with microprocessor installation tool
      
      
   5. Carefully align the microprocessor installation tool over the microprocessor socket. .
      Note: The microprocessor fits only one way in the socket.

      Figure 4. Microprocessor installation alignment
      
      
   6. Twist the handle on the microprocessor tool counterclockwise to insert the microprocessor into the socket.
      Figure 5. Microprocessor insertion
      
      
   7. Take off the microprocessor installation tool from the microprocessor socket and close the microprocessor bracket frame.
   8. Carefully close the microprocessor release lever to the closed position to secure the microprocessor in the socket.
9. Install the heat sink that came with the microprocessor:
   1. Remove the plastic protective cover from the bottom of the heat sink.
      Attention: Do not touch the thermal grease on the bottom of the heat sink after you remove the plastic cover. Touching the thermal grease will contaminate it. See Thermal grease for more information.
   2. Align the screws on the heat sink with the screw holes on the system board; then, place the heat sink on the microprocessor with the thermal-grease side down.
      Figure 6. Heat sink placement
      
      
   3. Press firmly on the captive screws and tighten them with a screwdriver. The follow illustration shows the sequence in tightening the screws, which is also shown on top of the heat sink. Begin with the screw labeled as "1", then "2", "3" and finally "4". If possible, each screw should be rotated two full rotations at a time. Repeat until the screws are tight. Do not overtighten the screws by using excessive force. If you are using a torque wrench, tighten the screws to 8.5 Newton-meters (Nm) to 13 Nm (6.3 foot-pounds to 9.6 foot-pounds).
      Figure 7. Sequence in tightening the screws
      
      
10. If you installed the second microprocessor, install the two fans on Fan connector 4 and Fan connector 6 of the system board respectively (see Replacing a fan).
11. Reinstall the air baffle, (see Replacing the air baffle).
12. Reconnect any cables that you have disconnected from the adapters or system board.