Installing a microprocessor and heat sink

Use this information to install a microprocessor and heat sink in the blade server.

Notes

1. The microprocessor and heat sink assembly is a field-replaceable unit (FRU) and must be replaced by a trained service technician. To contact an IBM service representative, see Hardware service and support.
2. The heat-sink FRU is packaged with the thermal material applied to the underside. This thermal material is not available as a separate FRU. You must replace the heat sink when new thermal material is required, such as when a defective microprocessor is replaced or if the thermal material is contaminated or has come in contact with another object other than its paired microprocessor.
3. A heat-sink FRU can be ordered separately if the thermal material becomes contaminated.

To install a microprocessor and heat sink, complete the following steps.

Attention

Do not touch the contacts in the microprocessor socket. Touching these contacts might result in permanent damage to the system board.

1. Install the microprocessor and heat sink.
   Attention

   Do not use any tools or sharp objects to lift the locking lever on the microprocessor socket. Doing so might result in permanent damage to the system board.
   
   1. Rotate the locking lever on the microprocessor socket from its closed and locked position until it stops in the fully open position (approximately a 135° angle), as shown.
   2. Rotate the microprocessor retainer on the microprocessor socket from its closed position until it stops in the fully open position (approximately a 135° angle), as shown.
   3. Touch the static-protective package that contains the microprocessor to any unpainted metal surface on the BladeCenter unit or any unpainted metal surface on any other grounded rack component; then, remove the microprocessor from the package.
   4. Remove the cover from the bottom of the microprocessor.
      
   5. Center the microprocessor over the microprocessor socket. Align the triangle on the corner of the microprocessor with the triangle on the corner of the socket and carefully place the microprocessor into the socket.
      Attention

      • Do not press the microprocessor into the socket.
      • Make sure that the microprocessor is oriented and aligned correctly in the socket before you try to close the microprocessor retainer.
   6. Carefully close the microprocessor retainer.
   7. Rotate the locking lever on the microprocessor socket to the closed and locked position. Make sure that the lever is secured in the locked position by pressing the tab on the microprocessor socket.
2. Install a heat sink on the microprocessor.
   Attention

   • Do not set down the heat sink after you remove the plastic cover.
   • 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, contact your service technician.
     
   1. Remove the plastic protective cover from the bottom of the heat sink.
   2. Make sure that the thermal material is still on the bottom of the heat sink; then, align and place the heat sink on top of the microprocessor in the retention bracket, thermal material side down. Press firmly on the heat sink.
   3. Align the two screws on the heat sink with the holes on the heat-sink retention module.
   4. Press firmly on the captive screws and tighten them with a screwdriver, alternating among the screws until they are tight. 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 inch-pounds to 9.6 inch-pounds).
3. Install the bezel assembly (see Installing the bezel assembly).
4. Install the optional expansion unit, if you removed one from the blade server to replace the microprocessor and heat sink (see Installing an optional expansion unit).
5. Install the blade server cover (see Installing the blade server cover).
6. Install the blade server into the BladeCenter unit (see Installing the blade server in a BladeCenter unit).