Dell PowerEdge R920 System Owner's Manual

Removing A Processor

1. Before upgrading your system, download the latest system BIOS version from dell.com/support and follow the instructions included in the compressed download file to install the update on your system.
   NOTE:You can update the system BIOS using the Lifecycle Controller.
2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. When disconnected from the power source, press and hold the power button for three seconds to fully drain the system of stored power prior to removing the cover.
3. Open the system.
4. If applicable, remove the memory-riser blanks.
5. Remove the memory risers.
6. Remove the cooling fans.
7. Remove the memory riser and fan cage.
8. Remove the cable management tray.
9. Remove the fan tray.
   NOTE: The heat sink and processor are hot to the touch for some time after the system has been powered down. Allow the heat sink and processor to cool before handling them.

   CAUTION:Never remove the heat sink from a processor unless you intend to remove the processor. The heat sink is necessary to maintain proper thermal conditions.
10. Using a #2 Phillips screwdriver, loosen the heat-sink retention screws in an X pattern.
    NOTE:Make sure to completely torque 1 screw before starting on the next one.
11. Lift the heat sink away from the processor and set the heat sink aside.

    

    1. heat sink
    2. retention screws (4)
    3. retention sockets (4)
    4. processor

    CAUTION:The processor is held in its socket under strong pressure. Be aware that the release lever can spring up suddenly if not firmly grasped.
12. Position your thumb firmly over the processor socket-release lever near the unlock icon and release the lever from the locked position by pushing down and out from under the tab.
13. Similarly, position your thumb firmly over the processor socket-release lever near the lock icon and release the lever from the locked position by pushing down and out from under the tab. Rotate the lever 90 degrees upward.

    

    1. processor socket-release lever
    2. close-lock symbol
    3. processor
    4. processor socket-release lever
    5. open-lock symbol

14. Rotate the processor shield upward and out of the way.
    CAUTION:The socket pins are fragile and can be permanently damaged. Be careful not to bend the pins in the socket when removing the processor out of the socket.
15. Lift the processor out of the socket and leave the release lever up so that the socket is ready for the new processor.

    

    1. processor socket-release lever
    2. processor
    3. processor shield
    4. processor socket-release lever
    5. notches in processor
    6. socket keys
    7. pin 1 indicator
    8. ZIF socket

    NOTE:After removing the processor, place it in an antistatic container for reuse, return, or temporary storage. Do not touch the bottom of the processor. Touch only the side edges of the processor.

    NOTE:If you are permanently removing the processor, you must install a socket protective cap in the vacant socket to protect the socket pins and keep the socket free of dust.