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Dell PowerEdge R720 and R720xd Owner's Manual

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Removing A Processor

  • CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
  1. Before upgrading your system, download the latest system BIOS version from support.dell.com 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. Remove the cooling shroud.
    • WARNING: 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.
  5. Using a #2 Phillips screwdriver, loosen one of the heat-sink retention sockets. Wait 30 seconds for the heat sink to loosen from the processor.
  6. Loosen the second heat-sink retention socket.
  7. Lift the heat sink away from the processor and set the heat sink aside.
    Figure 1. Removing and Installing the Processor Heat Sink The figure shows removing and installing the processor heat sink
    1. heat sink
    2. retention sockets (2)
    3. retention screws (2)
    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.
  8. Position your thumb firmly over the processor socket-release lever near the unlock icon unlock icon and release the lever from the locked position by pushing down and out from under the tab.
  9. Similarly, position your thumb firmly over the processor socket-release lever near the lock icon 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.
    Figure 2. Processor Shield Opening and Closing Lever Sequence The figure shows processor shield opening and closing lever sequence.
    1. close-lock symbol
    2. processor socket-release lever
    3. processor
    4. processor socket-release lever
    5. open-lock symbol
  10. 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.
  11. Lift the processor out of the socket and leave the release lever up so that the socket is ready for the new processor.
    • NOTE: If you are permanently removing a processor, you must install a processor/DIMM blank in the vacant socket to ensure proper system cooling. The processor/DIMM blank covers the vacant sockets for the DIMMs and the processor.
    Figure 3. Removing and Installing a Processor The figure shows removing and installing a processor.
    1. processor socket-release lever
    2. pin 1 indicator
    3. processor socket-release lever
    4. processor shield
    5. processor
    6. ZIF socket
    7. socket keys (4)
    8. notches in processor (4)
    • 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.

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