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Dell EMC PowerEdge R740xd Installation and Service Manual

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Removing system board

Prerequisites

CAUTION:If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted to create a recovery key during program or System Setup. Be sure to create and safely store this recovery key. If you replace this system board, you must supply the recovery key when you restart your system or program before you can access the encrypted data on your drives.
CAUTION:Do not attempt to remove the TPM plug-in module from the system board. Once the TPM plug-in module is installed, it is cryptographically bound to that specific system board. Any attempt to remove an installed TPM plug-in module breaks the cryptographic binding, and it cannot be re-installed or installed on another system board.
  1. Follow the safety guidelines listed in Safety instructions.
  2. Follow the procedure listed in Before working inside your system.
  3. Remove the following:
    1. Air shroud
    2. Cooling fan assembly
    3. Rear drive cage (if applicable)
    4. Mid drive tray (if applicable)
    5. Power supply units
    6. Expansion cards and expansion card risers
    7. Integrated storage controller card
    8. Optional IDSDM or vFlash card
    9. Optional internal USB memory key (if installed)
    10. Processor and heat sink module
    11. Processor blank (if installed)
      CAUTION: To prevent damage to the processor socket when replacing a faulty system board, ensure that you cover the processor socket with the processor dust cover.
    12. Memory modules and memory module blanks
    13. Network daughter card

Steps

  1. Disconnect all cables from the system board.
    CAUTION:Take care not to damage the system identification button while removing the system board from the system.
    CAUTION: Do not lift the system board by holding a memory module, processor, or other components.
  2. Holding the system board holder, pull the blue release pin, and slide the system board toward the front of the system to disengage the connectors from the slots on the system.
  3. Incline the system board at an angle, and lift the system board out of the system.
    Figure 1. Removing system board
    This image shows removing system board.

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