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Dell Precision 7920 Rack Owner's 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 hard 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. Remove the following:
    1. Air shroud
    2. Cooling fan assembly
    3. Optical drive
    4. Power supply unit(s)
    5. All expansion card risers
    6. vFlash card
    7. USB 3.0 module
    8. Internal USB key (if installed)
    9. Processor and heat sink module
    10. Processors and memory blank
      CAUTION: To prevent damage to the processor pins when replacing a faulty system board, ensure that you cover the processor socket with the processor protective cap.
    11. Memory modules
    12. 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 chassis.
    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, lift the system board, and then slide it toward the front of the chassis.
    Sliding the system board toward the front of the chassis disengages the connectors from the back of the chassis slots.
  3. Lift the system board out of the chassis.
    Removing system board

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