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Dell EMC PowerEdge R7425 Installation and Service Manual

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Removing the 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 You may find the CMOS battery loss or CMOS checksum error displayed during the first instance of powering on the system after the CPU or system board replacement which is expected. To fix this, simply go to setup option to configure the system settings.
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 unit(s)
    6. Expansion card riser 1
    7. Expansion card riser 2
    8. Expansion card riser 3
    9. Processors
    10. Heat sinks
    11. IDSDM or vFlash module
    12. Internal USB memory key (if applicable)
    13. USB 3.0 module (if applicable)
    14. Memory modules and memory module blanks
    15. 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, lift the blue release pin, slide the system board toward the front of the system to disengage the connectors on the system board from the slot on the system, and lift the system board out of the system.
    Figure 1. Removing the system board
    This image shows removing the system board.

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