System board

WARNING: To reduce the risk of personal injury from hot surfaces, allow the drives and the internal system components to cool before touching them.
CAUTION: To prevent damage to electrical components, take the appropriate anti-static precautions before beginning any installation, removal, or replacement procedure. Improper grounding can cause electrostatic discharge.
CAUTION: To avoid ESD damage, when removing electrostatic-sensitive components from the failed system board, place the components on a static-dissipating work surface or inside separate antistatic bags.

To remove the system board:

Procedure
  1. Power down the node.
  2. Disconnect all peripheral cables from the node .
  3. Remove the node from the chassis.
  4. Place the node on a flat, level surface.
  5. Remove any installed PCI riser cage assemblies.
  6. Remove all rear I/O blanks.
  7. Remove the bayonet board assembly.
  8. Remove the air baffle.
  9. Remove all DIMMs.
  10. Remove the heatsink:
    1. Loosen one pair of diagonally opposite screws halfway, and then loosen the other pair of screws.
    2. Completely loosen all screws in the same sequence.
    3. Remove the heatsink from the processor backplate.
      Removing the heatsink
  11. Open each of the processor locking levers in the order indicated, and then open the processor retaining bracket.
    Opening the processor locking levers and processor retaining bracket
    CAUTION: THE PINS ON THE SYSTEM BOARD ARE VERY FRAGILE AND EASILY DAMAGED. To avoid damage to the system board, do not touch the processor or the processor socket contacts.
  12. Remove the processor from the processor retaining bracket.
    Removing the processor
  13. If installed, remove the dedicated iLO module.
    .
  14. Disconnect all cables connected to the system board.
  15. Remove the failed system board.
    Removing the system board

To replace the system board:

  1. Install the system board.
    Installing the system board
  2. Install the processor. Verify that the processor is fully seated in the processor retaining bracket by visually inspecting the processor installation guides on either side of the processor. THE PINS ON THE SYSTEM BOARD ARE VERY FRAGILE AND EASILY DAMAGED.
    Installing the processor and verifying that it is fully seated
    CAUTION: THE PINS ON THE SYSTEM BOARD ARE VERY FRAGILE AND EASILY DAMAGED. To avoid damage to the system board, do not touch the processor or the processor socket contacts.
    CAUTION: Do not press down on the processor. Pressing down on the processor might damage the processor socket and the system board. Press only in the area indicated on the processor retaining bracket.
  3. Close the processor retaining bracket. When the processor is installed properly inside the processor retaining bracket, the processor retaining bracket clears the flange on the front of the socket.
  4. Press and hold the processor retaining bracket in place, and then close each processor locking lever. Press only in the area indicated on the processor retaining bracket.
    Closing the processor bracket and locking levers
  5. Install the heatsink:
    1. Position the heatsink on the processor backplate.
    2. Tighten one pair of diagonally opposite screws halfway, and then tighten the other pair of screws.
    3. Finish the installation by completely tightening the screws in the same sequence.
      Installing the heatsink
  6. Install all components removed from the failed system board.
  7. Install the air baffle.
  8. Install the bayonet board assembly into the node.
  9. If any SATA or Mini-SAS cables are installed, secure the cables under the thin plastic covers along the side of the node tray.
  10. Connect all cables disconnected from the failed system board.
  11. Install any removed PCI riser cage assemblies and rear I/O blanks.
  12. Install the node into the chassis.
  13. Connect all peripheral cables to the nodes.
  14. Press the Power On/Standby button.

    The node exits standby mode and applies full power to the system. The system power LED changes from amber to green.