Motherboard Tray - Opening and Closing the IO door

You will need to completely remove the motherboard tray from the server in order to service the following components. If this is the case, please refer to the section that describes the procedure to remove the motherboard.

  • DIMMs (either adding or replacing)

  • Trusted Platform Module (TPM)

Preparing the Motherboard for Service

Before pulling the motherboard out of the system, the system must be shut down and cables must be removed from the system.

Caution

Wear an ESD strap during any procedure that involves touching electronic components.

  1. Shut down the system

  2. To avoid misconfigurations, label all the cables before unplugging them.

    • Label all network, monitor and USB cables

    _images/dgx-h100-rear-arrows.png
    • Unplug all power cords

    • Unplug all network, monitor and USB cables

Release the Motherboard

  1. Unlock the motherboard by loosening the captive screws that hold the ejection levers in place:

    _images/dgx-h100-captive-screws-loosen.png
  2. Pull the ejection levers to disengage the midplane connectors:

    _images/chassis-rear.png

Pull Motherboard from Chassis

  1. Pull the motherboard out until the locking mechanism in the lid engages and prevents further movement.

  2. Unscrew the thumb screws indicated by the green arrows in the following figure to release lid from the the motherboard tray:

    _images/mb-pull-chassis.png
  3. Lift the lid IO section so that it can be folded:

    _images/mb-lift-lid.png

Open the Motherboard IO Door

  1. Fold the lid IO opening section as shown in the following figure:

    _images/mb-open-lid.png
  2. Secure the folding section until it stays in place so you can work on the IO section of the motherboard:

    _images/dgx-h100-mb-io-tray-open-secure.png

Close the Motherboard IO Door

  1. Before closing the lid, make sure all components are properly installed and that nothing is blocking the lid.

  2. Slide the lid as shown in the following figure to close the motherboard IO section:

    _images/mb-lid-down.png

Lock the Motherboard Lid

  1. Close the lid so that you can lock it in place:

    _images/mb-lid-closing.png
  2. Use the thumb screws indicated in the following figure to secure the lid to the motherboard tray. Open the tray levers:

    _images/mb-securing.png
  3. Push the motherboard tray into the system chassis until the levers on both sides engage with the sides.

Insert the Motherboard

  1. Use the levers to engage the midplane connectors:

    _images/dgx-h100-mb-levers-engage.png
  2. After the levers are fully closed, tighten the green thumbscrews to hold the ejection levers in place:

    _images/mb-tray-screws.png

Finalize Motherboard Closing

  • Use the labels on the cables to reconnect them to the correct ports. After all cables are installed, plug the locking power cables in and power the system on.

    _images/dgx-h100-rear-arrows.png