Rack Mount Kit Replacement#

This is a high-level overview of the procedure to replace a rack mount kit on the NVIDIA DGX™ B300 system.

  1. Remove the two sets of front screws and washers.

  2. Remove the two sets of rear screws and washers.

  3. Use the clips to release the front and rear from each side of the kit.

  4. Remove the cage nuts from the rack posts.

  5. Install on the new rack by using the clips to position the kit at the right height.

  6. Use the template to install the cage nuts on the right.

  7. Use the four sets of screws and washers to secure the rack mount kit in place.

Rack Mount Kit Description#

The rack mount kit acts as a shelf in the rack; it does not allow the system to be moved once installed. All components are serviceable from the front or rear.

This rack mount kit can extend lengthwise, and the distance between the posts ranges from 29 to 35 in (0.74-0.9 m).

Note

The lip at the bottom will hold the bottom of the system.

  • These prongs enter the holes of the rack (square or round).

  • Metal plates keep the rack kit in place.

  • Secure the rack mount kit to the rack with the provided screws.

  • Identify the front of the rackmount by locating the embossed labels, and note the black paint that marks the rear section.

    _images/dgx-b300-rack-1.png

  1. On the lower part, a lip labeled 1, when installed in a rack, will hold the system in place like a shelf.

  2. On either end, spring-loaded prongs, as labeled 2 on the diagram, fit into the rack’s holes (either square or round).

  3. Together with the metal clips labeled 3, they hold the rack mount kit in place for ease of installation.

  4. Labeled with a number 4 are the holes where the screws that secure the rack kit in place must be installed.

  5. Label 5 identifies where that part of the rack mount kit should be installed in the rack.

Remove Rack Mount Kit - Front#

  1. To remove the rack mount kit, first remove the flat head screw and the washer, and keep them in a safe place.

    • Push on the clip to release the rack mount kit rail from the post, and push it towards the back while holding the rail.

    _images/rack-2.png

  2. Pull on the clip to release the rack mount kit from the post so it can slide back and the prongs can be released from the post.

    1. Remove the rail from the front post and hold it in place while the rear is released.

    2. Remove all cage nuts from the rack posts so they can be used during installation.

    _images/rack-3.png

Remove Rack Mount Kit - Rear#

  1. To release the rear of the rack mount kit, remove the black screw and washer from the rear of the system.

    _images/rack-4.png

  2. Push the clip to release the rack mount kit rail from the post, then push the rail toward the front while holding the rail.

    _images/rack-5.png

Confirm Necessary Screws and Washers#

These items are in the rack mount kit box with the rack mount kit. All these components should have been removed from the previous installation.

Note

The front screws are different from the screws used for the back of the rack mount kit. If the correct screws are not used in the front, the server will not be flushed when pushed against the rack and it will be difficult to secure the other eight captive screws.

Ensure all cage nuts are removed from the rack as they will be needed to install the rack mount kit at its new location.

_images/rack-6.png

Install Cage Nuts Using Template#

A printed copy of this template is included as part of the rack kit, and it should be used to align the desired location of the system to where the included cage nuts should be installed.

The template is double-sided, so it can be used as a reference on the left and right posts of the rack.

_images/dgx-b300-rack-7.png

Note

RACKS WITH C-CHANNEL POSTS: They have an obstruction that prevents the rack mount kit from being installed in the frontmost post. Use a third pair of cage nuts so the bottom system screws have something to engage with.

_images/rack-8.png

Install Rack Mount Kit - Front#

You can start with either side to install the rack mount kit on the rack. The following instructions describe the installation of the left side.

  1. Align the lip to the bottom of the rack unit where the system needs to be installed, as shown in the diagram.

  2. Insert the prongs through the front post of the rack and secure the clip to the front post.

    _images/rack-9.png

  3. Install the flat head screw and the washer to secure the front of the rack mount kit to the rack, as shown in the diagram.

    _images/rack-10.png

Install Rack Mount Kit - Rear#

  1. Align the lip to the bottom of the rack unit where the system needs to be installed, as shown in the diagram.

  2. Insert the prongs through the front post of the rack and secure the clip to the front post.

    _images/dgx-b200-rack-11.png

  3. Install the black screw and washer to secure the front of the rack mount kit to the rack, as shown in the diagram.

    _images/rack-12.png

  4. Repeat the procedure for the right side of the rack mount kit.