NVIDIA DGX A100 Service Manual
Do not use the top holes, as those will be used for the captive screw in the chassis.
6. Conrm that the rails have been installed properly.
▶ Both sides are installed on the same rack unit and are horizontal to each other.
▶ The bottom lip is at the same height on all four posts.
▶ The metal clips are properly attached.
▶ Four screws are installed - at head on the front and pan head on the back.
21.2. Installing the Cage Nuts
The DGX A100 server is secured to the rack using four captive screws - one at each corner of the front
of the unit.
▶ If your rack has round holes with 10-32 threads, then the screws will attached directly to the rack
mounting holes.
▶ If your rack has square holes, then you need to install the included cage nuts to provide attach-
ment points for mounting the DGX A100 server to the front of the rack.
The number of cage nuts to install depends on the type of rack that is used. On most racks, cage
nuts are needed only for the top screws. The bottom screws will attach to the threads in the rails. The
image on the left side of the following diagram shows this type. Green arrows indicate the general
area for the cage nuts.
The image on the right side shows a rack with square posts such that the rail does not meet the
front-most part of the rack, In this rack, cage nuts need to be installed at the bottom holes as well,
as indicated by the green arrows. All four cage nuts are also needed if you have installed a rack shelf
instead of rack rails.
21.2. Installing the Cage Nuts 97
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