HPE ProLiant DL320 Gen11 - Page 69

3. Extend the mounting rails to align with the depth of the rack.
4. To install the mounting rails in a round-hole or square-hole rack, insert the pins on the mounting flanges into the rack post holes.
5. To install the mounting rails in a threaded round-hole rack, do the following:
a. Remove the pins and washers from the mounting rails.
HPE ProLiant DL320 Gen11 Server User Guide 69