Rack mounting interfaces 
The server rails can be installed in a rack that has the following mounting interfaces: 
Round-hole  Square-hole  Threaded round-hole 
The illustrations used in this procedure show an icon on the upper right corner of the image. This icon 
indicates the type of mounting interface for which the action illustrated in the image is valid. 
Rack rail options 
This server supports rack rail #3 for SFF and LFF drive configurations. 
Installing the server into the rack 
Prerequisites 
• Before you perform this procedure, review the:
◦ Rack warnings and cautions
◦ Server warnings and cautions
◦ Space and airflow requirements
• T-25 Torx screwdriver
Procedure 
1. Extend the slide rails out on the mounting rails until they hit the internal stops and lock into place.