Dell PowerEdge C1100 Guide De Mise En Route page 10

6 Push or pull the blue tab located near the front of the system and slide the
system into the rack. Tighten the thumbscrews to secure the ears of system
to the front of the rack.
Optional – Connecting the Keyboard, Mouse, and Monitor
Connect the keyboard, mouse, and monitor (optional).
The connectors on the back of your system have icons indicating which cable
to plug into each connector. Be sure to tighten the screws (if any) on the
monitor's cable connector.
8
Getting Started With Your System