Dell PowerEdge R220 - System Setup and Boot Manager; Keystrokes for System Setup and Boot Manager

Dell PowerEdge R220 Technical Guide 11
Figure 3 and Figure 4 detail key aspects of the internal chassis.
Figure 3. Internal view
Figure 4. Internal chassis view
2.5” or 3.5” hard drive cage
Power supply
Cooling shroud
DIMMs (4)
Processor heat sink
Expansion card riser
Expansion card
Expansion
card latch
Cooling fans (3)
Chassis intrusion switch
3.5” hard drive cage
Optical drive
Cable routing latch
Control panel board