Specifications

13 PowerEdge R420 Technical Guide
Feature
Description
Optical drive
Optional slim DVD or DVD+RW drive
Power supply units
Supplies power to the server
Power supply indicators
Indicates whether server has power
NIC indicators
Indicates network activity and status
PCIe slots
Connects PCIe expansion cards to the server
Ethernet connectors
Connects integrated 10/100/1000 NICs to the server
Serial connector
Connects a serial device to the server
iDRAC7 Enterprise port
Dedicated management port for optional iDRAC Ports card
Front control panel
The R420 control panel is located on the front of the chassis as shown in Figure 5. For more
information about the LCD control panel, see the Dell PowerEdge R420 Systems Owner’s Manual on
Dell.com/Support/Manuals.
Figure 5. LCD control panel
Quick Resource Locator
Dell PowerEdge 12
th
generation servers feature a Quick Resource Locator (QRL) — a model-specific
Quick Response (QR) code that is located inside the R420 chassis cover (see Figure 6). Use your
smartphone to access the Dell QRL app to learn more about the server.
Figure 6. QRL location
This QRL code allows you to:
 View step-by-step videos, including overviews of system internals and externals, as well as
detailed, concise, task-oriented videos and installation wizards
 Locate reference materials, including searchable owner’s manual content, LCD diagnostics
and an electrical overview