Dell OptiPlex 3020M Owner's Manual page 52

Feature
Video
Table 25. Controls and Lights
Feature
Front of the computer:
Power button light
Drive activity light
Back of the computer:
Link integrity light on integrated network
adapter
Network activity light on integrated
network adapter
Power supply diagnostic light
Table 26. Power
Items
Power adaptor
Coin-cell battery
Table 27. Physical Dimension
Physical
Height
Width
Depth
52
Specification
• 15-pin VGA connector
• one 20-pin Display port connectors
Specification
White light — Solid white light indicates power-on state;
breathing white light indicates sleep state of the
computer.
White light — Blinking white light indicates that the
computer is reading data from or writing data to the
hard drive.
Green — A good 10 Mbps connection exists between the
network and the computer.
Green — A good 100 Mbps connection exists between
the network and the computer.
Orange — A good 1000 Mbps connection exists
between the network and the computer.
Off (no light) — The computer is not detecting a physical
connection to the network.
Yellow light — A blinking yellow light indicates that
network activity is present.
Green light — The power supply is turned on and is
functional. The power cable must be connected to the
power connector (at the back of the computer) and the
electrical outlet.
Wattage
65 W
3 V CR2032 lithium coin cell
Micro Entry
18.2 cm (7.17 inches)
3.6 cm (1.42 inches)
17.6 cm (6.93 inches)
Voltage
19.5 VDC, 3.34 A