Dell OptiPlex 3020M Owner's Manual


NOTE: Offerings may vary by region. For more information regarding the configuration of your computer, click Start Start icon(Start icon) > Help and Support, and then select the option to view information about your computer.
Table 1. Processor
Processor type
  • Intel Pentium
  • Intel Celeron
  • Intel Core i3 series
  • Intel Core i5 series
Total cacheUp to 8 MB cache depending on processor type
Table 2. Memory
Memory type DDR3
Memory speed 1600MHz
Memory connectorstwo DIMM slots
Memory capacity2 GB, 4 GB, and 8 GB
Minimum memory 2 GB
Maximum memory16 GB
Table 3. Video
Feature Specification
IntegratedIntel HD Graphics
Table 4. Audio
IntegratedRealtek HDA Codec ALC3234
Table 5. Network
IntegratedRealtek RTL8151GD Ethernet capable of 10/100/1000 Mb/s communication
Table 6. System Information
System chipset

Intel H81 chipset

Table 7. Expansion Bus
Bus typeUSB 2.0, USB 3.0, SATA 3, and PCle G2
Bus speed480 Mbps, 5 Gbps, 6Gbps, and 5 Gbps,
Table 8. Cards
WLAN card

Intel Dual Band Wireless-AC 7260 (M.2)

802.11 ac

Bluetooth 4.0

WiDi (Wireless Display)

NOTE: For optimal performance, it is recommended to use the wireless display feature with an access point that supports 5 GHz standard.
Table 9. Drives
Internally Accessible: 2.5-inch SATA drive bays
Table 10. External Connectors
Feature Specification
Front panelone global headset and one microphone connector ( re-taskable to headphone )
Network adapter one RJ–45 connector
SerialPS2 or serial connector (optional)
USB 2.0 (Front/Rear/Internal)1/3/1
USB 3.0 (Front/Rear/Internal)1/1/0
  • 15-pin VGA connector
  • one 20-pin Display port connectors
Table 11. Controls and Lights
Feature Specification
Front of the computer:
Power button lightWhite light — Solid white light indicates power-on state; breathing white light indicates sleep state of the computer.
Drive activity lightWhite light — Blinking white light indicates that the computer is reading data from or writing data to the hard drive.
Back of the computer:
Link integrity light on integrated network adapter 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.
Network activity light on integrated network adapterYellow light — A blinking yellow light indicates that network activity is present.
Power supply diagnostic lightGreen 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.
Table 12. Power
Items WattageVoltage
Power adaptor65 W19.5 VDC, 3.34 A
Coin-cell battery3 V CR2032 lithium coin cell
Table 13. Physical Dimension
PhysicalMicro Entry
Height18.2 cm (7.17 inches)
Width3.6 cm (1.42 inches)
Depth17.6 cm (6.93 inches)
Weight1.28 kg (2.82 lb)
Table 14. Environmental
Temperature range:
Operating5 °C to 35 °C (41 °F to 95 °F)
Non-Operating–40 °C to 65 °C (–40 °F to 149 °F)
Relative humidity (maximum):
Operating20% to 80% (non-condensing)
Non-Operating5% to 95% (non-condensing)
Maximum vibration:
Operating0.66 GRMS
Non-Operating1.37 GRMS
Maximum shock:
Operating40 G
Non-Operating105 G
Operating–15.2 m to 30482000 m (–50 to 10,0006560 ft)
Non-Operating–15.20 m to 10,668 m (–50 ft to 35,000 ft)
Airborne contaminant levelG1 or lower as defined by ANSI/ISA-S71.04-1985

Rate this content

Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\