Dell OptiPlex 3020–Mini Tower Owner's Manual

Technical Specifications

  • NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view information about your computer.
Table 1. System Information
Feature Specification
Processor type Intel Core i3 / i5 series
Total Cache upto 8 MB
Chipset Intel H81 Chipset
Table 2. Memory
Feature Specification
Type up to 1600 MHz DDR3 Synch DRAM Non-ECC memory
Speed 1600 MHz
Connectors 2 internally accessible DDR3 DIMM sockets
Capacity Up to 8 GB
Minimum Memory 2 GB
Maximum memory 16 GB
Table 3. Video
Feature Specification
Video Controller

Integrated: Intel HD Graphics 4600/ HD Graphics 4400/ HD Graphics

  • 2 GB AMD Radeon R7 250
  • 1 GB AMD Radeon R5 240
Video memory shared memory
Table 4. Audio
Feature Specification
Controller Intel Realtek ALC3220 High Definition Audio
Speaker single 4–ohms speaker in both the left and right speaker assembly
Internal microphone support single digital microphone
Volume controls volume up/down buttons, program menus, and keyboard media-control keys
Table 5. Communications
Feature Specification
Network adapter Intel 10/100/1000 Mbps Ethernet LAN on system board
Table 6. Drives
Feature Specification
Externally accessible: ODD is externally accessible
Internally accessible HDD is internally accessible
Table 7. Ports and Connectors
Feature Specification
  • one audio input/microphone port
  • one headphone port
Network Adapter support Broadcom NetXtreme 10/100/1000 PCIe Gigabit Networking Card
Serial support Serial / PS/2 Add-in Bracket or Serial / Parallel Port PCIe Add-in Card
Parallel Serial / Parallel Port PCIe Add-in Card
USB 2.0 two connectors in the front panel , four connectors on the back panel and one internal
USB 3.0 two connectors on the back panel
Table 8. Controls and Lights
Feature Specification
Front of the computer:  
Power button light White light — Solid white light indicates power-on state; Breathing white light indicates sleep state of the computer.
Drive activity light White 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 adapter Yellow light — A blinking yellow light indicates that network activity is present.
Power supply diagnostic light 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.
Table 9. Power
Feature Specification
Coin-cell battery 3V Lithium CR2032
Voltage 90 VAC to 264 VAC
Wattage 290 W
Maximum heat dissipation N/A
  • NOTE: Heat dissipation is calculated by using the power supply wattage rating.
Table 10. Physical
Feature Specification
Height 360 mm (14.17 inches)
Width 175 mm (6.89 inches)
Depth 417 mm (16.41 inches)
Weight 7.6 Kgs (16.75 lb)
Table 11. Environmental
Feature Specification
  Operating 10 degrees to 35 degrees
  Storage -40 degrees to 65 degrees
Relative humidity (maximum):  
  Operating 20 R.H. to 80 R.H.
  Storage 5 R.H. to 95 R.H.
Maximum vibration:  
  Operating 0.26 Grms
  Storage 1.37 Grms
Maximum shock:  
  Operating 40 G/2 ms
  Storage 50 G/19 ms
  Operating –15.2 m to 3048 m (–50 to 10,000 ft)
  Storage –15.20 m to 10,668 m (–50 ft to 35,000 ft)
Airborne contaminant level G1 or lower as defined by ANSI/ISA-S71.04-1985

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