Skip to main content
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.

OptiPlex 3040 - Mini Tower Owner's Manual


NOTE:Offerings may vary by region. For more information regarding the configuration of your computer in:
  • Windows 10, click or tap Start Start icon > Settings > System > About.
  • Windows 8.1 and Windows 8, click or tap Start Start icon > PC Settings > PC and devices > PC Info.
  • Windows 7, click Start Start icon, right-click My Computer, and then select Properties.
Table 1. ProcessorThe following describes the computer’s processor information:
Processor type
  • 6th Generation Intel Core i3/i5/i7 series
  • Intel Celeron
  • Intel PDC
Total cacheUp to 8 MB cache depending on processor type
Table 2. MemoryThe following describes the computer’s memory information:
Type DDR3L
Speed 1600 MHz
ConnectorsTwo UDIMM slots
Memory module capacity 2 GB,4 GB and 8 GB
Minimum memory 2 GB
NOTE:The minimum memory may differ based on the operating system installed on the computer.
Maximum memory16 GB
NOTE:Each UDIMM slot supports a minimum of 4 GB and a maximum of 8 GB.
Table 3. VideoThe following describes the computer’s video information:
Feature Specification
IntegratedIntel HD Graphics 530 / 510
DiscretePCI Express x16 graphics adapter
Table 4. AudioThe following describes the computer’s audio information:
IntegratedRealtek HDA Codec ALC3234
Table 5. NetworkThe following describes the computer’s Ethernet port information:
IntegratedRealtek RTL8111HSD-CG Gigabit Ethernet LAN 10/100/1000 Mb/s controller
Table 6. System information The following describes the computer’s chipset information:
System chipsetIntel H110
DMA channelsTwo 8237 DMA controllers with seven independently programmable channels
Interrupt levelsIntegrated I/O APIC capability with 24 interrupts
BIOS chip (NVRAM)16 MB
Table 7. Expansion bus The following describes the computer’s external ports information:
Bus typePCIe gen3 (x16), USB 2.0, and USB 3.0
Bus speedPCI Express:
  • x1 -slot each direction speed – up to 985 MB/s
  • x16-slot each direction speed–16 GB/s
SATA: 1.5 Gbps, 3.0 Gbps, and 6 Gbps
Table 8. Cards The following describes the computer’s external cards’ information:
PCI express x1Full height card
PCI express x16Full height card
Table 9. DrivesThe following describes the computer’s hard drive and optical drive information:
Externally accessible (5.25-inch drive bays)Two
Optical driveOne
Table 10. External connectorsThe following describes the computer’s external connectors’ information:
Feature Specification
Front panelUniversal Audio Jack
Back panelLine out connector
Network adapter RJ-45 connector
Serial9-pin connector; 16550 C compatible (optional)
Parallel25-pin connector (optional)
USB 2.0
  • Front panel: N/A
  • Back panel: two
USB 3.0
  • Front panel: two
  • Back panel: two
  • 19-pin HDMI connector
  • 20-pin DisplayPort connector
  • 15-pin VGA connector (optional)
NOTE:Available video connectors may vary based on the graphics card selected.
Keyboard and mouseBack panel:
  • PS2 Keyboard 6-pin connector (optional)
  • PS2 Mouse 6-pin connector (optional)
Table 11. Internal connectors The following describes the computer’s internal connectors’ information:
Feature Specification
PCI Express x1 data width (maximum) — one PCI Express lane36-pin connector
PCI Express x16 data width (maximum) — 16 PCI Express lanes164-pin connector
Serial ATAThree 7-pin connectors
MemoryTwo 240-pin connectors
Internal USB10-pin connector
System fan4-pin connector
Front panel control5-pin connector
Processor1151-pin connector
Processor fan4-pin connector
Service mode/Password clear/RTC reset jumper6-pin connector
Internal speaker4-pin connector
Intruder connector3-pin connector
Power connector

One 8-pin for PSU, one 4-pin for CPU, one 8-pin for SATA power

Table 12. Controls and lights The following describes the computer’s light information:
Feature Specification
Front of the computer
Power button lightWhite light — Solid white light indicates power-on state; slow blinking white light indicates sleep state of the computer.
Drive activity lightWhite light — Slow 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 10 Mbps connection exists between the network and the computer.
  • Green — a 100 Mbps connection exists between the network and the computer.
  • Orange — a 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 13. PowerThe following describes the computer’s power information:
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
Power WattageMaximum Heat DissipationVoltage
240 W819.00 BTU/hr100 V AC to 240 V AC, 50 Hz to 60 Hz, 4A/2A
Coin cell battery3 V CR2032 lithium coin cell
Table 14. Physical dimensionThe following describes the computer’s physical dimension information:
Height350.00 mm (13.77 inches)
Width154.00 mm (6.06 inches)
Depth274.00 mm (10.78 inches)
Weight8.00 kg (17.64 lb)
Table 15. EnvironmentalThe following describes the computer’s environmental information:
Temperature range
Operating5°C to 35°C (41°F to 95°F)
Storage–40°C to 65°C (–40°F to 149°F)
Relative humidity (maximum)
Operating20 percent to 80 percent (non-condensing)
Storage5 percent to 95 percent (non-condensing)
Maximum vibration
Operating0.26 Grms
Storage2.20 Grms
Maximum shock
Operating40 G
Storage105 G
Operating–15.2 m to 30482000 m (–50 to 10,0006560 ft)
Storage–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: <>()\