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OptiPlex 3040 - Small Form Factor 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. Processor
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. Memory
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. Video
Feature Specification
IntegratedIntel HD Graphics 530 / 510
DiscretePCI Express x16 graphics adapter
Table 4. Audio
IntegratedRealtek HDA Codec ALC3234
Table 5. Network
IntegratedRealtek RTL8111HSD-CG Gigabit Ethernet LAN 10/100/1000 Mb/s controller
Table 6. System 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
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
PCI express x1Half height card
PCI express x16Half height card
Table 9. Drives
Externally accessible (5.25-inch drive bays) Two 
Optical driveOne 
Table 10. External connectors
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: two
  • 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
Feature Specification
PCI Express x16 data width (maximum) — 16 PCI Express lanes 164-pin connector
Serial ATATwo 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 jumper 2-pin connector
Password clear jumper 2-pin connector
RTC reset jumper2-pin connector
Internal speaker4-pin connector
Intruder connector3-pin connector
Power connector

One 8-pin for PSU, one 4-pin for CPU, one 6-pin for SATA power

Table 12. Controls and lights
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. Power
  • NOTE: Heat dissipation is calculated by using the power supply wattage rating.
Power WattageMaximum Heat DissipationVoltage
 180 W614 BTU/hr100 V AC to 240 V AC, 50 Hz to 60 Hz, 3A/1.5A
Coin cell battery3 V CR2032 lithium coin cell
Table 14. Physical dimension
Height290.00 mm (11.42 inches)
Width93.00 mm (3.66 inches)
Depth312.00 mm (8.38 inches)
Weight6.00 kg (13.22 lb)
Table 15. Environmental
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 3048 m (–50 to 10,000 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

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