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Black and silver Dell OptiPlex 990 mini tower with keyboard and mouse

DELL

DELL OptiPlex 990 Mini Tower i7-2600 16 GB DDR3 1 TB HD DVD-RW Windows 10 Pro WiFi desktop PC

SKU CH-EGEC-BRQZ7

A business desktop with a quad-core i7-2600, 16 GB DDR3, 1 TB hard drive and Windows 10 Pro

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel 2nd Gen i7-2600
  • Processor Main Features64 bit Processor
  • Quad-core i7-2600 at 3.40 GHz handles multitasking
  • 16 GB DDR3 memory supports demanding workloads
  • 1 TB SATA hard drive stores large file collections
  • Windows 10 Pro 64-bit pre-installed for immediate use
  • USB keyboard and mouse included for quick setup

Dell OptiPlex 990 Mini Tower for home office

The Dell OptiPlex 990 Mini Tower is a desktop computer built for student and home office use. It runs on an Intel 2nd Gen i7-2600 processor with 64-bit architecture. The system includes 16 GB of DDR3 memory and a 3.5-inch 1 TB SATA hard drive. Windows 10 Pro 64-bit comes pre-installed with a USB keyboard and mouse included.

265 W power supply with integrated graphics

A 265 W power supply unit delivers power to the components. The Intel HD Graphics 2000 integrated graphics controller handles video output without a discrete card. Integrated audio and Gigabit Ethernet are built onto the motherboard. This combination keeps heat output and acoustic noise low during typical office workloads.

Quad-core 3.40 GHz CPU with 3.80 GHz Turbo Boost

The i7-2600 quad-core processor operates at a base frequency of 3.40 GHz and can reach 3.80 GHz with Turbo Boost across eight threads. Sustained multi-tasking performance is supported by the 16 GB DDR3 configuration. The 1 TB hard drive provides ample capacity for applications and data files over long sessions.

Highlights

  • Quad-core i7-2600 at 3.40 GHz handles multitasking
  • 16 GB DDR3 memory supports demanding workloads
  • 1 TB SATA hard drive stores large file collections
  • Windows 10 Pro 64-bit pre-installed for immediate use
  • USB keyboard and mouse included for quick setup

Specifications

BrandDELL
SeriesOptiPlex
Model990
Part Number990
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
ProcessorIntel 2nd Gen i7-2600
Processor Main Features64 bit Processor
Memory16 GB DDR3 Desktop RAM
Storage3.5" 1TB SATA Hard Drive
Optical Drive16X DVD±RW Drive
GraphicsIntel HD Graphics 2000
AudioSound card - Integrated
EthernetGigabit Ethernet
Power Supply265W
MonitorMonitor not included
KeyboardUSB Keyboard
MouseUSB Mouse
Operating SystemWindows 10 Pro
Software IncludedWindows 10 Pro Restore Media
ChipsetIntel Q67
CPU TypeIntel Core i7 2nd Gen
Installed Qty1
Max Supported Qty1
CPU Name3.40GHz
CPU Socket TypeLGA 1155
CPU Main Features64 bit Processor
GPU/VGA TypeIntel HD Graphics 2000
Graphics InterfaceIntegrated video
Memory Capacity16GB DDR3
Memory SpeedDDR3
Memory Spec4 GB x 4
Memory Slot (Total)4
Memory Slot (Available)0
Memory Slots (Available/Total)0/4
Maximum Memory Supported16 GB
SSDNo
HDD1TB
HDD InterfaceSATA
Storage Spec3.5" 1TB SATA Hard Drive
Optical Drive TypeDVD-R/RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
BluetoothYes
Front USB4
PS/22
Video Ports1 VGA, 1 Display Port
Rear USB6
RJ451 port
Rear Audio Ports1x Headphone, 1x Microphone, 1x Line In
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Dimensions (H x W x D)14.2 x 6.9 x 16.4
Weight19.55Lbs

Questions about this item

How do I install additional DDR3 memory in the 240-pin DIMM slots and which step is often missed?

Power off, unplug the cord, open the Mini Tower case, align the notch on each DDR3 module with the 240-pin slot key, press firmly until the retention clips click, then close the case before powering on.

Which components in this OptiPlex 990 Mini Tower are most likely to need replacement after several years of use?

The 3.5-inch 1 TB SATA hard drive and the 265 W power supply are the parts that typically wear out first and may require replacement.

What is the first performance limit reached when the Intel Core i7-2600 runs at 3.80 GHz Turbo Boost for extended periods?

The 265 W power supply and the Mini Tower thermal envelope limit sustained Turbo Boost operation before the processor can maintain 3.80 GHz continuously.

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