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Compact black and silver ultra-small desktop tower with included keyboard and mouse

DELL

DELL OptiPlex 790 USFF i5-2400 3.10GHz 8GB DDR3 1TB DVD-RW Windows 10 Pro desktop PC

SKU CH-J2XC-QHA42

Ultra-small desktop with a quad-core i5-2400 at 3.10GHz, 8GB DDR3, 1TB hard drive, DVD-RW and Windows 10 Pro

  • TypeStudent / Home Office
  • Form FactorUltra Small
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel 2nd Gen QUAD Core i5 Processor
  • Processor Main Features64 bit Quad-Core Processor

SSD None

HDD 1TB

  • Quad-core i5-2400 at 3.10 GHz handles multitasking smoothly
  • 8 GB DDR3 memory keeps everyday applications responsive
  • 1000 GB hard drive stores large media libraries
  • 16X DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit pre-installed for immediate productivity

Ultra-Small Form Factor Desktop

The Dell OptiPlex 790 USFF is an ultra-small desktop computer built around a 2nd Generation Intel quad-core i5-2400 processor running at 3.10GHz. It ships with 8 GB of DDR3 memory and a 1000 GB hard drive, providing a ready-to-use platform for everyday office tasks and home computing. Windows 10 Professional 64-bit comes pre-installed alongside a USB keyboard and mouse.

Thermals Noise and Power

The compact USFF chassis houses the 64-bit quad-core CPU, integrated Intel HD Graphics 2000 and a 16X DVD±RW drive within a space-saving black and silver enclosure. Integrated graphics and a single mechanical drive keep heat output and acoustic levels modest during typical productivity workloads. A Gigabit Ethernet port handles wired networking without adding a discrete controller card.

Build Integration

Expansion is provided through PCI, PCI Express x16, parallel, serial and multiple USB 2.0 ports for adding peripherals or legacy devices. The included restore media simplifies operating system recovery if required. Buyers who need more storage bays, a dedicated graphics card slot with auxiliary power or a larger motherboard form factor should consider a different chassis style.

Highlights

  • Quad-core i5-2400 at 3.10 GHz handles multitasking smoothly
  • 8 GB DDR3 memory keeps everyday applications responsive
  • 1000 GB hard drive stores large media libraries
  • 16X DVD±RW drive reads and writes optical media
  • Windows 10 Pro 64-bit pre-installed for immediate productivity

Specifications

BrandDELL
SeriesOptiPlex
Model790
Part Number790
TypeStudent / Home Office
Form FactorUltra Small
UsageConsumer
ColorBlack/Silver
ProcessorIntel 2nd Gen QUAD Core i5 Processor
Processor Main Features64 bit Quad-Core Processor
Memory8 GB DDR3 RAM
Storage1000 GB Hard Drive (1TB)
Optical Drive16X DVD±RW Drive
GraphicsIntel HD Graphics 2000
AudioSound card - Integrated
EthernetGigabit Ethernet
KeyboardYes (USB)
MouseYes (USB)
Operating SystemWindows 10 Pro
Software IncludedWindows 10 Pro Restore Media
ChipsetIntel Q57 Express chipset
CPU TypeIntel Core i5 2nd Gen
Installed Qty1
Max Supported Qty1
CPU Socket TypeLGA 1155
GPU/VGA TypeIntel HD Graphics 2000
Memory Capacity8GB DDR3
Memory SpeedDDR3
Memory Spec4 GB x 2
Memory Slot (Total)2
Memory Slot (Available)0
Memory Slots (Available/Total)0/2
Maximum Memory Supported8 GB
SSDNo
HDD1TB
HDD InterfaceSATA
Optical Drive TypeDVD±RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
Front USB2
Front Audio Ports1
Video Ports1 VGA, 1 Display Port
Rear USB5
RJ451 port
Rear Audio Ports1x Headphone, 1x Microphone, 1x Line In
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Dimensions (H x W x D)3 x 4 x 10
Weight8

Other versions of this model

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Questions about this item

How do I install the 8 GB DDR3 RAM in the USFF chassis, and what step is often missed?

Open the small-form-factor case, align the notch on each DDR3 module with the slot key, press firmly until the retention clips click, then replace the cover; the step often missed is seating both clips fully so the module does not tilt.

What maintenance or replacement will the 1000 GB hard drive need later?

Plan to replace the 1000 GB hard drive when SMART warnings appear or performance degrades; keep the Windows 10 Pro restore media ready to reinstall the 64-bit operating system on the new drive.

What limit appears first during sustained use of the Intel HD Graphics 2000?

The Intel HD Graphics 2000 integrated GPU reaches its thermal and performance ceiling first during sustained graphical workloads, causing throttling and reduced frame rates.

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