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Black and silver Dell OptiPlex 790 mini tower desktop with DVD-RW drive

DELL

DELL OptiPlex 790 Mini Tower i5-2400 16GB DDR3 128GB SSD 2TB HDD

SKU CH-E5P9-9STGT

A mini-tower desktop with a quad-core Intel i5-2400 processor, 16 GB DDR3 memory, 128 GB SSD plus 2 TB hard drive, DVD-RW drive, Gigabit Ethernet, USB Wi-Fi dongle and Windows 10 Pro

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel 2nd Gen i5-2400
  • Processor Main Features64 bit Quad-Core Processor

Memory Capacity 16GB DDR3

  • Quad-core Intel i5-2400 at 3.10 GHz handles everyday multitasking
  • 16 GB DDR3 memory keeps multiple apps responsive
  • 128 GB SSD plus 2 TB HDD gives fast boot and ample storage
  • DVD±RW drive reads and writes optical media
  • Gigabit Ethernet and USB Wi-Fi dongle provide wired and wireless network access

Dell OptiPlex 790 Mini Tower

The Dell OptiPlex 790 Mini Tower is a desktop computer built around an Intel 2nd Gen i5-2400 quad-core processor running at 3.10 GHz with a 3.40 GHz turbo boost. It comes equipped with 16 GB of DDR3 memory, a 128 GB solid-state drive and a 2 TB hard drive. Windows 10 Pro 64-bit is pre-installed. A USB keyboard and mouse are included in the box.

Who this suits and who should look elsewhere

This system suits students, home-office workers and general users who need a responsive machine for web browsing, document editing and light multitasking. The dual-drive layout gives fast boot times plus large bulk storage. Buyers who need dedicated graphics performance for modern gaming or GPU-accelerated creative workloads should look elsewhere, as the platform relies on integrated Intel HD Graphics 2000 only.

Capacity and headroom

The 128 GB SSD handles the operating system and frequently used applications comfortably, while the 2 TB hard drive provides ample room for media libraries, backups and project files. 16 GB of DDR3 memory offers headroom for running multiple browser tabs and office suites simultaneously. The 265 W power supply and Mini Tower chassis limit the scope for adding high-power expansion cards or additional internal drives.

Highlights

  • Quad-core Intel i5-2400 at 3.10 GHz handles everyday multitasking
  • 16 GB DDR3 memory keeps multiple apps responsive
  • 128 GB SSD plus 2 TB HDD gives fast boot and ample storage
  • DVD±RW drive reads and writes optical media
  • Gigabit Ethernet and USB Wi-Fi dongle provide wired and wireless network access

Specifications

BrandDELL
SeriesOptiPlex
Model790
Part Number790/990
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
ProcessorIntel 2nd Gen i5-2400
Processor Main Features64 bit Quad-Core Processor
Memory16 GB DDR3 Desktop RAM
Storage2.5" 128 GB Solid State + 3.5" 2TB Hard Drive
Optical DriveDVD±RW Drive
GraphicsIntel HD Graphics 2000
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless CardUSB Dongle
Power Supply265W
CaseMini Tower
KeyboardUSB Keyboard
MouseUSB Mouse
Operating SystemWindows 10 Pro
Software IncludedWindows 10 Installed
ChipsetIntel Q67
CPU TypeIntel Core i5 2nd Gen
Installed Qty1
Max Supported Qty1
CPU Name3.10GHz
CPU Socket TypeLGA1155
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
HDD2TB
HDD InterfaceSATA
Storage Spec2.5" 128 GB Solid State + 3.5" 2TB Hard Drive
Optical Drive TypeDVD-R/RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
BluetoothYes
Front USB4
Front Audio Ports1x Headphone, 1x Microphone, 1x Line In
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)24 x 22 x 12
Weight24 lbs
Package ContentsUSB Keyboard/Mouse and Power Cord

Other versions of this model

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Questions about this item

What monitor inputs do I need for the Intel HD Graphics 2000 built into the i5-2400?

The integrated Intel HD Graphics 2000 drives VGA and DisplayPort outputs on the OptiPlex 790 Mini Tower, so your monitor must accept one of those connections.

Will my existing DDR3 240-pin DIMMs work if I keep them alongside the installed 16 GB?

The system uses DDR3 240-pin DIMM slots; any matching DDR3 modules you already own can be added provided total capacity stays within the board limit.

How can I confirm the 128 GB SSD is set as the Windows 10 boot drive after first power-on?

Open Settings > System > Storage and verify the 128 GB drive shows the Windows logo and is labelled as the boot device.

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