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Black mini-tower desktop with silver accents, DVD drive slot and front ports

DELL

DELL OptiPlex 790 Mini Tower i5-2400 16GB DDR3 256GB SSD 2TB HDD

SKU CH-TYC2-GZ3CP

Mini-tower desktop with a quad-core Intel i5-2400, 16 GB DDR3, 256 GB SSD plus 2 TB hard drive, DVD-RW, Gigabit Ethernet, USB Wi-Fi dongle, keyboard and mouse, running 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 i5-2400 handles multi-tasking smoothly
  • 16 GB DDR3 memory supports heavy workloads
  • 256 GB SSD + 2 TB HDD gives speed and capacity
  • Gigabit Ethernet provides fast wired connectivity
  • DVD±RW drive reads and writes optical media

Ready for Home and Student Use

This Dell OptiPlex 790 Mini Tower desktop arrives new with Windows 10 Pro installed and a USB keyboard and mouse included. The Intel 2nd Gen i5-2400 quad-core processor runs at 3.10 GHz and supports 64-bit computing. A 256 GB SSD provides the boot drive while a 2 TB hard drive adds bulk storage for files and applications.

Suits Office Tasks Not Demanding Graphics

The integrated Intel HD Graphics 2000 handles everyday productivity video output but lacks the 3D performance needed for modern gaming or GPU-accelerated creative work. Buyers who need discrete graphics power or more than 16 GB of DDR3 memory should consider a different platform. The 265 W power supply also limits upgrade headroom for high-wattage add-in cards.

Dual-Drive Storage Mix Decides Fit

The combination of a 2.5 inch 256 GB solid-state drive and a 3.5 inch 2 TB hard drive gives fast boot times plus large capacity in one chassis. If your workflow requires an all-flash array or a single drive larger than 2 TB, this configuration will not match that requirement.

Highlights

  • Quad-core i5-2400 handles multi-tasking smoothly
  • 16 GB DDR3 memory supports heavy workloads
  • 256 GB SSD + 2 TB HDD gives speed and capacity
  • Gigabit Ethernet provides fast wired connectivity
  • DVD±RW drive reads and writes optical media

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" 256 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
SSD256GB
HDD2TB
HDD InterfaceSATA
Storage Spec2.5" 256 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

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How is the 16 GB DDR3 memory installed and what step do people get wrong?

The 16 GB DDR3 uses 240-pin DIMM slots; the common error is forcing a module the wrong way because the notch position differs from other DDR generations.

What maintenance or replacement will the 265 W power supply and DVD±RW drive need later?

The 265 W PSU may require capacitor replacement after years of continuous load, and the DVD±RW laser can degrade, needing a drive swap for disc writing.

What limit appears first on the Intel HD Graphics 2000 under sustained use?

The integrated Intel HD Graphics 2000 hits its thermal and memory-bandwidth ceiling quickly during prolonged 3D or video workloads, causing throttling.

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