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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 8GB DDR3 128GB SSD 2TB HDD

SKU CH-7FWR-XV3RT

Mini tower desktop with a quad-core Intel i5-2400, 8 GB DDR3, 128 GB SSD plus 2 TB hard drive, DVD-RW and Windows 10 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i5 2nd Gen
  • Memory size8 GB DDR3 Desktop RAM
  • Storage drive2.5 in 128 GB Solid State + 3.5 in 2 TB Hard Drive
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q67

Memory Capacity 8GB DDR3

  • Quad-core i5-2400 handles multi-tasking smoothly
  • 128 GB SSD boots Windows 10 Pro fast
  • 2 TB hard drive stores large media libraries
  • 8 GB DDR3 memory runs everyday apps
  • DVD-RW drive reads and writes optical discs

Dell OptiPlex 790 Mini Tower

This Dell OptiPlex 790 Mini Tower is a desktop computer built for everyday office and home tasks. It runs on an Intel 2nd Gen i5-2400 quad-core processor at 3.10 GHz with 8 GB of DDR3 RAM. The system includes a 128 GB SSD and a 2 TB hard drive for combined speed and capacity. Windows 10 Pro 64-bit is pre-installed with a keyboard and mouse included.

Dual-drive upgrade from single HDD setups

The 128 GB solid-state drive replaces a traditional hard drive as the boot device, cutting start-up and application load times. The 2 TB mechanical drive adds large-volume storage for files and media. This jump is worth it when moving from a single hard-drive configuration that feels sluggish during multitasking.

Suits general office and study use

Buyers needing a ready-to-run Windows 10 Pro machine for documents, web browsing and light multitasking will find this configuration adequate. It is not for users who require dedicated graphics performance, modern high-speed memory standards, or higher-wattage power headroom for add-in cards.

How it compares

Measured against everything we stock in Tower & Compact Desktop PCs, at today’s prices. Recalculated every night.

Price $219.99
Cheaper than about 86% of the 14,711 comparable items (median $494.99).
Memory size 8 GB DDR3 Desktop RAM
Lower than about 80% of the 5,840 comparable items (median 16 GB).
RAM capacity 8 GB DDR3
Lower than about 80% of the 13,125 comparable items (median 16 GB).

Specifications

Product
Brand nameDELL
Product lineOptiPlex
Model name790
Part number790/990
Product typeStudent / Home Office
Recommended useConsumer
Product colorBlack/Silver
Processor
ProcessorIntel Core i5 2nd Gen
CPUIntel 2nd Gen i5-2400
CPU model3.1 GHz
CPU socketLGA1155
ChipsetIntel Q67
Memory
Memory size8 GB DDR3 Desktop RAM
RAM capacity8 GB DDR3
RAM type and speedDDR3
Memory configuration2 GB x 4
Total memory slots4
Free memory slots0
Memory slots0/4
Max supported RAM16 GB
Storage
Storage drive2.5 in 128 GB Solid State + 3.5 in 2 TB Hard Drive
Hard drive2 TB
Storage configuration2.5 in 128 GB Solid State + 3.5 in 2 TB Hard Drive
Disc driveDVD±RW Drive
Drive interfaceSATA
Optical driveDVD-R/RW
Display
Screen sizeNo Screen
Graphics
GraphicsIntel HD Graphics 2000
GPUIntel HD Graphics 2000
GPU interfaceIntegrated video
Audio & video
SoundSound card - Integrated
Audio chipIntegrated
Connectivity
Network speed10/100/1000 Mbit/s
Wired networkGigabit Ethernet
Wireless adapterUSB Dongle
Ethernet controllerIntegrated
Bluetooth supportYes
Ports & slots
Front USB ports4
Front audio jacks1x Headphone, 1x Microphone, 1x Line In
PS/2 ports2
Video connectors1 VGA, 1 Display Port
Rear USB ports6
Ethernet port1 port
Rear audio jacks1x Headphone, 1x Microphone, 1x Line In
Power
Power supply265 W
Size & build
Form factorDIMM 240-pin
ChassisMini Tower
Overall dimensions24 × 22 × 12
Product weight24 lb (10.9 kg)
In the box
Bundled mouseUSB Mouse
Pointing deviceUSB Mouse
In the boxUSB Keyboard/Mouse and Power Cord
Software
Operating systemWindows 10 Pro
Pre-installed softwareWindows 10 Installed
More details
KeyboardUSB Keyboard
Keyboard typeUSB Keyboard

Other versions of this model

5 more in the same range

Questions about this item

What are the drive bay sizes for the 128 GB SSD and the 2 TB hard drive in this OptiPlex 790 Mini Tower?

The 128 GB solid-state drive uses a 2.5 inch bay and the 2 TB hard drive uses a 3.5 inch bay.

What is the correct memory type and form factor when adding RAM to the four DIMM slots on this system?

Install DDR3 desktop modules in the 240-pin DIMM slots; the board supports up to 16 GB total.

Which component should be checked first if the 265 W power supply becomes noisy or unstable after several years of use?

The internal 265 W power supply unit is the field-replaceable part to inspect or swap if fan noise or voltage issues appear.

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