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Black and silver Dell OptiPlex 790 Mini Tower desktop case with DVD-RW drive

DELL

DELL OptiPlex 790 Mini Tower i5-2400 4GB DDR3 256GB SSD 2TB HDD

SKU CH-8MMJ-GEA6K

Mini-tower desktop with Intel quad-core i5-2400, 4 GB DDR3, 256 GB SSD plus 2 TB HDD, DVD-RW 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 4GB DDR3

  • Quad-core i5-2400 handles multitasking with 3.10 GHz base and 3.40 GHz turbo
  • 256 GB SSD boots Windows 10 Pro fast while 2 TB HDD stores large files
  • 4 GB DDR3 RAM included; board accepts up to 16 GB for future upgrades
  • Gigabit Ethernet plus USB Wi-Fi dongle gives wired and wireless network options
  • DVD±RW drive reads and writes optical media; USB keyboard and mouse included

Desktop for home and office use

The Dell OptiPlex 790 Mini Tower arrives new with an Intel 2nd Gen i5-2400 quad-core processor at 3.10 GHz and 4 GB of DDR3 memory. A 256 GB solid-state drive handles the operating system and applications while a 3.5 inch 2 TB hard drive adds bulk storage. Integrated Intel HD Graphics 2000 drives the display outputs and a DVD±RW optical drive is fitted. Gigabit Ethernet and a USB wireless dongle provide network connectivity. Windows 10 Pro 64-bit is pre-installed with a USB keyboard and mouse included.

Thermals and power in daily use

The 265 W power supply feeds the processor, memory, both drives and integrated graphics in the mini tower chassis. Under typical office workloads the quad-core CPU runs within its 64-bit design envelope without requiring auxiliary power connectors. Fan noise stays low during web browsing, document editing and video playback. The dual-drive arrangement means the SSD operates without moving parts while the hard drive spins only when its data is accessed. Power draw scales with the workload but remains bounded by the unit's 265 W rating.

Upgrade path from older desktops

This system replaces aging towers that still rely on mechanical hard drives and dual-core processors. The jump is worth it when faster boot times, snappier application launches and 64-bit multi-threaded performance matter for daily productivity. The 4 GB DDR3 baseline can be expanded to 16 GB using the available 240-pin slots. The 256 GB SSD and 2 TB hard drive combination covers both speed and capacity needs without further changes. Buyers who want more storage than 2 TB or a dedicated graphics card should look elsewhere.

Points forts

  • Quad-core i5-2400 handles multitasking with 3.10 GHz base and 3.40 GHz turbo
  • 256 GB SSD boots Windows 10 Pro fast while 2 TB HDD stores large files
  • 4 GB DDR3 RAM included; board accepts up to 16 GB for future upgrades
  • Gigabit Ethernet plus USB Wi-Fi dongle gives wired and wireless network options
  • DVD±RW drive reads and writes optical media; USB keyboard and mouse included

Caractéristiques

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
Memory4GB 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 Capacity4GB DDR3
Memory SpeedDDR3
Memory Spec1 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

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Questions sur cet article

How do I add the 256 GB SSD and 2 TB hard drive to the Mini Tower?

The 2.5 inch 256 GB SSD and 3.5 inch 2 TB hard drive install into the Mini Tower drive bays using the supplied mounting hardware; connect the data and power cables and secure each drive before closing the side panel.

What memory upgrades does this system support later?

The board accepts DDR3 DIMM modules up to a maximum of 16 GB total across the available slots.

Where does the 265 W power supply hit its limit under sustained load?

The 265 W unit will reach its capacity first when the i5-2400 runs at 3.40 GHz turbo alongside both drives and peripherals drawing full power.

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