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Black and silver Dell OptiPlex 790 desktop tower with DVD drive

DELL

DELL OptiPlex 790 desktop PC i5-2400 12GB DDR3 500GB HDD Windows 10 Home

SKU CH-63SN-GPJFT

Business desktop with Intel Core i5-2400 processor, 12GB DDR3 memory, 500GB hard drive and Windows 10 Home pre-installed

  • TypeBusiness Desktops & Workstations
  • Form FactorDesktop
  • ColorBlack/Silver
  • ProcessorIntel Core i5-2400 @ 3.40 GHz (2nd generation)
  • Processor Main Features64 bit Quad-Core Processor
  • Memory12 GB DDR3
  • Ready for office tasks with Intel Core i5-2400 quad-core processor up to 3.40 GHz
  • Smooth multitasking supported by 12 GB DDR3 memory
  • 500 GB HDD stores documents and media locally
  • Windows 10 Home 64-bit installed and ready to use
  • Includes new USB keyboard and mouse for immediate setup

Business desktop for office tasks

The Dell OptiPlex 790 is a desktop computer built around an Intel Core i5-2400 quad-core processor running at up to 3.40 GHz. It ships with 12 GB of DDR3 memory and a 500 GB hard drive, providing a functional platform for everyday business applications. The system arrives with Windows 10 Home 64-bit pre-installed and includes a new USB keyboard and mouse so it is ready to deploy immediately.

Thermals and power in daily use

The integrated Intel HD Graphics 2000 and 2nd generation Core i5 architecture keep heat output modest during typical office workloads such as document editing and web browsing. A standard desktop chassis and power supply handle the thermal load without demanding exotic cooling, so fan noise remains low in a quiet workspace. Power draw stays within the limits of the original chassis design for routine productivity tasks.

Included accessories and software impact

A 16X DVD±RW drive adds the ability to read and write optical media for legacy installations or data archiving. Gigabit Ethernet provides a wired network connection for stable access to local resources and internet services. The bundled USB keyboard and mouse eliminate the need for separate peripheral purchases, while the pre-loaded Windows 10 Home 64-bit operating system removes the initial setup burden for IT staff or home users.

Highlights

  • Ready for office tasks with Intel Core i5-2400 quad-core processor up to 3.40 GHz
  • Smooth multitasking supported by 12 GB DDR3 memory
  • 500 GB HDD stores documents and media locally
  • Windows 10 Home 64-bit installed and ready to use
  • Includes new USB keyboard and mouse for immediate setup

Specifications

BrandDELL
SeriesOptiPlex
ModelOptiPlex 790
TypeBusiness Desktops & Workstations
Form FactorDesktop
ColorBlack/Silver
ProcessorIntel Core i5-2400 @ 3.40 GHz (2nd generation)
Processor Main Features64 bit Quad-Core Processor
Memory12 GB DDR3
Storage500GB HDD
Optical Drive16X DVD±RW Drive
GraphicsIntel HD Graphics 2000
AudioSound card - Integrated
EthernetGigabit Ethernet
MonitorMonitor not included
KeyboardNew USB Keyboard
MouseNew USB Mouse
Operating SystemWindows 10 Home 🙋‍♀️Microsoft Windows 11 Pro Upgrade
‍👉Check ABS/Helix computers with Windows 11
CPU TypeIntel Core i5 2nd Gen
Max Supported Qty16GB
CPU NameIntel Core i5-2400
CPU Socket TypeLGA 1155
CPU Main Features64 bit Quad-Core Processor
GPU/VGA TypeIntel HD Graphics 2000
Graphics InterfaceIntegrated video
Memory Capacity12GB DDR3
Memory Slot (Total)0
Maximum Memory Supported16GB
SSDNo
HDD500GB
Optical Drive TypeDVD±RW
Screen SizeNo Screen
TouchscreenNo
Display FeatureNo Screen
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Dimensions (H x W x D)4.02" x 14.17" x 16.14"
Weight16.67lb
Package ContentsNew Power Cord

Questions about this item

How do I install more memory in the OptiPlex 790, and what is the common mistake?

Open the chassis, align the notch on the DDR3 module with the slot key, and press firmly until the clips click; the step people miss is seating both ends evenly so the module does not sit crooked.

Which component in this desktop will most likely need replacement first?

The 500GB HDD has moving parts and will typically wear out before the solid-state components, so plan to swap it for a new drive after several years of daily use.

What thermal limit appears first when the i5-2400 runs at 3.40 GHz under sustained load?

The Intel HD Graphics 2000 and CPU share the same heatsink; under prolonged heavy work the shared thermal solution reaches its capacity first, causing the processor to throttle its speed.

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