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Black and silver Dell OptiPlex 790 mini tower desktop with keyboard and mouse

DELL

DELL OptiPlex 790 Mini Tower i7-2600 3.40GHz 4GB DDR3 500GB HDD DVDRW WiFi Win 10 Pro

SKU CH-CPB2-EAS3Z

A mini-tower desktop with a quad-core 3.40 GHz processor, 4 GB DDR3 RAM, 500 GB SATA hard drive, DVD±RW drive, USB Wi-Fi adapter and Windows 10 Pro 64-bit pre-installed

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel Quad-Core i7-2600 3.40GHz
  • Processor Main Features64 bit Quad-Core Processor

Memory Capacity 4GB DDR3

  • Quad-core i7-2600 at 3.40 GHz powers everyday multitasking
  • 4 GB DDR3 memory handles office apps and web browsing
  • 500 GB 3.5" SATA drive stores documents and media
  • DVD±RW drive reads and writes optical discs
  • Windows 10 Pro 64-bit pre-installed for immediate use

DELL OptiPlex 790 Mini Tower Desktop

This DELL OptiPlex 790 Mini Tower desktop computer is built for everyday office tasks and home study. An Intel i7-2600 quad-core processor running at 3.40 GHz with 3.90 GHz Turbo Boost handles standard applications and light multitasking. The system arrives with Windows 10 Pro 64-bit installed and includes a USB keyboard and mouse for immediate use.

Thermals Noise and Power in Normal Use

The Mini Tower chassis uses integrated graphics and a single 500 GB 3.5 inch SATA hard drive, keeping heat output modest during typical document work and web browsing. A DVD±RW drive adds minimal load. Fan noise stays low under these workloads, and the 4 GB DDR3 memory configuration draws little additional power.

Upgrade Path and When It Makes Sense

This unit replaces older Core 2 Duo or first-generation Core i systems where 64-bit support and four threads are now required. The jump is worth it when legacy software needs Windows 10 Pro compatibility and the 240-pin DDR3 slots allow an affordable move to 8 GB or 16 GB. Buyers needing solid-state speed, modern connectivity or discrete graphics should look elsewhere.

Highlights

  • Quad-core i7-2600 at 3.40 GHz powers everyday multitasking
  • 4 GB DDR3 memory handles office apps and web browsing
  • 500 GB 3.5" SATA drive stores documents and media
  • DVD±RW drive reads and writes optical discs
  • Windows 10 Pro 64-bit pre-installed for immediate use

Specifications

BrandDELL
SeriesOptiPlex
Model790
Part Number790/990 Series
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
ProcessorIntel Quad-Core i7-2600 3.40GHz
Processor Main Features64 bit Quad-Core Processor
Memory4 GB DDR3 Desktop RAM
Storage500 GB 3.5" SATA Hard Drive
Optical DriveDVD±RW Drive
AudioSound card - Integrated
EthernetGigabit Ethernet
Wireless CardWiFi USB Adapter
MonitorMonitor not included
CaseMini Tower
KeyboardUSB
MouseUSB
Operating SystemWindows 10 Pro
Software IncludedWindows 10 Pro Installed
ChipsetIntel Q67
CPU TypeIntel Core i7 2nd Gen
Installed Qty1
Max Supported Qty1
CPU NameIntel Core i7-2600
CPU Main Features64 bit Quad-Core 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
SSDNo
HDD500GB
HDD InterfaceSATA
Optical Drive TypeDVD±RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11 Wireless LAN
Front USB4
Front Audio Ports2
Video Ports1 VGA, 1 Display Port
Rear USB6
Rear IEEE 13941 port
RJ451x Headphone, 1x Microphone, 1x Line In
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse
Dimensions (H x W x D)11.4 x 3.7 x 12.3
Weight12 Lbs.

Other versions of this model

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Questions about this item

How do I install extra DDR3 memory in the OptiPlex 790 Mini Tower and which step is often missed?

Open the case, insert 240-pin DDR3 DIMMs into the motherboard slots, then enter the BIOS to confirm the new total is recognised — skipping that check is the common error.

Which parts of this OptiPlex 790 will need replacement first during its service life?

The 3.5-inch 500 GB SATA hard drive and the DVD±RW optical drive are the mechanical components most likely to require replacement after extended use.

What performance limit appears first when the i7-2600 runs at sustained load in this Mini Tower?

The 4 GB DDR3 memory capacity fills quickly under heavy multitasking, forcing the system to swap to the 500 GB hard drive and slowing overall response.

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