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Black and silver small form factor desktop tower with DVD drive slot

DELL

Dell OptiPlex 990 SFF i7-2600 3.40GHz 8GB DDR3 256GB SSD desktop PC

SKU CH-1XVY-MME5Z

Compact small-form-factor desktop with a quad-core Intel i7-2600, 8 GB DDR3 memory, 256 GB SSD, DVD±RW drive, Wi-Fi adapter and Windows 10 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i7 2nd Gen
  • Memory size8 GB DDR3 Desktop RAM
  • Storage drive256 GB 2.5 in Solid State Hard Drive ( SSD)
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q67

Memory Capacity 4GB DDR3

  • Quad-core i7-2600 at 3.40 GHz powers everyday multitasking
  • 8 GB DDR3 memory supports smooth application switching
  • 256 GB SSD provides fast boot and load times
  • Small form factor fits tight desk spaces
  • Windows 10 Pro 64-bit pre-installed for immediate use

Compact desktop for everyday work

The Dell OptiPlex 990 SFF is a small form factor PC built around an Intel Core i7-2600 quad-core processor running at 3.40 GHz with a 3.80 GHz turbo boost. It ships with 8 GB of DDR3 memory and a 256 GB 2.5-inch SSD for the operating system and files. Windows 10 Pro 64-bit comes pre-installed, and a USB keyboard plus mouse are included in the box.

Thermals and power in daily use

The SFF chassis relies on Intel HD Graphics 2000 integrated graphics, which keeps heat output modest during typical office tasks. A single internal fan cools the 64-bit CPU and power supply without producing intrusive noise at idle or light load. Power draw stays low because there is no discrete graphics card or additional spinning drives beyond the SSD and DVD±RW.

DDR3 memory limit defines upgrade scope

The motherboard uses 240-pin DIMM slots that accept DDR3 modules only, with a maximum supported capacity of 16 GB. Buyers who want more storage must add a second 2.5-inch drive or use external USB storage, as there is no M.2 slot or 3.5-inch bay. The integrated graphics cannot be upgraded, so this system is not suited for modern gaming or GPU-accelerated workloads.

How it compares

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

Price $223.99
Cheaper than about 85% 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 4 GB DDR3
Lower than about 95% of the 13,125 comparable items (median 16 GB).

Specifications

Product
Brand nameDELL
Product lineOptiPlex
Model name990
Part number990
Product typeStudent / Home Office
Recommended useConsumer
Product colorBlack/Silver
Processor
ProcessorIntel Core i7 2nd Gen
CPUIntel Quad-Core i7-2600 3.4 GHz
CPU modelIntel Core i7-2600
CPU socketLGA 1155
ChipsetIntel Q67
Memory
Memory size8 GB DDR3 Desktop RAM
RAM capacity4 GB DDR3
RAM type and speedDDR3
Memory configuration1 GB x 4
Total memory slots4
Free memory slots0
Memory slots0/4
Max supported RAM16 GB
Storage
Storage drive256 GB 2.5 in Solid State Hard Drive ( SSD)
SSD storage256 GB
Hard driveNo
Disc driveDVD±RW Drive
Drive interfaceSATA
Optical driveDVD±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 adapterWiFi USB Adapter
Ethernet controllerIntegrated
Wi-Fi802.11 Wireless LAN
Ports & slots
Front USB ports4
Front audio jacks2
Video connectors1 VGA, 1 Display Port
Rear USB ports6
Ethernet port1x Headphone, 1x Microphone, 1x Line In
Size & build
Form factorDIMM 240-pin
ChassisSmall Form Facto (SFF)
Overall dimensions11.4 × 3.7 × 12.3
Product weight12 lb (5.44 kg)
In the box
Bundled mouseUSB
Pointing deviceUSB Mouse
Software
Operating systemWindows 10 Pro
Pre-installed softwareWindows 10 Pro Installed
More details
KeyboardUSB
Rear IEEE 13941 port
Keyboard typeUSB Keyboard

Other versions of this model

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Questions about this item

How do I install the 8 GB DDR3 DIMM in the OptiPlex 990 SFF, and what step is often missed?

Open the SFF chassis, align the 240-pin DDR3 module with the motherboard slot, press firmly until the retention clips click, then replace the cover; the step often missed is seating the module fully so both clips engage automatically.

What maintenance or replacement will the OptiPlex 990 SFF need later?

The CMOS coin-cell battery on the motherboard will eventually need replacement to keep BIOS settings and system time, and the DVD±RW drive mechanism may require cleaning or replacement if disc reading fails.

What limit appears first when the i7-2600 runs sustained loads in this SFF case?

The compact SFF airflow path causes CPU temperatures to reach the processor's thermal throttle point under sustained loads, reducing clock speeds below the 3.80 GHz turbo frequency to protect the chip.

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