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Small black tower desktop with DVD slot and USB WiFi adapter

DELL

DELL OptiPlex 990 SFF Desktop Intel Quad-Core i5 2.9-3.30GHz 4GB DDR3 1TB HDD DVDRW WiFi Windows 10 Pro

SKU CH-61NM-TY3QP

A small-form-factor desktop with an Intel quad-core i5 up to 3.30 GHz, 4 GB DDR3 RAM, 1 TB hard drive, DVD±RW, Wi-Fi and Windows 10 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i5 2nd Gen
  • Memory size4 GB DDR3 Desktop RAM
  • Storage drive1000 GB (1 TB) 3.5 in SATA Hard Drive
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q67
  • Compact SFF case saves desk space
  • Quad-core i5 up to 3.30 GHz handles everyday tasks
  • 4 GB DDR3 memory supports smooth multitasking
  • 1 TB SATA hard drive stores large file collections
  • Windows 10 Pro 64-bit ready for business use

Dell OptiPlex 990 SFF desktop computer

This Dell OptiPlex 990 is a Small Form Factor desktop computer built around an Intel Quad-Core i5 processor running between 2.9GHz and 3.30GHz. It comes with 4GB of DDR3 memory and a 1000GB 3.5-inch SATA hard drive for storage. Windows 10 Pro 64-bit is pre-installed and a USB keyboard and mouse are included.

Suitable for office tasks and home study.

The integrated Intel HD Graphics 2000 and 4GB of RAM handle web browsing, document editing and video playback smoothly. Buyers who want more storage, discrete graphics performance or the ability to run modern 3D titles should look at a different system. The compact SFF case also limits internal expansion options.

DDR3 240-pin memory determines upgrade path

The system uses DDR3 DIMM 240-pin modules and supports up to 16GB total. Matching this exact memory type is essential because other DDR generations will not fit the slots. Check the motherboard layout before purchasing additional RAM.

How it compares

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

Price $184.99
Cheaper than about 91% of the 14,711 comparable items (median $494.99).
Memory size 4 GB DDR3 Desktop RAM
Lower than about 97% 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
Processor
ProcessorIntel Core i5 2nd Gen
CPUIntel Quad-Core i5 (2.9 GHz-3.3 GHz)
CPU socketLGA 1155
ChipsetIntel Q67
Memory
Memory size4 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 drive1000 GB (1 TB) 3.5 in SATA Hard Drive
SSD storageNo
Hard drive1 TB
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
Included monitorNot included
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

Questions about this item

How do I install more DDR3 memory in the 240-pin DIMM slots and what is the common mistake?

Open the SFF case, align the notch on each DDR3 module with the 240-pin slot, and press firmly until the retention clips click; the step people miss is seating both clips fully so the module does not sit slightly loose.

Which parts will need replacement first on this OptiPlex 990 SFF?

The 3.5-inch 1000 GB SATA hard drive has moving parts and typically fails before the solid-state components; the DVD±RW drive mechanism and the USB WiFi adapter are the next most likely items to wear out.

What performance limit appears first during sustained heavy workloads?

The 4 GB DDR3 memory ceiling is reached quickly, forcing the system to swap to the 1000 GB hard drive and causing noticeable slowdown long before the Intel HD Graphics 2000 or the quad-core processor hit their thermal limits.

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