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Black and silver small-form-factor desktop tower with DVD-RW slot and USB WiFi adapter

DELL

DELL OptiPlex 990 SFF Desktop PC i5 2.9-3.30GHz 8GB DDR3 1TB HDD DVDRW WiFi

SKU CH-H862-07G90

Small form-factor desktop with quad-core Intel i5 at 2.9–3.30 GHz, 8 GB DDR3, 1 TB SATA hard drive, DVD±RW, Wi-Fi USB adapter and Windows 10 Pro

  • Screen sizeNo Screen
  • ProcessorIntel Core i5 2nd Gen
  • Memory size8 GB DDR3 Desktop RAM
  • Storage drive1000 GB (1 TB) 3.5 in SATA Hard Drive
  • GraphicsIntel HD Graphics 2000
  • ChipsetIntel Q67
  • Quad-core Intel i5 handles multi-tasking smoothly
  • 8 GB DDR3 memory supports everyday workloads
  • 1 TB SATA hard drive stores large file collections
  • DVD±RW drive reads and writes optical media
  • Gigabit Ethernet plus Wi-Fi USB adapter connects to networks

Compact business desktop

The Dell OptiPlex 990 SFF is a small-form-factor desktop computer built around an Intel quad-core i5 processor running at 2.9 to 3.30 GHz. It ships with 8 GB of DDR3 memory, a 1000 GB 3.5-inch SATA hard drive and a DVD±RW optical drive. Windows 10 Pro 64-bit is pre-installed and a USB keyboard and mouse are included.

Home office and light administrative work

This system suits buyers who need a ready-to-use PC for web browsing, office applications and video playback in a compact case. Integrated Intel HD Graphics 2000 and the single included WiFi USB adapter handle basic display and wireless needs. Buyers who need discrete graphics performance, faster solid-state storage, more than 8 GB of DDR3 memory, or additional internal drive bays should look elsewhere.

8 GB DDR3 memory limit

The motherboard uses 240-pin DIMM slots for DDR3 modules and the supplier notes a maximum of 16 GB. The installed 8 GB configuration leaves room for one upgrade step within the DDR3 standard. No other memory type is compatible with this platform.

How it compares

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

Price $185.99
Cheaper than about 91% 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 8 GB DDR3
Lower than about 80% 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 i5 2nd Gen
CPUIntel Quad-Core i5 (2.9 GHz-3.3 GHz)
CPU socketLGA 1155
ChipsetIntel Q67
Memory
Memory size8 GB DDR3 Desktop RAM
RAM capacity8 GB DDR3
RAM type and speedDDR3
Memory configuration2 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 additional DDR3 memory in the OptiPlex 990 SFF, and which step is often missed?

Open the small form factor case, align the 240-pin DDR3 module with the slot key, press firmly until the retention clips click shut, then verify the new total in BIOS — the step most people skip is fully seating both clips.

What component in this OptiPlex 990 SFF will most likely need replacement first?

The 3.5-inch 1000 GB SATA hard drive is the part with moving parts and the highest wear rate; plan to replace it with another SATA drive when SMART warnings appear.

What thermal limit appears first when the Intel Quad-Core i5 runs at 3.30 GHz continuously in this SFF chassis?

The small form factor case restricts airflow, so the CPU hits its thermal ceiling and throttles below the 3.40 GHz turbo boost frequency during sustained loads.

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