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Black and silver mini tower desktop with keyboard and mouse

DELL

DELL OptiPlex 990 Mini Tower i7-2600 16 GB DDR3 1TB SSD 3TB HDD Windows 10 Pro desktop PC

SKU CH-QXHB-K6SSR

A desktop computer with a quad-core 3.40 GHz processor, 16 GB DDR3 memory, 1 TB SSD plus 3 TB hard drive, DVD-RW drive, Gigabit Ethernet and Windows 10 Pro, supplied with keyboard and mouse

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • Processor Main Features64 bit Processor
  • Optical Drive16X DVD±RW Drive
  • Quad-core i7-2600 at 3.40 GHz with 3.90 GHz turbo handles heavy multitasking
  • 16 GB DDR3 memory maxed out for smooth multi-application workflows
  • 1 TB SSD plus 3 TB HDD gives fast boot and vast storage
  • Windows 10 Pro 64-bit pre-installed for immediate productivity
  • Gigabit Ethernet and DVD-RW drive provide wired speed and disc access

Dell OptiPlex 990 Mini Tower desktop

This Dell OptiPlex 990 Mini Tower is a desktop computer built around an Intel Core i7-2600 processor with four cores and eight threads. It ships with 16 GB of DDR3 memory, a 1 TB SSD paired with a 3 TB hard drive, and Windows 10 Pro already installed. A DVD-RW drive, keyboard and mouse are included in the box.

265 W power supply and integrated audio

The system draws power from a 265 W supply and uses integrated graphics and audio. Gigabit Ethernet provides wired networking, while a 16X DVD±RW drive handles optical media. No discrete graphics card or separate sound card is fitted, keeping heat and noise at modest levels for typical office tasks.

Quad-core i7-2600 at 3.40 GHz with 3.90 GHz Turbo

The i7-2600 runs at a 3.40 GHz base frequency and can reach 3.90 GHz under Turbo Boost when thermal headroom allows. Sustained multi-threaded workloads will remain at elevated clocks until the 265 W power limit or the Mini Tower's cooling capacity is reached, after which speeds taper to stay within thermal limits.

Points forts

  • Quad-core i7-2600 at 3.40 GHz with 3.90 GHz turbo handles heavy multitasking
  • 16 GB DDR3 memory maxed out for smooth multi-application workflows
  • 1 TB SSD plus 3 TB HDD gives fast boot and vast storage
  • Windows 10 Pro 64-bit pre-installed for immediate productivity
  • Gigabit Ethernet and DVD-RW drive provide wired speed and disc access

Caractéristiques

BrandDELL
SeriesOptiPlex
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
Processor Main Features64 bit Processor
Optical Drive16X DVD±RW Drive
AudioSound card - Integrated
EthernetGigabit Ethernet
Power Supply265W
MonitorMonitor not included
Operating SystemWindows 10 Pro
ChipsetIntel Q67
CPU TypeIntel Core i7 2nd Gen
Installed Qty1
Max Supported Qty1
CPU Name3.40GHz
CPU Socket TypeLGA 1155
CPU Main Features64 bit Processor
GPU/VGA TypeIntel HD Graphics 2000
Graphics InterfaceIntegrated video
Memory Capacity16GB DDR3
Memory Spec4 GB x 4
Memory Slot (Total)4
Memory Slot (Available)0
Memory Slots (Available/Total)0/4
Maximum Memory Supported16 GB
SSD1TB
HDD3TB
HDD InterfaceSATA
Optical Drive TypeDVD-R/RW
Screen SizeNo Screen
Audio ChipsetIntegrated
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
BluetoothYes
Front USB4
PS/22
Video Ports1 VGA, 1 Display Port
Rear USB6
RJ451 port
Rear Audio Ports1x Headphone, 1x Microphone, 1x Line In
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse

Questions sur cet article

How do I install the 240-pin DDR3 memory in the OptiPlex 990 and what step is often missed?

Power off, open the Mini Tower case, align the notch on the DIMM with the slot key, press firmly until both retention clips click, then verify 16 GB appears in BIOS before booting Windows 10 Pro.

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

The 265W power supply is the part most likely to require replacement after several years of continuous operation, while the 1TB SSD and 3TB HDD have no moving parts or spinning platters that wear at the same rate.

What thermal or power limit appears first when the i7-2600 runs at 3.90 GHz Turbo Boost under sustained load?

The 265W power supply and Mini Tower airflow become the limiting factors before the CPU hits its thermal ceiling, causing the processor to drop from 3.90 GHz Turbo Boost back toward 3.40 GHz base frequency.

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