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Compact black and silver ultra-small desktop tower standing upright

DELL

DELL OptiPlex 780 USFF Desktop PC Core 2 Duo E8400 3.0GHz 4GB DDR3 250GB HD

SKU CH-MC39-BV8T0

Ultra-small desktop with Core 2 Duo E8400, 4 GB DDR3, 250 GB hard drive, DVD-RW, Windows 10 Pro, Wi-Fi and Bluetooth

  • TypeStudent / Home Office
  • Form FactorDIMM 240-pin
  • UsageConsumer
  • ColorBlack/Silver
  • ProcessorIntel Core 2 Duo E8400 3.0 GHz dual-core processor
  • Processor Main Features64 bit Dual Core Processor

Operating System Windows 10 Pro

  • Windows 10 Pro
  • Windows 7

Struck-through versions exist but are not stocked here.

  • Ultra-small form factor fits tight workspaces
  • Intel Core 2 Duo E8400 3.0 GHz dual-core handles everyday tasks
  • 4 GB DDR3 memory keeps multiple apps responsive
  • 250 GB hard drive stores documents and media
  • Windows 10 Pro pre-installed for immediate use

Ultra-small desktop for office tasks

The Dell OptiPlex 780 USFF is an ultra-small form factor desktop built around an Intel Core 2 Duo E8400 3.0 GHz dual-core processor with 6 MB L2 cache. It ships with 4 GB DDR3 SDRAM and a 250 GB Serial ATA hard drive. Windows 10 Pro comes pre-installed alongside a 16X DVD±RW drive, integrated Intel GMA 3000 graphics, Gigabit Ethernet, WiFi and Bluetooth adapters.

Steady performance within thermal limits

The Intel Q45 chipset and 1333 MHz front-side bus keep data moving between the dual-core CPU and memory during typical office workloads. Integrated Intel GMA 3000 graphics and ADI 1984A High Definition Audio handle everyday media playback without a discrete card. The compact USFF chassis relies on its internal airflow design to maintain stable temperatures during sustained use.

Verify memory slots and drive bays before buying

This unit uses DIMM 240-pin DDR3 modules; confirm your upgrade sticks match that exact specification. The 250 GB hard drive occupies the single internal 3.5-inch bay, so additional internal storage would require an external eSATA or USB 2.0 enclosure. Buyers needing more than 4 GB RAM or a second internal drive should look elsewhere.

Highlights

  • Ultra-small form factor fits tight workspaces
  • Intel Core 2 Duo E8400 3.0 GHz dual-core handles everyday tasks
  • 4 GB DDR3 memory keeps multiple apps responsive
  • 250 GB hard drive stores documents and media
  • Windows 10 Pro pre-installed for immediate use

Specifications

BrandDELL
SeriesOptiPlex
Model780
TypeStudent / Home Office
Form FactorDIMM 240-pin
UsageConsumer
ColorBlack/Silver
ProcessorIntel Core 2 Duo E8400 3.0 GHz dual-core processor
Processor Main Features64 bit Dual Core Processor
Cache Per Processor6 MB L2 Cache
Memory4 GB DDR3 SDRAM
Storage250 GB HD
Optical Drive16X DVD±RW Drive
GraphicsIntel GMA 3000
AudioSound card - Integrated
EthernetGigabit Ethernet
KeyboardUSB
MouseUSB Mouse
Operating SystemWindows 10 Pro
ChipsetIntel Q45
CPU TypeCore 2 Duo
Installed Qty1
Max Supported Qty1
CPU FSB1333 MHz
CPU NameIntel Core 2 Duo E8400
L2 Cache Per CPU6 MB
CPU Socket TypeLGA 775
CPU Main Features64 bit Dual Core Processor
GPU/VGA TypeIntel GMA 3000
Graphics InterfaceIntegrated video
Memory Capacity4GB DDR3
Memory Spec2 GB x 2
Memory Slot (Total)2
Memory Slot (Available)0
Memory Slots (Available/Total)0/2
Maximum Memory Supported16 GB
SSDNo
HDD250GB
Optical Drive TypeDVD±RW
Screen SizeNo Screen
TouchscreenNo
LAN ChipsetIntegrated
LAN Speed10/100/1000Mbps
WLAN802.11b/g/n Wireless LAN
BluetoothYes
Front USB2
Front Audio Ports2
Rear USB5
Rear Audio Ports2 ports
Keyboard TypeUSB Keyboard
Mouse TypeUSB Mouse

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How loud and hot does the Ultra Small Form Factor chassis get when the Core 2 Duo E8400 runs all day?

The USFF case uses a single blower fan over the dual-core processor; expect a noticeable but low-pitched airflow hum and warm exhaust after hours of continuous operation.

Which display cable do I need to connect a monitor to the Intel GMA 3000 graphics?

The rear panel provides a VGA port and a DisplayPort connector; choose the cable that matches your monitor input.

Will my existing DDR3 DIMMs work alongside the installed 4 GB if I want more memory?

The board has two 240-pin DDR3 slots; the installed 4 GB occupies one slot, so you can add a matching DDR3 module in the second slot.

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