Dell OptiPlex 780 Setup and Features Information

About Warnings

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WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

Dell™ OptiPlex™ 780 Ultra Small Form Factor
Setup and Features Information Tech Sheet

Front View

1 CD/DVD drive 2 power button

3 drive activity light 4 diagnostic lights (4)

5 network activity light 6 WiFi activity light (optional)

7 headphone connector 8 microphone connector

9 USB connectors (2)

November 2009

Model: D01U
Type: D01U001

Back View

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1 network activity light 2 captive thumbscrew

3 padlock ring 4 security cable slot

5 power connector 6 line-out connector

7 line-in/microphone connector 8 eSATA connector

9 DisplayPort connector 10 VGA connector

11 serial connector 12 USB connectors (5)

13 network connector 14 link integrity light

15 WiFi antenna (optional)

Quick Setup

WARNING: Before you begin any of the procedures in this section, read the safety

information that shipped with your computer. For additional best practices information,
see www.dell.com/regulatory_compliance.

NOTE: Some devices may not be included if you did not order them.

1

Connect the monitor using only one of the following cables:

a

The blue VGA cable.

c

The VGA cable to a DisplayPort adapter.

2

Connect the USB keyboard or mouse
(optional).

b

The DisplayPort cable.

3

Connect the network cable (optional).

Connect the power cable.

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Press the power buttons on the monitor and computer.

Specifications

NOTE: The following specifications are only those required by law to ship with your computer.

For a complete and current listing of the specifications for your computer, go to support.dell.com.

System Information

Chipset Intel® Q45 Express chipset with ICH10DO

Processor

Processor Intel Core™2 Duo, Intel Pentium® Dual-Core,

Intel Celeron

®

Dual-Core, Intel Celeron

®

Video

Video type:

Integrated

Video memory:

Integrated

Memory

Memory module connector 2 DIMM slots

Memory module capacity 1 GB or 2 GB

Type DDR3 1066 MHz (non-ECC)

Minimum memory 1 GB

Maximum memory 4 GB

Drives

Externally accessible:

5.25-inch slimline drive bay

Internally accessible:

2.5-inch SATA drive bay

Available devices:

2.5-inch SATA hard drive

5.25-inch SATA DVD-ROM,
DVD+/-RW drive

Intel Q45 graphics controller

Upto 1759 MB shared video memory

One

One

One

One

NOTE: Supports a maximum of one hard drive.

Control Lights and Diagnostic Lights

Front of computer:

Power button light

Drive activity light

Network activity light

WiFi activity light (optional)

Diagnostic lights

Back of computer:

Link integrity light on
integrated network adapter

Network activity light on
integrated network adapter

Blue light — Solid blue light indicates power-on state;
blinking blue light indicates sleep state of the computer.

Amber light — Solid amber light when the computer does not
start indicates a problem with the system board or
power supply. Blinking amber light indicates a problem
with the system board.

Displays the SATA hard drive or CD/DVD drive activity.

Blue light — Blinking blue light indicates that the computer is
reading data from or writing data to the drive.

Blue light — A good connection exists between the network
and the computer.

Off (no light) — The computer is not detecting a physical
connection to the network.

Blue light — The WiFi network card is enabled.

Four amber lights located on the front panel of the computer.
For information on the diagnostic lights, see the Service
Manual available on the Dell Support website at
support.dell.com/manuals.

Green light — A good 10 Mbps connection exists between the
network and the computer.

Orange light — A good 100 Mbps connection exists between
the network and the computer.

Yellow light — A good 1000 Mbps connection exists between
the network and the computer.

Off (no light) — The computer is not detecting a physical
connection to the network.

Yellow light — A blinking yellow light indicates that network
activity is present.

Control Lights and Diagnostic Lights (continued)

Inside of computer:

Power supply light

Green — The power supply is turned on and is functional.
The power cable must be connected to the power connector
(at the back of the computer) and the electrical outlet. A test
button and LED are on the top side of the unit.

NOTE: You can test the health of the power system by pressing

the test button. When the system’s power supply voltage is within
specification, the self-test LED lights. If the LED does not light up,
the power supply may be defective. AC power must be connected
during this test.

NOTE: The test button and indication LED are not accessible

from outside the system. They are located under the removable
side cover on top of the power supply.

Power

Wattage 180 W

Maximum heat dissipation 750 BTU/hr

NOTE: Heat dissipation is calculated by using the power supply wattage rating.

Voltage 90–264 VAC

Frequency 47–63 Hz

Input amperage 2.6 A

NOTE: See the safety information that shipped with your computer for important

voltage–setting information.

Coin-cell battery 3V CR2032 lithium coin cell

Physical

Height 23.7 cm (9.3 inches)

Width 6.5 cm (2.6 inches)

Depth 24.0 cm (9.4 inches)

Weight 3.2 kg (7 lbs)

Environmental

Temperature:

Operating

Storage

Relative humidity 20% to 80% (noncondensing)

Altitude:

Operating

Storage

Airborne contaminant level G2 or lower as defined by ISA-S71.04-1985

10° to 35°C (50° to 95°F)

–40° to 65°C (–40° to 149°F)

–15.2 to 3048 m (–50 to 10,000 ft)

–15.2 to 10,668 m (–50 to 35,000 ft)

Finding More Information and Resources

If you need to: See:

Find safety best practices information for your
computer, review Warranty information,
Terms and Conditions (U.S only),
Safety instructions, Regulatory information,
Ergonomics information, and
End User License Agreement.

The safety and regulatory documents that
shipped with your computer and the Regulatory
Compliance Homepage at
www.dell.com/regulatory_compliance.

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Information in this document is subject to change without notice.
© 2009 Dell Inc. All rights reserved.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and OptiPlex are trademarks of Dell Inc.;
Intel, Celeron,andPentium are registered trademarks and Core is a trademark of Intel Corporation in
the U.S. and other countries.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the
marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade
names other than its own.