Specifications. Dell Inspiron 1720, Inspiron 1721, Inspiron 1721 - 17" Notebook PC. AMD Turion 64 X2 Dual-Core TL-60, Inspiron PP22X, Inspiron GU051

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Specifications. Dell Inspiron 1720, Inspiron 1721, Inspiron 1721 - 17



Offerings may vary by region. For more information regarding the select the option to view information about your computer.


Processor type

L1 cache

L2 cache

External bus frequency

System Information

System chipset

Data bus width

DRAM bus width

Processor address bus width


Graphics bus

PCI bus

(PCI-Express used for video controllers)



Core™ 2 Duo

32 KB per instruction, 32 KB data cache per core

2 MB or 4 MB per core depending on model

667 MHz and 800 MHz

Mobile Intel Express (GM 965 or PM 965)

64 bits dual-channel (2) 64-bit buses

32 bits

1 MB


32 bits x16



The ExpressCard slot is designed only for ExpressCards. It does NOT support

PC Cards.


PCMCIA may not be available in some regions.

ExpressCard controller

ExpressCard connector

Intel ICH8M one ExpressCard slot (54 mm)




ExpressCard (continued)

Cards supported

ExpressCard connector size


ExpressCard/34 (34 mm)

ExpressCard/54 (54 mm)

1.5 V and 3.3 V

26 pins

8-in-1 Memory Card Reader

8-in-1 memory card controller

8-in-1 memory card connector

Cards supported

Ricoh R5C833

8-in-1 combo card connector

• Secure Digital (SD)

• Secure Digital Input/Output(SDIO)

• MultiMediaCard (MMC)

• Memory Stick

• Memory Stick PRO

• xD-Picture Card

• Hi Speed-SD

• Hi Density-SD


Memory module connector

Memory module capacities

Memory type

Minimum memory two user-accessible SODIMM connectors

512 MB, 1 GB, 2 GB


1 GB

Maximum memory 4 GB


In order to take advantage of the dual channel bandwidth capability, both memory slots must be populated and must match in size.


The available memory displayed does not reflect the complete maximum memory installed because some memory is reserved for system files.

Ports and Connectors


IEEE 1394 microphone connector, stereo headphone/speakers connector

4-pin serial connector

Ports and Connectors (continued)

Consumer IR

Mini Card


Network adapter

S-video TV-out sensor compatible with Philips RC6 (receive only) three Type IIIA Mini Card slots

RJ-11 port

RJ-45 port

7-pin mini-DIN connector (optional S-video to composite video adapter cable) five 4-pin USB 2.0-compliant connector

15-hole connector








Network adapter

Wireless v.92 56K MDC softmodem

Intel High-Definition Audio

10/100 Ethernet LAN on system board internal WLAN, WWAN, WPAN Mini


WWAN ExpressCard



wireless technology



Optional video controller upgrades are available for your computer subject to availability at the time of purchase. To determine the configuration of your computer,

see "Determining Your Computer’s Configuration" on page 21.

Video type:

Video controller

Video memory

LCD interface

TV support integrated on system board

Intel 965 GM up to 358 MB of shared memory

Low Voltage Differential Signaling (LVDS)

NTSC or PAL in S-video, composite, and component modes



Video (continued)

Video type:

Data bus

Video controller

Video memory

LCD interface

TV support


Audio type

Audio controller

Stereo conversion





Internal speaker amplifier

Volume controls


Type (active-matrix TFT) discrete video card

PCI Express X16 nVIDIA GeForce 8400M G or nVIDIA

GeForce 8600M GT

128 MB (GeForce 8400M G) or 256 MB

(GeForce 8600M GT)


NTSC or PAL in S-video, composite, and component modes two-channel high-definition stereo

Intel HDA Azalia

24-bit (analog-to-digital and digital-toanalog)

Intel High Definition Audio microphone-in connector, stereo headphones/speakers connector two 4-ohm speakers

2 Watts per channel into 4 ohms program menus, media control buttons

17-inch WXGA+

17-inch WXGA+ with TrueLife

17-inch WUXGA with TrueLife



Display (continued)





Maximum resolutions:


WXGA+ with TrueLife

WUXGA with TrueLife

Refresh rate

Operating angle

Viewing angles:



Pixel pitch:





Number of keys


Touch Pad

X/Y position resolution

(graphics table mode)

229.5 mm (9.04 in)

367.2 mm (14.46 in)

433.0 mm (17.0 in)

1440 x 900 at 262 K colors

1440 x 900 at 262 K colors

1920 x 1200 at 262 K colors

60± Hz


° (closed) to 155°

±40° (WXGA+) typical

±65° (WUXGA)

+15°/–30° (WXGA+)

+45°/-55° (WUXGA)

0.255 mm

0.191 mm brightness can be controlled through

keyboard shortcuts (see "Adjusting

Brightness" on page 45)

86/103 (U.S. and Canada); 87/104 (Europe);

90/107 (Japan)


240 cpi



Touch Pad (continued)












Charge time (approximate)


Computer off

Operating time

Life span (approximate)

Temperature range:



Coin-cell battery

71.7-mm (2.8-in) sensor-active area

34.0-mm (1.3-in) rectangle

9-cell "smart" lithium ion

6-cell "smart" lithium ion

67.6 mm (2.66 inches) (9 cell)

47.5 mm (1.87 inches) (6 cell)

20.4 mm (0.8 inch)

209.9 mm (8.26 inches)

0.48 kg (1.06 lb) (9 cell)

0.33 kg (0.7 lb) (6 cell)

11.1 VDC

4 hours

Battery operating time varies depending on operating conditions and can be significantly reduced under certain power-intensive

conditions (see "Power Problems" on page 122).

See "Using a Battery" on page 47 for more

information on battery life.

300 discharge/charge cycles

to 35°C (32° to 95°F)


to 65°C (–40° to 149°F)




AC Adapter

Input voltage

Input current (maximum)

Input frequency

Output current

Output power

Rated output voltage





Weight (with cables)

Temperature range:







Weight (with 6-cell battery):

Configurable to less than

100–240 VAC

1.5 A

50–60 Hz

5.62 A (maximum at 4-second pulse)

4.62 A (90 W) (continuous)

90 W

19.5 +/– 1.0 VDC

34.2 mm (1.34 in)

60.87 mm (2.39 in)

153.45 mm (6.0 in)

0.46 kg (1.01 lb)

0° to 35°C (32° to 95°F)

–40° to 65°C (–40° to 149°F)

44 mm (1.7 in)

394 mm (15.5 in)

293 mm (11.3 in)

3.6 kg (8.0 lb)




Temperature range:



Relative humidity (maximum):

to 35°C (32° to 95°F)


to 65°C (–40° to 149°F)



Maximum vibration (using a random vibration spectrum that simulates user environment):

10% to 90% (noncondensing)

5% to 95% (noncondensing)

0.66 GRMS

1.3 GRMS



Maximum shock (Measured with hard drive in operating status and a

2-ms half-sine pulse for operating.

Also measured with hard drive in head-parked position and a 2-ms halfsine pluse for storage):



Altitude (maximum):



142 G

163 G

–15.2 to 3048 m (–50 to 10,000 ft)

–15.2 to 10,668 m (–50 to 35,000 ft)




Using the System Setup Program


Your operating system may automatically configure most of the options available in system setup, thus overriding options that you set through system setup.

An exception is the External Hot Key option, which you can disable or enable only through system setup. For more information on configuring features for your operating system, see Windows Help and Support (click Start , and then click

Help and Support).

You can use system setup as follows:

• To set or change user-selectable features such as your computer password

• To verify information about the computer's current configuration such as the amount of system memory

After you set up the computer, run system setup to familiarize yourself with your system configuration information and optional settings. You may want to write down the information for future reference.

The system setup screens display the current setup information and settings for your computer, such as:

• System configuration

• Boot order

• Boot (start-up) configuration

• Basic device configuration settings

• System security and hard drive password settings


Unless you are an expert computer user or are directed to do so by Dell technical support, do not change the system setup settings. Certain changes might make your computer work incorrectly.




Viewing the System Setup Screen

1 Turn on (or restart) your computer.

2 When the DELL logo appears, press <F2> immediately.

If you wait too long and the Microsoft Windows logo appears, continue to wait until you see the Windows desktop, then shut down your computer and try again.

System Setup Screen


For information about a specific item on a system setup screen, highlight the item and see the Help area on the screen.

On each screen, the system setup options are listed at the left. To the right of each option is the setting or value for that option. You can change settings that appear as white type on the screen. Options or values that you cannot change (because they are determined by the computer) appear less bright.

The upper-right corner of the screen displays help information for the currently highlighted option; the lower-right corner displays information about the computer. System setup key functions are listed across the bottom of the screen.

Commonly Used Options

Certain options require that you reboot the computer for new settings to take effect.

Changing the Boot Sequence

The boot sequence, or boot order, tells the computer where to look to find the software needed to start the operating system. You can control the boot sequence and enable/disable devices using the Boot Order page of the system setup program.


To change the boot sequence on a one-time-only basis, see "Performing a

One-Time Boot" on page 189.

The Boot Order page displays a general list of the bootable devices that may be installed in your computer, including but not limited to the following:

• Diskette Drive

• Internal HDD


• USB Storage Device

• CD/DVD/CD-RW drive

• Modular bay HDD


Only devices that are preceded by a number are bootable.

During the boot routine, the computer starts at the top of the list and scans each enabled device for the operating system start-up files. When the computer finds the files, it stops searching and starts the operating system.

To control the boot devices, select (highlight) a device by pressing the downarrow or up-arrow key, and then enable or disable the device or change its order in the list.

• To enable or disable a device, highlight the item and press the space bar.

Enabled items are preceded by a number; disabled items are not preceded by a number.

• To reorder a device in the list, highlight the device and press <u> to move the device up the list or <d> to move a device down the list.

Boot sequence changes take effect as soon as you save the changes and exit the system setup program.

Performing a One-Time Boot

You can set a one-time-only boot sequence without entering the system setup program (you can also use this procedure to boot the Dell Diagnostics on the diagnostics utility partition on your hard drive).

1 Shut down the computer through the Start menu.

2 Connect the computer to an electrical outlet.

3 Turn on the computer. When the DELL logo appears, press <F12> immediately.

If you wait too long and the Windows logo appears, continue to wait until you see the Windows desktop, then shut down your computer and try again.

4 When the boot device list appears, highlight the device from which you want to boot and press <Enter>.

The computer boots to the selected device.

The next time you reboot the computer, the previous boot order is restored.



Cleaning Your Computer


Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.

Computer, Keyboard, and Display


Before you clean your computer, disconnect the computer from the electrical outlet and remove any installed batteries. Clean your computer with a soft cloth dampened with water. Do not use liquid or aerosol cleaners, which may contain flammable substances.

• Use a can of compressed air to remove dust from between the keys on the keyboard and to remove any dirt or lint from the display.


To help prevent damage to the computer or display, do not spray cleaning solution directly onto the display. Only use products specifically designed for cleaning displays, and follow the instructions that are included with the product.

• Moisten a soft, lint-free cloth with either water or a display cleaner. Do not use alcohol or an ammonia-based cleaner. Wipe the display gently working from the center to the edges until it is clean and any fingerprints are removed. Do not use excessive pressure.


To prevent damage to the antiglare coating, do not wipe the display with soap or alcohol.

• Moisten a soft, lint-free cloth with water and wipe the computer and keyboard. Do not allow water from the cloth to seep between the touch pad and the surrounding palm rest.

• To clean your monitor screen, lightly dampen a soft, clean cloth with water.

You can also use a special screen-cleaning tissue or solution suitable for the monitor’s antistatic coating.

• Wipe the keyboard, computer, and monitor plastics with a soft cleaning cloth moistened with a solution of three parts water and one part dishwashing detergent.

Do not soak the cloth or let water drip inside your computer or keyboard.



Touch Pad

1 Shut down and turn off your computer (see "Turning Off Your Computer" on page 137).

2 Disconnect any attached devices from the computer and from their electrical outlets.

3 Remove any installed batteries (see "Battery Performance" on page 47).

4 Moisten a soft, lint-free cloth with water, and wipe it gently across the surface of the touch pad. Do not allow water from the cloth to seep between the touch pad and the surrounding palm rest.



Disconnect the mouse from the computer before cleaning the mouse

If your screen cursor skips or moves abnormally, clean the mouse.

Cleaning a Non-Optical Mouse

1 Clean the outside casing of the mouse with a cloth moistened with a mild cleaning solution.

2 Turn the retainer ring on the underside of your mouse counterclockwise, and then remove the ball.

3 Wipe the ball with a clean, lint-free cloth.

4 Blow carefully into the ball cage or use a can of compressed air to dislodge dust and lint.

5 If the rollers inside the ball cage are dirty, clean the rollers with a cotton swab moistened lightly with isopropyl alcohol.

6 Recenter the rollers in their channels if they are misaligned. Ensure that fluff from the swab is not left on the rollers.

7 Replace the ball and retainer ring, and turn the retainer ring clockwise until it clicks into place.

Cleaning an Optical Mouse

Clean the outside casing of the mouse with a cloth moistened with a mild cleaning solution.






Always use compressed air to clean the lens in the optical drive, and follow the instructions that come with the compressed air product. Never touch the lens in the drive.

If you notice problems, such as skipping, with the playback quality of your media, try cleaning the discs.

1 Hold the disc by its outer edge. You can also touch the inside edge of the center hole.


To help prevent damage to the surface, do not wipe in a circular motion around the disc.

2 With a soft, lint-free cloth, gently wipe the bottom of the disc (the unlabeled side) in a straight line from the center to the outer edge of the disc.

For stubborn dirt, try using water or a diluted solution of water and mild soap. You can also purchase commercial products that clean discs and provide some protection from dust, fingerprints, and scratches. Cleaning products for CDs are also safe to use on DVDs.

Dell Technical Support Policy (U.S. Only)

Technician assisted technical support requires the cooperation and participation of the customer in the troubleshooting process and provides for restoration of the operating system, software programs, and hardware drivers to the original default configuration as shipped from Dell, as well as the verification of appropriate functionality of the computer and all Dell-installed hardware. In addition to this technician assisted technical support, online technical support is available at support.dell.com. Additional technical support options may be available for purchase.

Dell provides limited technical support for the computer and any "Dellinstalled" software and peripherals


. Support for third-party software and peripherals is provided by the original manufacturer, including those purchased and/or installed through Dell Software and Peripherals, Readyware, and Custom Factory Integration




Repair services are provided pursuant to the terms and conditions of your limited warranty and any optional support service contract purchased with the computer.


All Dell-standard components included in a Custom Factory Integration (CFI) project are covered by the standard Dell limited warranty for your computer. However, Dell also extends a parts replacement program to cover all nonstandard, third-party hardware components integrated through CFI for the duration of the computer’s service contract.


Definition of "Dell-Installed" Software and Peripherals

Dell-installed software includes the operating system and some of the software programs that are installed on the computer during the manufacturing process (Microsoft Office, Norton Antivirus, etc).

Dell-installed peripherals include any internal expansion cards, or Dell-branded module bay or ExpressCard accessories. In addition, any Dell-branded monitors, keyboards, mice, speakers, microphones for telephonic modems, docking stations/port replicators, networking products, and all associated cabling are included.

Definition of "Third-Party" Software and Peripherals

Third-party software and peripherals include any peripheral, accessory, or software program sold by Dell not under the Dell brand (printers, scanners, cameras, games, etc). Support for all third-party software and peripherals is provided by the original manufacturer of the product.

FCC Notice (U.S. Only)

FCC Class B

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual, may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

• This device may not cause harmful interference.

• This device must accept any interference received, including interference that may cause undesired operation.


The FCC regulations provide that changes or modifications not expressly approved by Dell Inc. could void your authority to operate this equipment.



These limits are designed to provide reasonable protection against harmful interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference with radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:

• Reorient the receiving antenna.

• Relocate the system with respect to the receiver.

• Move the system away from the receiver.

• Plug the system into a different outlet so that the system and the receiver are on different branch circuits.

If necessary, consult a representative of Dell Inc. or an experienced radio/television technician for additional suggestions.

The following information is provided on the device or devices covered in this document in compliance with the FCC regulations:

Product name:

Model number:

Company name:

Dell™ Inspiron™ 1720


Dell Inc.

Worldwide Regulatory Compliance & Environmental


One Dell Way

Round Rock, TX 78682 USA


Macrovision Product Notice

This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copyright protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise authorized by

Macrovision. Reverse engineering or disassembly is prohibited.




Key Features

  • Intel® Core™2 Duo T8100 2.1 GHz
  • 43.2 cm (17") 1440 x 900 pixels 16:10
  • 3 GB DDR2-SDRAM 667 MHz
  • 320 GB DVD±RW
  • NVIDIA GeForce Go 8600M GT
  • Bluetooth 2.0+EDR
  • 90 W
  • Windows Vista Home Premium

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