Dell Inspiron RT722 Specifications

Dell™Inspiron™1521Owner'sManual  Notes, Notices, and Cautions Information in this document is subject to change without notice. ©2007Del

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

  If the display is blank  Check the battery — If you are using a battery to power your computer, the battery charge may be depleted. Connect the

 Run the Video diagnostics tests — If no error message appears and you still have a display problem, but the display is not completely blank, run th

Using Windows Device Driver Rollback If a problem occurs on your computer after you install or update a driver, use Windows Device Driver Rollback to

 5. Click Driver tab, and then click Update Driver.  6. Click Browse and browse to the location to which you previously copied the driver files

OR l Click Start ® All Programs ® Maintenance ® Back Up and Restore Center. Under Tasks, click Create a restore point or change settings. For more

 2. As the computer restarts, press <F8> until the Advanced Boot Options menu appears on the screen.  3. Press <Down Arrow> to selec

6. Press any key to Boot from CD-ROM.  7. Follow the instructions on the screen to complete the installation. Back to Contents Page  NOTE: You

Back to Contents Page  Setting Up and Using Networks Dell™Inspiron™1521Owner'sManual Connecting a Network or Broadband Modem Cable S

Before you can set up a WLAN, you need: l High-speed (broadband) Internet access (such as cable or DSL) l A broadband modem that is connected and w

 8. Insert a network cable into the network (RJ-45) connector on the unpowered broadband modem.  9. Connect the other end of the network cable in

l Wipe the keyboard, computer, and monitor plastics with a soft cleaning cloth moistened with a solution of three parts water and one part dishwashi

function on or off, the wireless activity indicator changes to display the status. For more information about the Dell QuickSet wireless activity ind

 3. Follow the instructions on the screen to manage the network connection with the utility. or  1. Click Start ® All Programs® Dell Wireless.

Technician assisted technical support requires the cooperation and participation of the customer in the troubleshooting process and provides for resto

Macrovision Product Notice This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual proper

Back to Contents Page  Using a Battery Dell™Inspiron™1521Owner'sManual Battery Performance Checking the Battery Charge Conserving

l Press <Fn><F3> The Battery Meter displays the status, battery health, charge level, and charge completion time for the battery in your

or l Click the icon in the notification area, click Power Options, and then select a plan in the Select a power plan window.  Using the Sleep Po

To replace the battery, follow the removal procedure in reverse order. Storing a Battery Remove the battery when you store your computer for an ex

Back to Contents Page  Using the Memory Card Reader Dell™Inspiron™1521Owner'sManual Memory Card Blanks Installing a Memory Card R

Removing a Memory Card or Blank  Press the card into the slot to release it from the card reader. When it is partially ejected, remove the card. B

Back to Contents Page  About Your Computer Dell™Inspiron™1521Owner'sManual Determining Your Computer's Configuration Front View

Back to Contents Page  Using ExpressCards Dell™Inspiron™1521Owner'sManual ExpressCard Blanks Installing an ExpressCard Removing a

The computer recognizes the ExpressCard and automatically loads the appropriate device driver. If the configuration program tells you to load the ma

Back to Contents Page  Getting Help Dell™Inspiron™1521Owner'sManual Obtaining Assistance Problems With Your Order Product Informa

www.dell.ca (Canada only) You can access Dell Support through the following websites and e-mail addresses: l Dell Support websites support.dell.com

 4. Include any accessories that belong with the item(s) being returned (power cables, software floppy disks, guides, and so on) if the return is f

Back to Contents Page  Using the Display Dell™Inspiron™1521Owner'sManual Adjusting Brightness Switching the Video Image From Your Co

Back to Contents Page  Finding Information Dell™Inspiron™1521Owner'sManual NOTE: Somefeaturesmaybeoptionalandmaynotshipwithyo

Back to Contents Page  l Solutions — Troubleshooting hints and tips, articles from technicians, online courses, and frequently asked questions l Co

Back to Contents Page  Glossary Dell™Inspiron™1521Owner'sManual Terms in this Glossary are provided for informational purposes only and

 camera — Built-in camera for video capture, conferencing, and chat. Based on configuration selections you made when ordering your computer, your com

CD-RW — CD rewritable — A rewritable version of a CD. Data can be written to a CD-RW disc, and then erased and written over (rewritten). CD-RW drive —

EIDE — enhanced integrated device electronics — An improved version of the IDE interface for hard drives and CD drives. EMI — electromagnetic interfer

megahertz (MHz), gigahertz (GHz), or terahertz (THz). I IC — integrated circuit — A semiconductor wafer, or chip, on which thousands or millions of t

memory module — A small circuit board containing memory chips, which connects to the system board. MHz — megahertz — A measure of frequency that equal

R RAID — redundant array of independent disks — Amethodofprovidingdataredundancy.SomecommonimplementationsofRAIDincludeRAID0,RAID1,RA

SVGA — super-video graphics array — A video standard for video cards and controllers. Typical SVGA resolutions are 800 x 600 and 1024 x 768. The numbe

W — watt — The measurement of electrical power. One W is 1 ampere of current flowing at 1 volt. WHr — watt-hour — A unit of measure commonly used to i

Back to Contents Page  Using the Keyboard and Touchpad Dell™Inspiron™1521Owner'sManual Numeric Keypad Key Combinations Touch Pad

 Microsoft® Windows® Logo Key Functions  Dell™QuickSetKeyCombinations If Dell QuickSet is installed, you can use other shortcut keys for function

 1. Click Start , and then click Control Panel.  2. Click Hardware and Sound.  3. Click Keyboard.  4. In the Mouse Properties window:

If the computer is running on a battery, the light operates as follows: ¡ Off: The battery is adequately charged (or the computer is turned off). ¡

Back to Contents Page  Using Multimedia Dell™Inspiron™1521Owner'sManual Playing Media PlayingMediaUsingDellTravelRemote Cop

For more information on playing media, click Helponthemediaplayer(ifavailable). PlayingMediaUsingDellTravelRemote The Dell Travel Remote

This section applies only to computers that have a DVD+/-RW drive. The following instructions explain how to make an exact copy of a CD or DVD using R

MB of the blank space to finalize the recording. l Use CD-Rs to burn music CDs that you want to play in regular stereos. CD-RWs do not play in most

For more information on using Dell MediaDirect, use the Help menu in the Dell MediaDirect application. Connecting Your Computer to a TV or Audio Devi

 1. Turn off the computer and the TV and/or audio device that you want to connect.  2. Plug one end of the S-video cable into the S-video outp

 1. Turn off the computer and the TV and/or the audio device that you want to connect.  2. Connect the composite video adapter to the S-video T

 1. Turn off the computer and the TV and/or audio device that you want to connect.  2. Connect the composite video adapter to the S-video TV-ou

 1. Turn off the computer and the TV and/or audio device that you want to connect.  2. Connect the composite video adapter to the S-video TV-ou

 1. Turn off the computer and the TV and/or audio device that you want to connect.  2. Connect the component video adapter to the S-video TV-ou

 security cable slot — Lets you attach a commercially available antitheft device to the computer (see Security Cable Lock).  wireless switch — Whe

 1. Turn off the computer and the TV and/or audio device that you want to connect.  2. Connect the component video adapter to the S-video TV-ou

 5. Click Close.  6. Click OK.  Enabling the Display Settings for a TV  1. Click Start , click Control Panel, and then click Appearance and

Back to Contents Page  Adding and Replacing Parts Dell™Inspiron™1521Owner'sManual Before You Begin This chapter provides procedures fo

 1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.  2. Turn off your computer (see Turning Of

 3. Slide the hard drive out of the computer.  Replacing the Hard Drive  1. Remove the new drive from its packaging. Save the original packag

 Removing the Optical Drive  1. Follow the procedures in Before You Begin.  2. Turn the computer over.  3. Remove the locking screw from the

 Replacing the Hinge Cover  1. Insert the left edge of the hinge cover.  2. Press from left to right until the cover snaps into place. Keyb

 Replacing the Keyboard  1. Slide the keyboard cable into the keyboard connector on the DIMM A memory module cover.  2. Rotate the keyboard co

 4. Lift the memory module cover but do not remove it.  5. Use your fingertips to carefully spread apart the securing clips on each end of the mem

 Removing the DIMM B Memory Module The DIMM B memory module is located under the memory module cover on the bottom of the computer.  1. Follow the p

Right Side View  optical drive — For more information about the optical drive, see Using Multimedia.  eject button — Press the eject button to o

 3. Replace the memory module cover.  4. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical

If you ordered a wireless Mini Card with your computer, the card is already installed. Your computer supports three types of wireless Mini Cards: l W

 Replacing a WLAN Card  1. Insert the WLAN card connector into the system board connector labeled "WLAN" at a 45-degree angle.  2. P

 4. Disconnect the two antenna cables from the WWAN card.  5. Release the WWAN card by pushing the metal securing tabs toward the back of the

 Replacing a WWAN Card  1. Insert the WWAN card connector into the system board connector labeled "WWAN" at a 45-degree angle.  2. Pre

 3. Connect the blue antenna cable to the WPAN card.  4. Secure unused antenna cables in the protective mylar sleeve.  5. Replace the cover

Removing the Coin-Cell Battery  1. Follow the procedures in Before You Begin.  2. Turn the computer over.  3. Loosen the captive screw on the

Back to Contents Page Dell™QuickSetFeatures Dell™Inspiron™1521Owner'sManual Dell QuickSet provides you with easy access to configure

Back to Contents Page  Securing Your Computer Dell™Inspiron™1521Owner'sManual Security Cable Lock Passwords If Your Computer Is L

l If the computer belongs to a company, notify the security office of the company. l Contact Dell customer service to report the missing computer.

 S-video TV-out connector  USB connectors  AC adapter connector — AttachesanACadaptertothecomputer.TheACadapterconvertsACpowertothe

Back to Contents Page  Setting Up Your Computer Dell™Inspiron™1521Owner'sManual Connecting to the Internet Transferring Information

Transferring Information to a New Computer You can transfer the following types of data from one computer to another: l E-mail messages l Toolba

 3. Turn on the printer, and then turn on the computer. If the Add New Hardware Wizard window appears, click Cancel.  4. Click Start , and the

Uninterruptible Power Supplies A UPS protects against power fluctuations and interruptions. UPS devices contain a battery that provides temporary powe

Back to Contents Page  Specifications Dell™Inspiron™1521Owner'sManual Processor SystemInformation ExpressCard Memory Port

Maximum memory 4 GB  NOTE: In order to take advantage of the dual channel bandwidth capability, both memory slots must be populated and must match in

Width 344.5 mm (13.6 in) Diagonal 391.2 mm (15.4 in) Maximum resolutions:  WXGA 1280 x 800 at 262 K colors WXGA with TrueLife 1280 x 800 at 262 K co

Back to Contents Page  Input frequency 47–63 Hz Output current (65 W) 4.34A(maximumat4-second pulse) 3.34A(65W)(continuous) Output current (9

Back to Contents Page Dell™Inspiron™1521Owner'sManual Information in this document is subject to change without notice. ©2007DellInc.A

Back to Contents Page  Traveling With Your Computer Dell™Inspiron™1521Owner'sManual Identifying Your Computer Packing the Computer

 left speaker — To adjust the volume of the integrated speaker, press the volume control buttons or the mute button.  memory module/coin-cell batter

Back to Contents Page 

Back to Contents Page  Troubleshooting Dell™Inspiron™1521Owner'sManual Dell Technical Update Service The Dell Technical Update service

The computer runs the Pre-boot System Assessment (PSA), a series of initial tests of your system board, keyboard, display, memory, hard drive, etc. l

For any problem encountered during a test, a message appears with an error code and a description of the problem. Write down the error code and proble

l Click the Dell Support 3 icon in the notification area of your Windows desktop. or l Click the Microsoft® Windows Vista® Start button ® All P

Fill out the Diagnostics Checklist as you complete these checks.  Ensure that Microsoft®Windows® recognizes the drive — l Click Start and click

3. Gently pull out the tray until it stops.  The drive makes an unfamiliar scraping or grinding sound l Ensure that the sound is not caused by th

Verify that the modem is communicating with Windows —   1. Click the Start , and then click Control Panel.  2. Click Hardware and Sound. 

 Disk C: failed initialization — The hard drive failed initialization. Run the hard drive tests in the Dell Diagnostics (see Dell Diagnostics).  D

 Invalid configuration information-please run System Setup Program — The system configuration information does not match the hardware configuration.

Back to Contents Page  Appendix Dell™Inspiron™1521Owner'sManual Using the System Setup Program Cleaning Your Computer DellTechni

The operating system may be corrupted. Contact Dell (see Contacting Dell).  No timer tick interrupt — A chip on the system board may be malfunctioni

System Setup Program).  Timer chip counter 2 failed — A chip on the system board may be malfunctioning. Run the System Set tests in the Dell Diagnos

 If you have problems with an IEEE 1394 device not provided by Dell — Contact Dell or the IEEE 1394 device manufacturer (see Contacting Dell). Ensur

Press <Num Lk> to disable the numeric keypad if numbers are displayed instead of letters. Verify that the numbers lock light is not lit. Lockup

 Check the Dell MediaDirect help file for information — Use the Help menu to access Dell MediaDirect Help.  To play movies with Dell MediaDirect,

l Save and close any open files and exit any open programs you are not using to see if that resolves the problem. l See the software documentation

 Check the power light — When the power light is lit or blinking, the computer has power. If the power light is blinking, the computer is in Sleep s

  Check the printer documentation — See the printer documentation for setup and troubleshooting information.  Ensure that the printer is turned on

Reinstall the scanner driver — See the scanner documentation for instructions. Sound and Speaker Problems Fill out the Diagnostics Checklist as you

 No sound from headphones  Check the headphone cable connection — Ensure that the headphone cable is securely inserted into the headphone connector