Dell Insp 640 M Manual

Troubleshooting91
SECTOR NOT FOUND—The operating system cannot locate a sector on the hard drive. You may have a 
defective sector or corrupted FAT on the hard drive. Run the Windows error-checking utility to check the 
file structure on the hard drive. See the Windows Help and Support Center for instructions. To access 
the Help and Support Center, see Windows Help and Support Center on page 13. If a large number of 
sectors are defective, back up the data (if possible), and then reformat the hard...

92Troubleshooting
IF YOU HAVE PROBLEMS WITH AN EXPRESSCARD NOT PROVIDED BY DELL—Contact the ExpressCard 
manufacturer.
IEEE 1394 Device Problems
 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product 
Information Guide.
E
NSURE THAT THE IEEE 1394 DEVICE IS RECOGNIZED BY WINDOWS—
1Click the Start button and click Control Panel.
2Click Printers and Other Hardware.
If your IEEE 1394 device is listed, Windows recognizes the device.
IF YOU HAVE PROBLEMS...

Troubleshooting93
TO VERIFY THAT THE PROBLEM IS WITH THE EXTERNAL KEYBOARD, CHECK THE INTEGRATED KEYBOARD—
1Shut down the computer.
2Disconnect the external keyboard.
3Turn on the computer. 
4From the Windows desktop, click the Start button, point to All Programs→ Accessories, and click 
Notepad. 
5Type some characters on the internal keyboard and verify that they appear on the display.
If the characters appear now but did not with the external keyboard, you may have a defective external 
keyboard....

94Troubleshooting
CHECK THE SOFTWARE DOCUMENTATION—If necessary, uninstall and then reinstall the program. Software 
usually includes installation instructions in its documentation or on a floppy disk or CD.
A program is designed for an earlier Microsoft® Windows® operating system
RUN THE PROGRAM COMPATIBILITY WIZARD—The Program Compatibility Wizard configures a program 
so it runs in an environment similar to non-Windows XP operating system environments.
1
Click the Start button, point to All Programs→...

Troubleshooting95
Other software problems
CHECK THE SOFTWARE DOCUMENTATION OR CONTACT THE SOFTWARE MANUFACTURER FOR TROUBLESHOOTING 
INFORMATION—
 Ensure that the program is compatible with the operating system installed on your computer.
 Ensure that your computer meets the minimum hardware requirements needed to run the software. 
See the software documentation for information.
 Ensure that the program is installed and configured properly.
 Verify that the device drivers do not conflict with the...

96Troubleshooting
Network Problems
 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product 
Information Guide.
C
HECK THE NETWORK CABLE CONNECTOR—Ensure that the network cable is firmly inserted into both the 
network connector on the side of the computer and the network port or device.
CHECK THE NETWORK LIGHTS ON THE NETWORK CONNECTOR—No light indicates that no network 
communication exists. Replace the network cable.
RESTART THE COMPUTER AND LOG...

Troubleshooting97
CHECK THE AC ADAPTER—Check the AC adapter cable connections. If the AC adapter has a light, 
ensure that the light is on.
CONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET—Bypass power protection devices, power 
strips, and the extension cable to verify that the computer turns on.
ELIMINATE POSSIBLE INTERFERENCE—Turn off nearby fans, fluorescent lights, halogen lamps, or other 
appliances.
ADJUST THE POWER PROPERTIES—See Power Management Modes on page 39.
RESEAT THE MEMORY...

98Troubleshooting
CHECK THE SCANNER DOCUMENTATION—See the scanner documentation for setup and troubleshooting 
information.
UNLOCK THE SCANNER—Ensure that your scanner is unlocked if it has a locking tab or button.
RESTART THE COMPUTER AND TRY THE SCANNER AGAIN
CHECK THE CABLE CONNECTIONS—
 See the scanner documentation for cable connection information.
 Ensure that the scanner cables are securely connected to the scanner and the computer.
VERIFY THAT THE SCANNER IS RECOGNIZED BY MICROSOFT WINDOWS—...

Troubleshooting99
REINSTALL THE AUDIO DRIVER—See Reinstalling Drivers and Utilities on page 101. 
RUN THE DELL DIAGNOSTICS —See Dell Diagnostics on page 81.
 NOTE: The volume control in some MP3 players overrides the Windows volume setting. If you have been listening 
to MP3 songs, ensure that you did not turn the player volume down or off.
No sound from headphones
CHECK THE HEADPHONE CABLE CONNECTION—Ensure that the headphone cable is securely inserted into 
the headphone connector (see audio connectors...

100Troubleshooting
CHECK THE BATTERY—If you are using a battery to power your computer, the battery charge may be 
depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
TEST THE ELECTRICAL OUTLET—Ensure that the electrical outlet is working by testing it with another 
device, such as a lamp.
CHECK THE AC ADAPTER—Check the AC adapter cable connections. If the AC adapter has a light, 
ensure that the light is on.
CONNECT THE COMPUTER DIRECTLY TO AN...