Dell TX453 manual Memory Problems, Network Problems, General

•If necessary, uninstall and then reinstall the program.

B A C K U P Y O U R F I L E S I M M E D I A T E L Y

U S E A V I R U S - S C A N N I N G P R O G R A M T O C H E C K T H E H A R D D R I V E , F L O P P Y D I S K S , O R CD S

S A V E A N D C L O S E A N Y O P E N F I L E S O R P R O G R A M S A N D S H U T D O W N Y O U R C O M P U T E R T H R O U G H T H E S t a r t M E N U

S C A N T H E C O M P U T E R F O R S P Y W A R E — If you are experiencing slow computer performance, you frequently receive pop-up advertisements, or you are having problems connecting to the Internet, your computer might be infected with spyware. Use an anti-virus program that includes anti-spyware protection (your program may require an upgrade) to scan the computer and remove spyware. For more information, go to support.dell.com and search for the keyword spyware.

R U N T H E D E L L D I A G N O S T I C S — See "Dell Diagnostics" on page 73. If all tests run successfully, the error condition is related to a software problem.

Memory Problems

Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 143) as you complete these checks.

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

I F Y O U R E C E I V E A N I N S U F F I C I E N T M E M O R Y M E S S A G E —

•Save and close any open files and exit any open programs you are not using to see if that resolves the problem.

•See the software documentation for minimum memory requirements. If necessary, install additional memory (see "Memory" on page 115).

•Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see "Memory" on page 115).

•Run the Dell Diagnostics (see "Dell Diagnostics" on page 73).

I F Y O U E X P E R I E N C E O T H E R M E M O R Y P R O B L E M S —

•Reseat the memory modules (see "Memory" on page 115) to ensure that your computer is successfully communicating with the memory.

•Ensure that you are following the memory installation guidelines (see "Memory" on page 115).

•Run the Dell Diagnostics (see "Dell Diagnostics" on page 73).

Network Problems

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

General

C H E C K T H E N E T W O R K C A B L E C O N N E C T O R — Ensure that the network cable is firmly inserted into both the

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Troubleshooting