Memory Problems; Mouse Problems - Dell Dimension U7021 Owner's Manual

U S E A V I R U 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

Memory Problems

CAUTION:
located 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 page 115).
• Reseat the memory modules (see page 76) to ensure that your computer is successfully communicating
with the memory.
• Run the Dell Diagnostics (see page 56).
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 page 76) to ensure that your computer is successfully communicating
with the memory.
• Ensure that you are following the memory installation guidelines (see page 77).
• Your computer supports DDR2 memory. For more information about the type of memory supported by
your computer, see "Memory" on page 115.
• Run the Dell Diagnostics (see page 56).

Mouse Problems

CAUTION:
located in the Product Information Guide.
C H E C K T H E M O U S E C A B L E
1
Check the cable connector for bent or broken pins and for damaged or frayed cables. Straighten bent
pins.
2
Remove mouse extension cables, if used, and connect the mouse directly to the computer.
3
Shut down the computer (see page 67), reconnect the mouse cable as shown on the setup diagram for
your computer, and then restart the computer.
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Solving Problems
- 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
Before you begin any of the procedures in this section, follow the safety instructions
Before you begin any of the procedures in this section, follow the safety instructions
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, F L O P P Y D I S K S
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, O R C D S