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Mouse Problems
Network Problems
Fill out the
Diagnostics Checklist
as you complete these checks.
If you receive an insufficient memory message —
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 for minimum memory requirements. If necessary, install additional memory (see
Installing Memory
).
l
Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see
Memory
).
l
Run the Dell Diagnostics (see
Dell Diagnostics
).
If you experience other memory problems —
l
Reseat the memory modules to ensure that your computer is successfully communicating with the memory (see
Installing Memory
).
l
Ensure that you are following the memory installation guidelines (see
Memory
).
l
Run the Dell Diagnostics (see
Dell Diagnostics
).
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in the
Product Information Guide
.
Check the mouse cable —
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, reconnect the mouse cable as shown in the
Quick Reference Guide
for your computer, and then restart the
computer.
Restart the computer —
1.
Simultaneously press <Ctrl><Esc> to display the
Start
menu.
2.
Type
u
, press the keyboard arrow keys to highlight
Shut down
or
Turn Off
, and then press <Enter>.
3.
After the computer turns off, reconnect the mouse cable as shown on the in the
Quick Reference Guide
for your computer.
4.
Start the computer.
Test the mouse —
Connect a properly working mouse to the computer, and try using the mouse. If the new mouse works, the original
mouse is faulty.
Check the mouse settings —
1.
Click the
Start
button, click
Control Panel
, and then click
Printers and Other Hardware
.
2.
Click
Mouse
.
3.
Try adjusting the settings.
If you are using a PS/2 mouse
1.
Enter system setup (see
Entering System Setup
) and ensure that the
Mouse Port
option is set to
On
.
2.
Exit system setup and restart the computer.
Reinstall the mouse driver
—
See
Reinstalling Drivers and Utilities
.
Run the Dell Diagnostics
—
See
Dell Diagnostics
.
Check for software and hardware conflicts
—
See
Resolving Software and Hardware Incompatibilities
.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in the
Product Information Guide
.
Summary of Contents for OptiPlex 745c
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