Network Problems; Power Problems - Dell GX280DT - GX280 Desktop Computer User Manual

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 —
Windows XP
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click Mouse.
3. Try adjusting the settings.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Mouse icon.
3. Try adjusting the settings.
If you are using a PS/2 mouse
1. Enter 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
Run the Dell Diagnostics
Check for software and hardware conflicts
Network Problems
Fill out the Diagnostics Checklist as you complete these checks.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
Check the network cable connector —
computer and the network jack.
Check the network lights on the front or back of the computer depending on system chassis type. —
that no network communication exists. Replace the network cable.
Restart the computer and log on to the network again
Check your network settings —
settings are correct and that the network is functioning.
Check for software and hardware conflicts
Power Problems
Ensure that the network cable is firmly inserted into both the network connector on the back of the
Contact your network administrator or the person who set up your network to verify that your network
No connection speed light indicates