Users Guide
Solving Problems: Dell OptiPlex 320 User's Guide
file:///N|/For_lekha/For%20Deepa/Nadia/UG/A00/en/nadia-temp-working-jul19/Nadia_UG_A00/Output/solving.htm[5/22/2015 10:43:16 AM]
Check the monitor cable connection —
If you purchased a graphics card, ensure that the monitor is connected to the card.
Ensure that your monitor is properly connected (see the Quick Reference Guide that came with your
computer).
If you are using a video extension cable and removing the cable solves the problem, the cable is
defective.
Swap the computer and monitor power cables to determine if the power cable is defective.
Check the connector for bent or broken pins. (It is normal for monitor cable connectors to have missing
pins.)
Check the monitor power light — If the power light is off, firmly press the button to ensure that the
monitor is turned on. If the power light is lit or blinking, the monitor has power. If the power light is blinking,
press a key on the keyboard or move the mouse.
Test the electrical outlet — Ensure that the electrical outlet is working by testing it with another device,
such as a lamp.
Test the monitor — Connect a properly working monitor to the computer, and try using the monitor. If the
new monitor works, the original monitor is faulty.
Check the diagnostic lights — See Diagnostic Lights
.
Check the card setting — Enter system setup and ensure that Primary Video option is set correctly. Exit
system setup and restart your computer (see System Setup
).
Run the monitor self-test — Check the monitor documentation for more information.
If the screen is difficult to read
Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and
brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.
Move the subwoofer away from the monitor — If your speaker system includes a subwoofer, ensure that
the subwoofer is at least 60 cm (2 ft) away from the monitor.
Move the monitor away from external power sources — Fans, fluorescent lights, halogen lamps, and
other electrical devices can cause the screen image to appear "shaky." Turn off nearby devices to check for
interference.
Adjust the Windows display settings —
1. Click the Start button, click Control Panel, and then click Appearance and Themes.
2. Click Display and click the Settings tab.
3. Try different settings for Screen resolution and Color quality.
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