Dell OptiPlex 320 User Guide - Page 128

If the screen is difficult to read - video controller

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Page 128 highlights

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. Back to Contents Page

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If the screen is difficult to read
Back to Contents Page
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.
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.