Dell PowerEdge 6350, Installation And Troubleshooting Manual

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Running the Dell Diagnostics 5-17
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Graphics Mode Test
Checks the video subsystem’s ability to present data and color in graphics
modes.
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Color Palettes Test
Checks the video subsystem’s ability to display all of the available colors.
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Solid Colors Test
Checks the video subsystem’s ability to show screens full of solid colors. Allows
you to check for missing color subpixels.
Many of these tests display characters or graphics on the screen for you to verify.
Samples of these screens are shown in Appendix A, “Diagnostic Video Tests.”
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Many of the symptoms that would prompt you to run a subtest in the Video Test
group are obvious, because the monitor is the visual component of the computer sys-
tem. Before you run the Video Test group or any of its subtests, you should make sure
that the problem is not in the software or caused by a hardware change. You should
also try running all of the software support utilities provided for the monitor and the
video subsystem.
If the following symptoms still occur, run the appropriate test(s) as follows:
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If the monitor shows a partially formed or distorted image, run all of the subtests
in the Video Test group.
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If the alignment of text or images is off, regardless of the program you are run-
ning, run the Text Mode Character Test, Text Mode Pages Test, and Graphics
Mode Test.
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If you have a color monitor or a program that runs in color, but the color is inter-
mittent or not displayed at all, run the Text Mode Color Test, Color Palettes Test,
and Solid Colors Test.
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If the monitor malfunctions in one mode but works fine in another (for example,
text is displayed correctly, but graphics are not), run the Text Mode Character
Test, Text Mode Color Test, Text Mode Pages Test, and Graphics Mode Test.