Dell Inspiron 7000 Reference And Troubleshooting Manual page 129

The Video Test Group of the Dell Diagnostics consists of the following eight tests,
each of which verifies a particular video function or group of functions on your display
or on an external monitor:
Video Memory Test — Checks the integrity of characters generated from data in
the video memory
Video Hardware Test — Checks the functions of the cursor register and the hori-
zontal and vertical retrace bit registers
Text Mode Character Test — Checks the video subsystem's ability to present text
mode data
Text Mode Color Test — Checks the video subsystem's ability to present color in
text modes
Text Mode Pages Test — Checks the video subsystem's ability to map and
present all available video text pages on the display or monitor, one page at a
time
Graphics Mode Test — Checks the video subsystem's ability to present graphics
mode data and colors
Color Palettes Test — Checks the video subsystem's ability to display all available
colors
Solid Colors Test — Checks the video subsystem's ability to show screens full of
solid colors and to display all pixels
All of these tests, except the Video Memory Test and the Video Hardware Test, are
interactive. These interactive tests display images on the display or monitor and
require you to respond with the following steps:
1. Examine a displayed image for correctness.
2. If an image is correct, type y.
3. If an image is incorrect, type n.
The following sections describe each of the tests in the Video Test Group.
Diagnostic Video Tests B-1