Dell OptiPlex Gn Diagnostics and Troubleshooting Guide (.pdf) - Page 115

Color Attributes Subtest (40 x 25), Color Bars Subtest, Text Mode s Test

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Color Attributes Subtest (40 x 25) The 40-column x 25-line color attributes subtest is the same as the previous subtest except that the characters are displayed in 40-column by 25-line (double-wide) text mode. Type y if each character is displayed correctly; otherwise, type n. Color Bars Subtest The color bars subtest displays 16 bars in different colors with background intensity enabled. Under each bar is the name of the color that should be displayed. Type y if each color bar is displayed correctly; otherwise, type n. Text Mode Pages Test The Text Mode Pages Test checks the video subsystem's ability to map and present all available video pages on the monitor screen, one page at a time. The test displays eight successive screens, the first of which contains 21 lines of 77 zeros. The remaining seven screens are identical to the first, except that each screen substitutes a different numeral (1 through 7) for the zeros. Type y if all the rows of numbers on each screen are displayed correctly; otherwise, type n. Figure A-7 shows an example of the first of these screens. Video Text Pages Test 0 Is this video page correct - Y/N? Figure A-7. Text Mode Pages Test Screen Diagnostic Video Tests A-9

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Diagnostic Video Tests
A-9
Color Attributes Subtest (40 x 25)
The
40-column x 25-line
color attributes
subtest is the
same as the previous subtest except that the characters
are displayed in 40-column by 25-line (double-wide) text
mode. Type
y
if each character is displayed correctly;
otherwise, type
n
.
Color Bars Subtest
The color bars subtest displays 16 bars in different colors
with background intensity enabled. Under each bar is the
name of the color that should be displayed. Type
y
if
each color bar is displayed correctly; otherwise, type
n
.
T
ext Mode Pages Test
The Text Mode Pages Test checks the video subsystem’s
ability to map and present all available video pages on
the monitor screen, one page at a time. The test displays
eight successive screens, the first of which contains 21
lines of 77 zeros. The remaining seven screens are identi-
cal to the first, except that each screen substitutes a
different numeral (1 through 7) for the zeros.
Type
y
if all the rows of numbers on each screen are dis-
played correctly; otherwise, type
n
. Figure A-7 shows an
example of the first of these screens.
Figure A-7.
Text Mode Pages Test Screen
Is this video page correct - Y/N?
Video Text Pages Test 0