Dell OptiPlex Gn Diagnostics and Troubleshooting Guide (.pdf) - Page 114

Text Mode Color Test, Color Attributes Subtest (80 x 25)

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Text Mode Color Test The Text Mode Color Test contains three subtests that check the video subsystem's ability to present color in text modes. The following subsections describe these subtests. NOTE: These subtests are valid for color monitors only. Color Attributes Subtest (80 x 25) The 80-column x 25-line color attributes subtest displays a pattern of 16 rows and 16 columns in 80-column by 25-line text mode. Each row has a hexadecimal number in a unique foreground color and each column has a unique background color. Where the same foreground and background color intersect, the hexadecimal number is not visible. Type y if each character is displayed correctly; otherwise, type n. Table A-1 indicates the color in each of the rows and columns. Table A-1. Color Attributes Row or Column Number Foreground Color Background Color 0 black black 1 blue blue 2 green green 3 cyan cyan 4 red red 5 magenta magenta 6 brown brown 7 white white 8 dark gray* black 9 light blue* blue A light green* green B light cyan* cyan C light red* red D light magenta* magenta E yellow* brown F intense white* white * These colors blink during the test. A-8 Diagnostics and Troubleshooting Guide

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A-8
Diagnostics and Troubleshooting Guide
T
ext Mode Color Test
The Text Mode Color Test contains three subtests that
check the video subsystem’s ability to present color in
text modes. The following subsections describe these
subtests.
NOTE: These subtests are valid for color monitors only.
Color Attributes Subtest (80 x 25)
The
80-column x 25-line
color attributes subtest displays
a pattern of 16 rows and 16 columns in 80-column by
25-line text mode. Each row has a hexadecimal number
in a unique foreground color and each column has a
unique background color. Where the same foreground
and background color intersect, the hexadecimal number
is not visible. Type
y
if each character is displayed cor-
rectly; otherwise, type
n
. Table A-1 indicates the color in
each of the rows and columns.
Table A-1.
Color Attributes
Row or
Column
Number
Foreground
Color
Background
Color
0
black
black
1
blue
blue
2
green
green
3
cyan
cyan
4
red
red
5
magenta
magenta
6
brown
brown
7
white
white
8
dark gray
*
black
9
light blue
*
blue
A
light green
*
green
B
light cyan
*
cyan
C
light red
*
red
D
light magenta
*
magenta
E
yellow
*
brown
F
intense white
*
white
*
These colors blink during the test.