Dell PowerEdge 4300 Installation And Troubleshooting Manual page 184

The Video Memory Test verifies the integrity of the video memory either on the
system board or on a video expansion card. As the test runs, it describes which
64-kilobyte (KB) block of video memory is being tested. When a test is complete, a
message indicates whether the video memory has passed or failed the test. This test
does not require any interaction on your part.
The Video Hardware Test verifies the operation of the cursor registers and the hori-
zontal and vertical retrace bit registers. When a test is complete, a message indicates
whether these registers have passed or failed the test. This test does not require any
interaction on your part.
The Text Mode Character Test consists of a group of subtests that display printable
characters and character attributes. The subtests check character quality and the mon-
itor's ability to display the characters correctly on its screen. A prompt at the bottom
of each screen asks the user to decide whether the display is satisfactory and to
respond by typing or .
If you respond affirmatively to each subtest, the Text Mode Character Test passes. A
negative response to any subtest causes the test to fail.
The following subsections describe the subtests of the Text Mode Character Test in
the order in which they appear.
The 80-column x 25-line character attributes subtest displays four lines of text that
demonstrate normal-intensity video, reverse video, intensified video, and blinking
video.
The 80-column x 25-line character set subtest displays all 256 characters in the Amer-
ican Standard Code for Information Interchange (ASCII) character set in 80-column by
25-line text mode.
The 40-column x 25-line character attributes subtest displays four lines of text in
40-column by 25-line (double-wide) text mode that demonstrate normal-intensity
video, reverse video, intensified video, and blinking video.
A-2 Dell PowerEdge 4300 Systems Installation and Troubleshooting Guide