IBM xSeries 380, Hardware Maintenance Manual

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Hardware Maintenance Manual: xSeries 380
VGA controller test
This test verifies the functionality of the graphics controller in VGA mode. These tests
include:
• vertical synchronization,
• horizontal synchronization,
• graphics controller test,
• attribute controller test, and
• DAC register test.
Video memory test
This test tests the base 256 KB of video memory via a memory pattern test. This test
can be run on all monochrome and all color monitors.
AGP test
This test makes sure that the Accelerated Graphics Port (AGP), the AGP graphics
adapter card, and the AGP connectors and circuitry are all working correctly. Select
AGP Test from the Video menu and press <Enter>. Follow the directions on the
screen.
Video monitor test
These tests verify the video controller output in addition to the communication
between the controller and the display device.
Attribute test
This test tests the video display attributes. This test displays a screen with a blinking
line, reverse video line, high intensity line, and lines in 8 colors in video mode 3
(mode 7 if monochrome).This test can be run on all monochrome and all color
monitors.
Page selection test
This test tests all 8 video pages. This test displays a screen of 0s, then 1s, then 2s, then
3s, and so on, in black and white, indicating that each video page is being used
correctly. This test only runs on color monitors.
Color test
This test displays the possible colors in foreground, background, and border. This test
can be run on all color monitors.
Text mode tests
The text mode tests are: 40 x 25 Display Test