Toshiba Satellite M45 Maintenance Manual page 124

3 Diagnostic Programs
Subtest 05 DDC Test
This test item is to check whether the video card and the video display support
DDC (Display Data Channel).
Subtest 06 AGP Test
This test item is to report the system's Accelerated Graphics Port status and check
whether AGP registers works normally.
Subtest 07 LCD Panel Test
This test item is to check whether there is any fault in its resolution by displaying
the RGB gradient color screens.
50 Satellite M40/M45 TECRA A4 Dynabook Vx/4 Maintenance Manual
3.8 Video