Dell PowerEdge 2300 Installation and Troubleshooting Guide - Page 169

The Video Test Group of the system diagnostics consists of the following eight tests, each of which verifies a particular video function or group of functions: Video Memory Test - Checks the integrity of characters generated from data in the video memory. Video Hardware Test - Checks the functions of the cursor register and the horizontal and vertical retrace bit registers. Text Mode Character Test - Checks the video subsystem's ability to present text mode data. Text Mode Color Test - Checks the video subsystem's ability to present color in text modes. Text Mode Pages Test - Checks the video subsystem's ability to map and present all available video text pages on the monitor screen, one page at a time. Graphics Mode Test - Checks the video subsystem's ability to present graphics mode data and colors. Color Palettes Test - Checks the video subsystem's ability to display all available colors. Solid Colors Test - Checks the video subsystem's ability to show screens full of solid colors. Allows you to check for missing color subpixels. All of these tests, except the Video Memory Test and the Video Hardware Test, are interactive. These interactive tests display images on the monitor screen and require the user to respond with the following steps: y n The following sections describe each of the tests in the Video Test Group. Diagnostic Video Tests A-1