HP P Class 450/500/550/600/650/700/750 fx5 and fx10 Configuration Guide - Page 28
Table 1-4, Solution, Explanation, Table 1-5
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HP Visualize fx5 and fx10 Graphics Cards Troubleshooting Table 1-4 Solution Explanation If the LCD screen does not report any error, try another graphics card, if available. Even if it is not an HP Visualize fx graphics card, the boot sequence should be displayed using the VGA standard driver. If the boot sequence is displayed correctly using a replacement graphics card, your HP Visualize fx graphics card may be faulty. PROBLEM: The computer boots in VGA, but the screen goes blank or is corrupted when switching to high-resolution mode. Table 1-5 Solution Explanation Check that your monitor supports the HP Visualize fx graphics card resolution and refresh rate selected. If the monitor does not support the selected resolution, boot in VGA and then change your settings. Run the diagnostics tool. Check that you are using the correct video driver. The video driver version is displayed in the About panel. This problem may occur if you have just changed your monitor. For more information on the diagnostics tool, see the section "Diagnostics Tool." You may have updated the HP Visualize fx driver with the wrong version. See the section "Updating The HP Visualize fx Driver." 28 Chapter 1