HP 4000 Maintenance & Service Guide HP Compaq 4000 Pro Small Form Factor B - Page 139
Solving Display Problems, Blank screen no video., Cause, Solution, standby, Display, Settings
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Solving Display Problems If you encounter display problems, see the documentation that came with the monitor and to the common causes and solutions listed in the following table. Blank screen (no video). Cause Solution Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on. Bad monitor. Try a different monitor. The cable connections are not correct. Check the cable connection from the monitor to the computer and to the electrical outlet. You may have a screen blanking utility installed or energy saver features are enabled. Press any key or click the mouse button and, if set, type your password. System ROM is corrupted; system is running in Boot Block Emergency Recovery Mode (indicated by eight beeps). Reflash the system ROM with the latest BIOS image. See the "Boot Block Emergency Recovery Mode" section of the Desktop Management Guide for more information You are using a fixed-sync monitor and it will not sync at the Be sure that the monitor can accept the same horizontal resolution chosen. scan rate as the resolution chosen. Computer is in standby mode. Press the power button to resume from standby mode. CAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. Monitor cable is plugged into the wrong connector. If the computer system has both an integrated graphics connector and an add-in graphics card connector, plug the monitor cable into the graphics card connector on the back of the computer. Monitor settings in the computer are not compatible with the 1. In Windows XP Control Panel, double-click the Display monitor. icon and select the Settings tab. In Windows Vista Control Panel, under Appearance and Personalization, select Adjust screen resolution. In Windows 7, right click in an empty space on the desktop and select Screen Resolution. 2. Reset the resolution. Monitor is configured to use an input that is not active. Use the monitor's on-screen menu controls to select the input that is being driven by the system. Refer to the monitor's user documentation for more information on the onscreen controls and settings. Solving Display Problems 129
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