HP dx7200 HP Compaq Business PC dx7200 MT Service Reference Guide, 1st edition - Page 187
Solving Display Problems, Enable VGA Mode, Enter, Display, Settings, Problem, Cause, Solution
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Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Blank screen (no video). (continued) Monitor cable plugged into the wrong connector. Monitor settings in the computer are not compatible with the monitor. Blank screen and the power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Blank screen and the power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Pre-video memory error. Pre-video graphics error. Solution If the computer system has both an integrated graphics connector and a graphics expansion card connector, plug the monitor cable into the expansion card connector. ✎ If the graphics card is a standard PCI expansion card, you can enable the integrated graphics in Computer Setup. If a PCI-Express graphics card is installed, the integrated graphics can not be enabled. 1. Restart the computer and press F8 during startup when you see "Press F8" in the bottom right corner of the screen. 2. Using the keyboard arrow keys, select Enable VGA Mode and press Enter. 3. In Windows Control Panel, double-click the Display icon and select the Settings tab. 4. Use the sliding control to reset the resolution. 1. Reseat DIMMs. Power on the system. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. For systems with a graphics card: 1. Reseat the graphics card. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Service Reference Guide, dx7200 390812-001 D-11