HP EliteDesk 800 95W G4 Maintenance and Service Guide - Page 75
Red six times, once every second, followed by a two second pause, and the computer
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Blank screen (no video). Cause Monitor is configured to use an input that is not active. Solution 2. Expand the Resolution box, and then use the sliding control to reset the resolution. 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 on-screen controls and settings. 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 stop after fifth iteration but LEDs continue flashing.) Cause Solution Pre-video memory error. 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. 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 stop after fifth iteration but LEDs continue flashing.) Cause Solution Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card (if applicable). Power on the system. 2. Replace the graphics card (if applicable). 3. Replace the system board. For systems with integrated graphics, replace the system board. Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computer beeps seven times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution System board failure (ROM detected failure prior to video). Replace the system board. Monitor does not function properly when used with energy saver features. Cause Solution Monitor without energy saver capabilities is being used with energy saver features enabled. Disable monitor energy saver feature. Solving display problems 67
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