HP dx2718 service reference guide: HP Compaq dx2710 MT/dx2718 MT/dx2710 SFF Bu - Page 88
Problem, Cause, Solution, Power LED flashes Red six
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Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. Pre-video graphics error. Monitor does not function properly when used with energy saver features. Dim characters. Monitor without energy saver capabilities is being used with energy saver features enabled. The brightness and contrast controls are not set properly. Cables are not properly connected. Blurry video or requested resolution cannot be set. The picture is broken up, rolls, jitters, or flashes. If the graphics controller was upgraded, the correct video drivers may not be loaded. Monitor is not capable of displaying requested resolution. The monitor connections may be incomplete or the monitor may be incorrectly adjusted. Vibrating or rattling noise coming from inside a CRT monitor when powered on. Clicking noise coming from inside a CRT monitor. Monitor needs to be degaussed. Monitor degaussing coil has been activated. Electronic relays have been activated inside the monitor. Solution 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. Disable monitor energy saver feature. Adjust the monitor brightness and contrast controls. Check that the graphics cable is securely connected to the graphics card and the monitor. Install the video drivers included in the upgrade kit. Change requested resolution. 1. Be sure the monitor cable is securely connected to the computer. 2. In a two-monitor system or if another monitor is in close proximity, be sure the monitors are not interfering with each other's electromagnetic field by moving them apart. 3. Fluorescent lights or fans may be too close to the monitor. Degauss the monitor. None. It is normal for the degaussing coil to be activated when the monitor is powered on. None. It is normal for some monitors to make a clicking noise when turned on and off, when going in and out of standby mode, and when changing resolutions. D-8 483941-001 Service Reference Guide