HP Dc7100 HP Compaq Business Desktop dc7100 Series Service Reference Guide, 3r - Page 254
Problem, Cause, Solution, Reseat DIMMs. Power on - video controller driver
UPC - 829160356877
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Problem 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. 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. Blank screen and the power LED flashes Red eight times, once every second, followed by a two second pause, and the computer beeps eight times. Beeps continue for five iterations after which the LED flashes will continue until the problem is resolved. Monitor does not function properly when used with energy saver features. Dim characters. Cause Pre-video memory error. Solution 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. Pre-video graphics error. 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. Invalid ROM based on checksum. 1. Reflash the ROM using a ROMPaq diskette. 2. Replace the system board. 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. 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. Blurry video or requested resolution cannot be set. If the graphics controller was upgraded, the correct video drivers may not be loaded. Install the video drivers included in the upgrade kit. D-12 361288-003 Service Reference Guide, dc7100