HP dx2100 Troubleshooting Guide - Page 22

Troubleshooting Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action Green Power LED flashes six times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 6 Pre-video graphics For systems with a graphics card: error. 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Green Power LED flashes seven times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 7 System board failure (ROM detected failure prior to video). Replace the system board. Green Power LED flashes eight times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. 8 Invalid ROM based on bad checksum. 1. Reflash the system ROM with the latest BIOS image. 2. Replace the system board. Two beeps when password entered. 2 Incorrect Enter the correct password. password entered. One beep when password entered. 1 Correct password No action required. entered. 2-12 www.hp.com Troubleshooting Guide