HP Dc5700 HP Compaq dc5700 Business PC Service Reference Guide, 1st Edition - Page 162
Emergency Recovery Mode of, image. See the Boot Block - beeps nine times
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POST Error Messages POST Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Red 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. Red 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. Red 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. Beeps 6 7 8 Possible Cause Pre-video graphics error. System board failure (ROM detected failure prior to video). Invalid ROM based on bad checksum. Recommended Action 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. Replace the system board. 1. Reflash the ROM with the latest BIOS image. See the "Boot Block Emergency Recovery Mode" section of the Desktop Management Guide on the Documentation and Diagnostics CD. 2. Replace the system board. C-10 437804-001 Service Reference Guide, dc5700