HP Pro 6305 Maintenance and Service Guide HP Compaq Pro 6305 Microtower Busine - Page 175

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 Memory is installed incorrectly or is bad. 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. Solving Processor Problems If you encounter processor problems, common causes and solutions are listed in the following table. Table 8-13 Solving Processor Problems Poor performance is experienced. Cause Processor is hot. Solution 1. Make sure the airflow to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heat sink is installed properly. Power LED flashes Red three times, once every second, followed by a two second pause. Cause Solution Processor is not seated properly or not installed. 1. Check to see that the processor is present. 2. Reseat the processor. Power LED flashes Red eleven times, once every second, followed by a two second pause. Cause Solution The current processor does not support a feature previously 1. Install a TXT capable processor. enabled on this system. 2. Disable TXT in the Computer Setup (F10) utility. 3. Reinstall the original processor. Solving CD-ROM and DVD Problems If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the following table or to the documentation that came with the optional device. Solving Processor Problems 165