HP Xw4200 Getting Started Guide HP Workstations xw4100, xw4200, xw6200, and xw - Page 54

Troubleshooting Activity Possible Beeps Cause Recommended Action NOTE: For the following LED activity and beeps, the beeps will be heard through the on-board piezo speaker and not the chassis speaker. Blinks and beeps will be repeated for 5 cycles, after that, only the blinks will continue to repeat. Red Power LED 4 blinks four times once every second, followed by a two-second pause. Power failure (power supply is overloaded) 1. Open the hood and ensure the 4-wire power supply cable is seated into the connector on the system board. 2. Check if a device is causing the problem by removing ALL attached devices (such as hard, diskette, or optical drives, and expansion cards.) Power on the system. If the system enters the POST, then power off and replace one device at a time and repeat this procedure, until failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure all devices are functioning properly. 3. Replace the power supply. 4. Replace the system board. 4-20 www.hp.com Getting Started Guide