Cisco WAVE-274-K9 Hardware Installation Guide - Page 72

Power-On Self Test (POST) Chapter 5 Troubleshooting the System Hardware Table 5-11 POST Diagnostic Front Panel LEDs and Beep Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes four 4 times, once every second, followed by a 2-second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Power failure (power supply is overloaded). 1. Open the hood and ensure the 4 or 6-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 drives, 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 a failure occurs. Replace the device that is causing the failure. Continue adding devices one at a time to ensure that all the devices are functioning properly. 3. Contact Cisco TAC. Red Power LED flashes five 5 times, once every second, followed by a 2-second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Pre-video memory error. CAUTION: To avoid damage to the DIMMs or the system board, you must unplug the computer power cord before attempting to reseat, install, or remove a DIMM module. 1. Reseat DIMMs. 2. Contact Cisco TAC. Red Power LED flashes six 6 times, once every second, followed by a 2-second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. Pre-video graphics error. Contact Cisco TAC. 5-18 Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide OL-17739-01