Intel S5520SC Service Guide - Page 49

Troubleshooting LED Information The Intel® Workstation board S5520SC includes LEDs that can aid in troubleshooting your system. See "Intel® Light-Guided Diagnostics". BIOS POST Beep Codes The following table lists the POST error beep codes. Prior to system video initialization, the BIOS uses these beep codes to inform users of error conditions. Please note that not all error conditions are supported by BIOS beep codes. Number of Beeps 3 Table 9. BIOS POST Error Beep Codes Reason for the Beeps and Action to Take Memory error. „ Make sure the DDR3 memory DIMMs comply with the system requirements. „ Make sure the DDR3 memory DIMMs were populated according to the system requirements. „ Remove the DDR3 memory DIMMs and re-seat them. „ Replace the DDR3 Memory DIMMs with known good modules. The Intel® Workstation board S5520SC integrated Baseboard Management Controller (BMC) provides the following additional beep codes: Number of Beeps 1-5-2-1 1-5-4-2 1-5-4-4 Table 10. BMC POST Error Beep Codes Reason for the Beeps and Action to Take No CPUs installed or first CPU socket is empty. Power fault: DC power unexpectedly lost (power good dropout). Power control fault (power good assertion timeout). Intel® Workstation Board S5520SC Service Guide 39