This message was posted on behalf of Intel Corporation
Our best recommendation is testing the board on a minimal configuration, if possible out of the chassis. Test the board without processors installed looking for a 1-5-4-2 beep code sequence. Test the system without memory looking for 3 regular beep codes. Test with minimum memory installed. Power cycle the system and clear the CMOS. If the board does not respond at all or is stuck in that restarting loop, we recommend replacing it.