Changi, Thanks for message. I assume you have checked graphics as well. Perhaps the m/b is DOA? or was it working. Not clear as to whether the cpu or the m/b is new. Perhaps you could confirm on the forum and others with more knowledge might be able to help and make more suggestions.
have you connected all of the front panel wires to the motherboard correctly as pushing the power button will not start the boot process. Have you read the manual section that tells you how to connect them
This thread is now locked and can not be replied to.