I would recommend testing the motherboard out of the chassis to discard grounding issues.
Also make sure the processor is properly installed, and also try the system with no RAM to see if you hear 3 beeps.
If you hear 3 beeps there is a problem with the motherboard, if the processor works fine on another motherboard, then this one is defective.
Keep in mind that the Intel(R) desktop board D865GLC is end of interactive support, this means that Intel no longer provie support via chat, email or phone for this product. The only support available for this product is the one located at:
Thanks for your reply aldopho:
I will try the board again without memory, the processor works fine on original board, and I would use it except the 2 sata sockets on the board have deteriorated over the years and have cracked off due to movement of cables over time. Now I cannot get the cables to remain in contact with the pins. Thus the new board.
I suppose it could be the new board is faulty.