After an hour online with Intel tech support, it was determined that a DH55HC motherboard was faulty and has to be RMA'd. Graphics with a i5-650 processor would not work, though the board worked fine with an X-16 card. As I used an OEM version of Win. 7-64, would it be possible for Intel to install firmware on the replacement board that would allow the operating system to see the new board as it would have the board that was replaced? The only component changed will be the motherboard, all drives including boot drive will remain unchanged.