Their claim to fame came during the NF3/NF4 days DFI LP were the only ticket to high FSBs especially if you wanted to OC a Opty 165, despite being very finicky in their operation. When C2D came along, $90 965P/P35 boards easily hit 500 FSB and since most Core 2 OCs doesn't need such a high FSB anyway...There was little reason to buy DFI anymore; simply offering nothing substantial over the much cheaper competition to justify the cost and the quirks.