Bought this cooler for my x58a-ud7 mobo. However, as soon as I got it, the box said I'd need to purchase an CS4A adapter clip for the 1366 socket which Amazon failed to mention after stating it was compatible with this 1366 socket. But this adapter clip does not fit my motherboard. Am I missing something? Does this cooler need some sort of backplate? I've built systems before but this has me totally stumped. Thanks