Users of older Noctua retail models that don't include a SecuFirm2 mounting system for LGA115x can now obtain the new NM-i115x kit free of charge on Noctua's website in order to make their heatsinks compatible with the new socket. The NM-i115x kit has been tailor-made for LGA115x and features a new, one-piece backplate with fixed struts that has been specifically designed to facilitate installation on LGA115x sockets. Due to the fixed struts, its now even easier to align the backplate and to attach it to the mainboard.
To order the NM-i115x kit, a proof of purchase (photo, scan or screenshot of the invoice) of both an eligible Noctua CPU cooler and either an LGA115x mainboard or LGA115x CPU are required. The NM-i115x mounting kit is compatible with most Noctua retail coolers since 2005 and will also be available in stores at a low service charge.