The mounting is identical on all LGA115x sockets (LGA1150, LGA1151, LGA1155, LGA1156). The following coolers are thus compatible with LGA115x out of the box and don’t require any upgrades in order to be used on this platform: NH-C12P SE14, NH-C14, NH-C14S, NH-D15, NH-D15S, NH-D14, NH-L12, NH-L12S, NH-L9i, NH-L9x65, NH-U14S, NH-U12S, NH-U12P SE2, NH-U9S, NH-UD9L, NH-U9B SE2. In addition, all older models which have been upgraded with the NM-I3 kit can also be used on LGA115x without any further upgrades.
The following coolers can be made compatible to LGA115x using the NM-i115x Upgrade-Kit: NH-C12P, NH-D15 SE-AM4, NH-L9x65 SE-AM4, NH-U12, NH-U12F, NH-U12P, NH-U12P SE1366, NH-U12S SE-AM4, NH-U9, NH-U9F, NH-U9B.
The following coolers are mechanically incompatible with the NM-i115x Upgrade-Kit and can not be made compatible with LGA115x: TR4-SP3 coolers, DX-3647 coolers, DO-Series AMD Opteron coolers, NH-L9a, NH-L9a-AM4.