CPU fan fit

It will depend upon the manufacturer. But there is a good chance that it will.

Here is a popular example the Noctua NH-D14.


Here is the list of LGA Sockets that are supported: Intel LGA1366 / 1156 / 1155 / 775 / 1150.

It is best to consult the manufacturer. But it easy to test it on the motherboard, and if it doesn't fit there may be an adapter kit. If not, there are many that will fit.