The Motherboard is aGigabyte Z97-HD3: ATX, LG1150, USB 3.0, SATA 6GBs
There is only a 3 pin connector available but the fan has a four pin connector, there are some other pin extensions available and there is a 8 pin space in the psu
Is this a case fan or the CPU fan??? CPU fan obviously needs to go in the CPU fan slot... but if its just a case fan then you can probably just plug it into one of the 3 pin headers on hth mobo - failing that you can plug it into the PSU via molex or some such connection.