Go to Microcenter and buy a 40,50 or 60mm fan and zip ties.
http://www.newegg.com/Product/Produc...LTD-_-35119080
well it's not the best price but the EVERCOOL VC-RE is a drop in replament for the DFI's chipset fan I used this on all my DFI 939 NF4 boards back in the day, generally you can find it cheaper but shipping kills it most places but thats the model you should look for.