Yes just using two of those Arctic Breeze mobiles (the one without the stand). Seem to do a very good job at keeping it cool. I did actually fit heatsinks onto the chips (on the other side from the preinstalled large heatsinks). Lots on ebay, and the fans hit the erupters from that side so the ridged heatsinks I installed keep nice and cool. I can't say it makes anything run faster, probably more stable though and may last longer until I sell them.