The easiest way to improve cooling on the 7237 is just to move the front fan to the rear fan mount, blowing out. The case bezel is very restrictive, with the rearmount, air can also be drawn in thru the lower vent holes on the side of the case. If that isn't good enough, go to each successive mod, until you are satisfied. phase 2, install a front fan, too. phase 3, cut away the restrictive stock fan grilles and install wire fan grilles. phase 4, open up the bottom of the bezel, install taller feet. phase 5, drill out the vent holes in the bezel front. At this point, all the easy stuff is done.