How it works: CPU : intake funnel + amd fan + 80mm exhaust (restricted vent holes) (31 deg idle) Gfx : side panel intake vents + zalman + 60mm exhaust (39 deg idle) PSu exhasut + intake vents in front of hardrive (32 deg idle) chiptset 34deg (idle) I just wanted to exhuast the hot air from the case before it statred to effect the generic psu, so i cut a hole in the thin sheet metal, and installed a 60mm fan for testing and i got a big surprise! not only did hot air vent out faster but the other components got as much as 5 deg cooler. before chipset hit: 43 deg under gfx card heat after : 38 deg / 39 deg(silent) the temp drop was also on the cpu load temp 42 to 39 but the gfx card was best; before my max temp never varied with clock frequency always 63 deg. now 300:350 (barely 54 deg); 415:496 (59/60 deg) my theory is: basic fliud mechanics volume in = volume out. the exhaust fans pull so much air out of the case that they not only pull in air thru the vents but also cause air in the case (hot air) to move in currents to the exhausts(2+psu). i am 60mm(25mm thick) firstname.lastname@example.orgV thta i got from a car parts store. also tried a spare fan from a mircofin socket A cooler: dynatron mircofin (15mm thick) email@example.com top speed 5200 rpm (loud -48 db), i forgot the temps because it was too loud, @silent(5v) was same.