i had to use the slim x3 heat sink as i need to fit it in a case already with a bfl 30gh , I'm using the thermal pads from keefe in this thread.
i will see if i can get a different heat sink and test it but it might not be possible for my area that I'm placing it i will have to see.
the 212 like i said in pass post will be way to big for the pc case that the chili will be in with the 30GH BFL. I have to see my options this week and see if i can mount the chili in a different part of the case maybe upside down with spacers inbetween the case and the the chili like on a hdd mount or the dvd rom but under it i will have to see untill then.
overall if i touch the heatsink its not that hot at all
bottom of the board is like 5 to 7 secs before its burning u
right now i have legs on the bottom of the board raised about 3 to 4 inchs up
the legs have feet on them rubber work nice. i did notice that when it was just laying on bottom of the board on my wood table it would hash at 19GH with the feet on it it now hashs at 22GH
so maybe the bottom of the board needs more cooling like u said
i will see what happends tonight when i add it to its main area, right now its at my apt and its frezzing in here so i would think it would be hashing faster lol
i will ask some techs at work if they have any heatsinks laying around
maybe i can get some for free before buying one