Just got off the phone with Sam - it is a pleasure to talk to him and gives answers to all questions, so if you have any questions I suggest you call him 
I asked him if you could install a water cooling kit and he said that these ASIC chips are bigger in size, thus the market solutions, which are for CPU cooling would probably not work.
Which made me wonder how they've used the Arctic A30 cooler, when it is for CPU die sizes too.
But he said there is absolutely no problem to change the fans if you want less noise or higher performance.
Also I wasn't sure how noisy the miners are, thinking they will produce more noise, compared to a GPU miner, but I was totally wrong - he said it would be much quieter and it makes sense as GPU fans are much smaller and spin much faster (4000rpms for example) So the bigger the fan the quieter it is
I can't remember where (in news letter or on forum) but I think KnC had mentioned exactly what type of heat sink/cooler (off the shelf) they were going to use and it was to be modified.I asked him if you could install a water cooling kit and he said that these ASIC chips are bigger in size, thus the market solutions, which are for CPU cooling would probably not work.
Which made me wonder how they've used the Arctic A30 cooler, when it is for CPU die sizes too.
But he said there is absolutely no problem to change the fans if you want less noise or higher performance.
Also I wasn't sure how noisy the miners are, thinking they will produce more noise, compared to a GPU miner, but I was totally wrong - he said it would be much quieter and it makes sense as GPU fans are much smaller and spin much faster (4000rpms for example) So the bigger the fan the quieter it is
I'm sure it will be a CPU cooler with modifications to suit their chip.