Push vs pull definitely depends on the fan, and even then, it also depends on the experiment and measurements. Overclex results have been superseded by more recent and more thorough testing. Martin's tests (including the V1 test, which he links in the V2 tests) show that push vs pull depends on the type of fan, the speed of the fan, and the heat load. Generally speaking, push is more effective than pull, but there are some exceptions. Here's Martin's summary:
OK I will try again. To get positive pressure most of my fans need to do what? I have decided to use the radiator in the roof and have bought a couple of Enermax Cluster whites. One for the rad and the other beside it. This will give me two 120mm in the front one, single in roof, one on the radiator and finally two 90 in the rear of the case. How should these fans be configured in the Pavum case I have?
Personally I'd configure the two front and two rear as intakes and the roof and rad as exhaust. That way you aren't pushing warm air into the case.
The carcass of a dead fan makes a great cheep shroud for distancing your working fan from the radiator, a bit thick but it works. Or you could buy some thick neoprene and cut out to size, the great thing about that is it would provide a gasket at the same time.
The carcass would need to be white which I do not think I have but I do have some thick (ish) sound proofing material that might do. Thanks.
