I have a Noctua NH-U12P and a HAF 932 which has a 140mm exhaust and a 230mm top fan. Which way should I mount the fan to get the best results? most people have the fan blowing out the exhaust but most people dont have a 230mm top fan either..
I use a tower cooler in a HAF 932. In such cases I always find it beneficial to have the CPU cooler blowing upwards out the top of the case. The best place for the fan therefore is underneath the cooler, so make sure you have a secure means of attaching it. This is particularly prevalent with the HAF as the stock rear 140m fan is very weak. The 230mm fan, while not strong, is far more effective. For reference, I have since replaced the rear 140mm fan with a Sharkoon 1500rpm model instead.
