I never thought I would say the cooling was too good in a PC!!!.
I transplanted my main PC into a new case a while back. A Coolermaster Stealth Sniper Black Edition. This new case has 3x 200mm intake fans and 1x 120mm exhault fan. The PSU is also mounted at the bottom and was a new one at the same time as the new case. A Cooler Master Silent Pro Modular PSU. Plus an Arctic Cooling Freezer Pro CPU heatsink/fan. All together it makes for amazing system cooling, with very quiet operation due to the size of the fans.
However.. now it is winter and getting colder by the day I've encountered a new problem. In the past my PCs have managed to keep my office nice and warm in the winter months and I've not even needed to have the radiator on in that room. But this PC setup is proving too good at cooling down the system. In fact it is cooling down the room!!!
As an example, this morning it was about 20 degrees in the room, but having the main PC system running for most of the day now the room is now 17.5 degrees and starting to feel a little chilly, and the system is running at about 18-20 degrees CPU temps. Quite amazing, but also quite cold!
One thing's for sure. Come summer it should be nice and cool in here!