Quote Originally Posted by Minstadave
It gets very hot with an arctic cooler fitted and spins up after 45 degrees and gets noisey, thats with AS5.

Yep the fan on it is "winnie"

See if you can't mount an 80mm fan blowing over the area, the nb fan is controlled in bios and also smart guardian. If you can get some cool air blowing towards it you can turn the fan down on the nb so it's not as noticable. IMO if you have good airflow in the case then a passive hs like has been illustrated would work fine too. I've just never had any problems in my case with either of my NF4 and temps. they run around 45c which IMO is normal and under stress get to 50c but I've never had any issues with the temps causing hardware problems.