Quote Originally Posted by CryptiK View Post
Under full load on a hot day my board's PWM gets to 46*C+, this is using a true with no real direct airflow over PWM sinks except case rear and top fans pullng air past them. Guys with quads, especially watercooled, report PWM temps over 55*C. I'm not sure what constitutes 'too hot' though.
I have used the supplied Asus fan on the PWM beside the back panel which also helps cool the NB thanks to the heat pipe and the psu fan is sucking air over the other set which has a huge heatsink on it so I really dont think it would be worthwhile to watercool them. Asus knew this board would get watercooled, they even collaborated with Swiftech to produce a NB block just for it http://www.performance-pcs.com/catal...ducts_id=24408