[Kobuchi]

Originally Posted by Ruiner

http://www.anandtech.com/casecooling...spx?i=2276&p=1I do like the HDD/PSU 'tunnel' idea, i.e. if the PSU is getting air that has been heated by the drives only.

That's an exhast from the case. So: case air -> HDD cage -> PSU enclosure -> out.

BTX specifies a CPU HSF formed as a short duct, the "thermal module": "At the front of the case is a rubber surround which the thermal module will fit into". This is where air enters the case. The fan is mounted in the thermal module, not the case.

That constrains alternate cooling solutions. Maybe some case manufacturers will set the intake further away, and make the gasket optional.