07 Dec 2003, 00:26, MIKE ROSS (1:167/133), wrote to Tom Walker:

Hi MIKE.

 MR> BTW having the fan draw air out through the supply case is 
 MR> somewhat less effective since hot air is less dense than cold air. 
 MR> It's more efficient to pump cold air into an enclosure than to draw 
 MR> hot air out of it.

I would generally disagree with that, especially on cases where the PS and
fan are mounted at the top where the hot air is already sitting waiting to
be 'skimmed off'.  Why blow the hot air back down where it naturally
doesn't want to go?

The fans at the bottom of the case can handle pumping in the denser cooler air.


     Good luck...  M.

--- Msged/386 TE 06 (pre)