Positive, or Negative Pressure

[+Fubar512]

A good article with test results from the Republic of Gamers:

 

http://rog.asus.com/87672012/overclocking/positive-or-negative-pressure-cooling/

[+JediMaster]

Unless negative offered vastly improved cooling (which I would really wonder about), I'd go with positive to keep the dust out any day. Especially as the dust will build up and decrease the efficiency of the cooling anyway.

[+Fubar512]

Unless negative offered vastly improved cooling (which I would really wonder about), I'd go with positive to keep the dust out any day. Especially as the dust will build up and decrease the efficiency of the cooling anyway.

 

Precisely the point. 

 

For years, there have been two camps; Those that believed that a PC should conform to standards set by Intel (which  stated that the most efficient layout involved having an intake fan at the lower front of the case, and an exhaust fan of equal CFM at the upper rear, to encourage airflow by convection, thereby eliminating hot-spots).  And, those that subscribed to the belief that (properly filtered and positioned) intake fans should outnumber, and have superior static pressure values to, the exhaust fans, to the point of building positive pressure in the case. 

 

This test-series vindicates the latter.