I can state the conclusions I drew from the testing:
Push/Pull is a horrible choice because the increased noise far surpasses the improvement in cooling. Based on the increase in noise, I can't see any way that undervolted push/pull fans would ever beat a single fan running at the same noise level.
For the BIX there is almost no advantage to adding a shroud for "push" config but a slight advantage to adding a shroud when pulling air through the radiator (this seems sensible based upon how axial fans respond to intake restriction). I'd expect a far more pronounced difference with shrouds on a heatercore for obvious reasons.
|