Quote:
Originally posted by Drummahjake
So you are saying that instead of having to pulling fans to have a pull and a push fan? I thought that was proven to be inefficient? I could be wrong though.
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It's not energy efficient, but it will get you the air flow that you need. It does work.
If you look around here, or even the OC article called "Radiator Roundup", by Bill Adams, you'll find that there is a large benefit by having a pressure drop equivalent to 1/4 inch of water. Unfortunately, axial fans don't flow any air at that kind of pressure drop, so what you end up with, is a fan that will push as much air as it can. Your pressure drop will probably be in the order of 1/20 inch water, if even that.
The problem with axial fans is the gap between the impeller, and the housing. To put it more bluntly, you couldn't inflate a ballon with a regular fan.
Having fans in a push-pull configuration helps to alleviate this problem. The flow won't double, and you still won't have 1/4 inch H2O pressure drop, but you will have a better airflow. I'd guesstimate the flow increase to be 20%. You may or may not see your CPU temps drop as a result, so it's up to you.