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Fan Placement - Airflow Maximization

K

kuda

Junior Member
i was wondering if anand had ever done a test on fan placement in PC's and tested airflow / system temps. has anyone else?

someone pointed me here - Airflow simple test

can someone shed more light on the subject? think the link above is a bit dated but basic's should be about the same. though he would prolly keep his neighbor up with so many 80mm fans going.

thanks much

~J
 
My opinion is that as long as you keep turbulence out of the system you should be fine. Like if you have a couple fans in the front of the case blowing in and a couple in the back exhasuting the air, it doesn't make a lot of sense to have a fan on the side of the case as it would disrupt the air current. My brother and I experimented with this and found that when we eliminated the side fan and fabbed some plexi ramps to direct the airflow from front to back a bit better that temps improved by ~3 degrees. Not a big difference but a fun experiment anyway.
 
For maximum efficiency, the airflow should move in a smooth, straight line. In from the front bottom of the case, and out at the middle/top rear of the case. A side vent with duct can be used to direct cold air to the CPU cooling fan. This should reduce the CPU temp by at least 2C.

Use the largest fan at the lowest rpm to achieve the optimum balance between cooling efficiency and noise.

When possible, use a large CPU fan cooler to ALSO cool the RAM and MOSFET components on the motherboard.
 
Originally posted by: furballi
For maximum efficiency, the airflow should move in a smooth, straight line. In from the front bottom of the case, and out at the middle/top rear of the case. A side vent with duct can be used to direct cold air to the CPU cooling fan. This should reduce the CPU temp by at least 2C.

Use the largest fan at the lowest rpm to achieve the optimum balance between cooling efficiency and noise.

When possible, use a large CPU fan cooler to ALSO cool the RAM and MOSFET components on the motherboard.
Click to expand...

Very good advice! :thumbsup:
 
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