CPU Heatsink Cooling (Quick Simple Question)

[Zephik]

Is it better to pass air over and through your heatsink or suck the air away from it. Both scenarios have an air duct by the way.

-SF

[nil8]

With the way most heatsinks are designed, it's for air to be blown on them. Sucking air away only moves around around the tips of the fins and doesn't cover ~80% of the airflow of a fan blowing on the heatsink.

If you were talking about some other design besides the typical cpu heatsink, please specify.

[silverdemon]

try it and measure temps. like nil8 said most are designed for blowing onto them. But some might work better when air is sucked through...