>> Passive cooling certainly means heat sinks only, no fans

> of course there's fans in it.

So it's in fact active air cooling, not passive cooling.

"The term "passive" implies that energy-consuming mechanical components like pumps and fans are not used."
http://en.wikipedia.org/wiki/Passive_cooling#Passive_cooling

I'm not sure why you, pampers, Doffo and bash64 seem to think that air cooling is a type of passive cooling.