"Ed Medlin" wrote:
> Each layout and case is different....
> [......]
> Getting as much outside (cooler) air to the critical components
> and getting as much hot air back out is the goal. HS's by nature
> cause turbulence when cooling the CPU, but as far as the case
> itself, it may take a bit of tweaking here and there to get the best
> results, laminar airflow and/or turbulent airflow.


Absolutely correct. Cool air that contacts the components per
unit time is what is important. Whether the turbulence that
promotes that is caused by design or by accident is not
important to the heated parts. And especially since each case
has its own heat generation distribution and its own hardware
combination and distribution and its own cabling arrangement,
air flow in different cases travels different routes with different
velocities at various points, and cooling requirements and
methods from one case to another can differ greatly.

As for HSes (heatsinks) causing turbulence by nature, there
are heatsinks that are *designed* to promote turbulence and
heatsinks that are *advertized* to minimize turbulence. You
can find both sold on the 'Net.

*TimDaniels*