"the necessity for a wind hood over the processor is an abomination."
Nearly every Pentium 4 system shipped by Dell has just such a "hood" or plenum. And Dell has probably sold tens of millions of these in the past 3 years. The plenum, as implemented by Dell, is straightforward and effective - it exhausts the heat from the CPU through the plenum duct to a vent in the case at the other end of the plenum, removing the heat from the chassis. The alternative with a simple fan/heat sink on top the CPU is to just blow the hot air around inside the chassis and hope that another fan manages to exhaust some of the heat.
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