OEMs hitting heat barriers with new PCs
It seems that the OEMs, faced with cutting edge, fledgling 1GHz CPUs and newer chipsets are running into heat problems with their systems. They've faced similar problems when moving complex CPUs like the Intel PII into notebook environments, and they have tended to resort to expensive, exotic solutions. On the desktop, however, their challenge is to do the same inexpensively.
Part of the solution to this thermal problem has been fans, but these hot systems would violate vendor standards for sound levels if they simply used more and/or stronger fans. Possible thermal solutions may come from CPU vendors integrating some hardware techniques from their mobile power/heat saving designs and/or new fan and other cooling solutions (like water cooling). It's the same type of problem performance-loving, overclocking end-users have faced for years now.