Air cooled Presler XE benchmarked at 4.27 GHz

SINCE GETTING my hands on the 3.46 GHz Presler XE chip late last month, I was somewhat surprised at the relative ease this MCM (multi-chip module)-like two-chip CPU device was overclocking.
That was the case even with the mediocre stock heat sink & fan unit that comes with the D975XBX mainboard. So, before going into the wet world of water coolers, I decided to max it out on the thin air alone, just with a better fan - the wacky Zalman 9500 LED monster with its vertical fan surrounded by a dense ring of sharp, thin copper fins.