Foxconn 925XE7AA-8EKRS2
 

Using an Asetek Waterchill system, with only a water block on the CPU, we
tested the overclocking potential of the Foxconn 925XE. We would have put
a block on the chipset as well, but with the new chipset HSF mounting
solution, we have no way of attaching the block to the northbridge
chipset. We managed to get our 3 GHz P4 running stable at 3.75 GHz, which
is a healthy 750 MHz overclock.

http://www.viperlair.com/reviews/cpu...n/intel/925xe/