I'm using the P4PE/L and I'm very pleased with it, it's stable, doesn't have cold boot issues (on the rare occassions it's off for any length of time) and the memory bandwidth is the best of any board I've ever used. Currently running a 2.4B@2.9GHZ, 1.625v, 161fsb, 403DDR and except for the on-board sound copping out at FSBs over 150mhz it's perfect.