I just upgraded my computer with an Abit IS7-E, P4 2.6C w/ retail heatsink, and 2 x 256MB Buffalo PC3200 (Winbond CH5). I have it Prime95 stable at 3.0 GHz (231x13.0) with the memory at 5:4 (185MHz at 2.5,3,3,7). Temps are same as with stock speed (37 idle, 55 at full load) - seems high to me...