What do you consider load? I highly doubt you are only hitting 48C @ 1.57v with air cooling, unless your room is 40F. I'm hitting around 65C under full Orthos stress test load.k well i'm still working on mine since i just got it yesterday and i still haven't gotten an answer as to if I should read the core temps or the plain CPU temp, but without the suggested 'burn-in' time of the arctic silver 5 thermal paste the last OC i did was as follows:
Q6600 G0 @ 3960 MHz
440 FSB x9 =3960
with vCORE set to 1.57
temps at load were ~48C with the zalman 9700.