<< Depends on whether its a t-bird/athlon XP. For a t-bird, the socket-thermistor *can closesly match a side-thermistor, both of whcih are still below full core temp.
For an XP chip, its probably ~5C below side-thermistor temp. >>
IC. So a temperature of around 43 celcius @ full load is ok for a 1600+?