when im at idle it goes from 36-41 degree C, however when im playing minecraft at full settings (havnt tried other games but will do in the future havnt got any other games right now) it goes to 3.2 ghz and also it goes to 1.4V and 53 degree C
Of course if you ran at default all Cstase still auto except vcore ( you change it). Many overclock for stability change Cstate from auto to disabled ( C1E, cool n quite) exsample : in cpu-z idle show 1.3v when full load still 1.3v.
have been running my Phenom II 955BE C2 for near 2 years now and always change CPU voltage to recommended 1.25v when at stock settings and has always run perfect. disable Cool & Quiet and set your own CPU Steps using K10STAT in Windows. will keep it cooler and expand life of CPU. using the stock heatsink\fan with the 955 I would run up to 55°C at load and it' still fine, even overclocked.
just look up K10STAT and you will find directions for use.