That seems kinda high. Maybe try lowering the voltages a little bit? My comp was hitting around there but i lowered the volts a little bit. Still, idk much but tht seems high, but not high enough to pose a danger for your chip.
65C being to hot or not really depends on what you are using to measure the temperature. If you are using TAT or some other program that reads the digital diodes inside each core then it's OK, if that is the case temperature however it's too hot and should be throttling.
I use Gigabyte easytune which comes bundle with gigabyte mobo to measure my CPU temp,and it shows my idle temp at 40*C.And once i ripped a DVD and went all the way to 47*C,then i opened my case and put it under ceiling fan and the temp fell down to 43*C.I think mine is getting this high because of my case coz mine case has only one exhaust fan at back and its quite small too.