iknowhowtofixit :
liamwalby :
ShadyHamster :
The core temps are never accurate while the cpu is idle, you need to monitor the socket temp while idle, once under load the core temps become more accurate.
I suggest using AIDA64 to monitor your temps as it will show both the socket and the core temps.
You could also use something like HWmonitor or HWinfo to read both temps.
Failing that you could use AMD Overdrive to monitor the socket temp as well as thermal margin.
Is AMD overdrive part of the catalyst drivers? Because for some unknown reason it has vanished from my PC
Yes it is. Just reinstall from AMD.com
No, it's not, overdrive is a separate program from the catalyst drivers.
http://www.amd.com/en-us/markets/game/downloads/overdrive
In HWmonitor the temp listed under the motherboard tab is the socket temp, this sensor is relatively accurate while the pc is idle or under light loads (safe max temp: 70).
The 'package' temp listed under the cpu tab is/are the core temps, this is the temp to monitor once the cpu is under heavy load (safe max temp: 62).
If you don't under stand this then you have either never owned an AMD AM3+ cpu or you have never done any research about it.
The best and most accurate way to read temps is with overdrive and monitor your thermal margins.
Bios temp readings are always going to be different to what apps in windows detects due to limited power saving features being enabled.
Depending on what motherboard you have you maybe able to set up fan profiles in the bios/uefi, some motherboard may not support DC power fan control (PWM 4pin fans only).