Well, the thing is:
BIOS shows realistic temps (can't remember, something around 35 at idle. At least did, before installing the new HSF) Speedfan and all other software I've used show 2-15 C, depending if I look at the core or CPU temps, and depending on current and recent load.
I'll try AMD overdrive.
BTW, pics of the dual core center are attached.
Update: I can't use AMD overdrive. It won't start, saying: "AMD OverDrive cannot detect AMD 7-series chipset on this computer."

Is my mobo crap? Or am I using the wrong version?
EDIT2: Checked to be sure, BIOS showed 18-19 C on CPU, system temp 32 C. Now I'm wondering? Is that the real temp? Or is my board a total mess? Except for working perfectly on other areas