What's the ambient in your room? Unless you are using some kind of exotic cooling the CPU must be above ambient temperature... 7 degrees seems way off. I would set the LCD Poster to report your temp from the BIOS options, and see what you get.
@EF: I also don't believe its 7c for the CPU. No exotic cooling for me. Just a TRUE120 and a 2000 rpm fan (plus an aircon at full blast). I would trust the reading of CoreTemp in this case. My concern is the NB. If I don't use PC Probe II, any alternate software we can us to read the temps? I got the temps from the BIOS showing in the LCD post but wanted a software as well (if there is one).

Cheers....