16C? Thats a little bit less than 61 degrees? Unless you live here in Michigan, AND your computer is outside, I don't see how your temperature is that low. If room temperature was 75F (24C) the CPU would HAVE to be at least that temperature, even when it's turned off... but... if you say it's 16C I'll take your word for it, but I wouldn't trust that number unless you were in a rediculously cold room.