I'm running a desktop in a dusty environment. It's a pain to open it up and blow the dust out out of the innards, so I'd like to be able to see when it is heating up and it's necessary to clean it. So I got Speccy, and it tells me that that the average CPU temperature is 40 degrees C at most. This doesn't seem awfully hot to me, but can anyone tell me when to start worrying? The scale of the speccy display ... I will guess that the scale is adjusted to whatever the current temperature is, and so I should _not_ take it that the top of the scale is the danger point. Is this correct?