I got a Jet 7 and it makes my PC work between 40 and 54(C) depending of the ambient temp, I live in a hot place so it's just normal temp. Sometimes it goes on 49-50 idle.
But well the question is one of the led's it has. Very annoying BTW. I've noticed that the front light (white) sometimes blinks faster than other times, not sure why though. Any one knows why would the led blink faster. Been looking all over the net and haven't gotten no info about it.