For me, the drive is running 28-32 degrees in continuous operation at approx. (Lt.Everest) still have a Maxtor 250GB and 250GB built a Hitachi which are both well over 40 degrees. I can not agree with the previous speaker alo. You have to give enough cooling the housing of course. Particularly in continuous operation. Who the big fans are too loud then you should at least install a heatpipe cooling. The gibts for each plate. Unlike the previous speaker, I have to say rather that this is a plate with the least amount of heat, I've ever had.