I bought a 1588 and decided to run it for a few days to make sure things are stable, everything is good and temperature is good, but i noticed that the fan that comes with the 1588 is humming really loud. I have the incubator in my office and I can hear it all the way across the house to my other room. I was wondering if this was normal. When I hear this humming in PC's, it usually means that the fan is going to die, I"m not sure if this is the same situation or if it just has such a high RPM that it was meant to be this loud. Anyone else with a 1588 experience this humming noise?