I see the cores are all clocked up and running so I have to write it would be proper for the fan to run at near its top speed.
All it would take is some app to be running to cause this but the clues so far only tell me that I would expect the fan to do this.
Maybe you need to look deeper at what's running?
Bob
So my Asus U38N has a fan that is running at full speed for a few days. It's located below the upper right corner of the keyboard, below Esc and numerical keys. It runs on Win 8.1 64. I checked temperatures with OpenHardwareManager and they're ok, also the CPU, RAM and harddisk usage is normal. I attach a screenshot. Anyone has an idea what can be wrong?
http://s21.postimg.org/6csaxem3r/OHM.jpg

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