Gotta admit, the fan on this i5 is weird. Here I am doing random stuff and the fans starts spinning up hard. I check Task Manager and only 4% cpu usage. Temps at 49C. So, no heat, no downloads, nothing taxing wifi and the fan spins up. Weird. I mean, as fans go it is about as quiet and unobtrusive as they come, but the erratic behavior is a quandary. I can live with it but can't help but be curious as to the cause and hope it doesn't point to some long term defect.