I heard "jet fan" when I was running the apple hardware test. So you've used it with no fan at all? What kind of load were you putting on the computer? Do you know what the CPU temp was?
I heard "jet fan" when I was running the apple hardware test. So you've used it with no fan at all? What kind of load were you putting on the computer? Do you know what the CPU temp was?
My observation has been that the fan is definitely on most of the time....but when I am doing some photoshop work and heavy statistical computations, it can get very loud...after about a hour of being truned on, the cpu gets pretty hot I guess....like right now it is 112F, was on for almost 2 hrs....and all I did was surf the web...... 🙄