Brand new Mac Pro tower fan suddenly runs full-tilt

Brand new Mac Pro tower fan suddenly runs full-tilt My Quad-Core Mac Pro tower is two days old. Initially, I was impressed with how quiet it was compared to my older Macbook Pro. Then on day two, for some reason it started running very loudly. It's not just a "little" loud- my wife walked into the room and asked what the noise was.
Asked by: Guest \| Views: 304

Total answers/comments: 2

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Guest [Entry]

I would image the drive and take it back. Sounds like a problem in the fan control hardware and/or firmware. I have a few MacPros at work and they are quiet. The hardware test you're already doing is also a good idea.

Guest [Entry]

"It might be that the fan (or a bearing inside it) is broken, causing the extra noise?

Or perhaps the temperature sensor is faulty and things the CPU is much hotter than it actually is?

EDIT: Also, I've heard of faulty power supplies overheating the battery and laptop, might be worth checking too."