Thunderbolt Display 27" loud fan noise on start up for 20 minutes
When I turn on my (Mid 2012) Mac Pro, my 27" Thunderbold display fans makes a loud noise that last for 20 minutes or more.
It really sounds like they are going 100%.
The fans eventually quiet down to a reasonable level.
Is there anything I can do?
Mac Pro, OS X Mavericks (10.9.2)