Download Firmware Apple Mac Pro System Management Control 1.1

Apple released new firmware a few days ago released for the Mac Pro computers. The firmware makes some changes in the System Management Controlchip, which controls the fans, the Sudden Motion Sensor and the power button, among other things. The developers have changed the behavior of the fans in version 1.1:

About Mac Pro SMC Firmware Update 1.1
The SMC Firmware Update adjusts fan behavior in the Mac Pro.

After this update has completed successfully, your SMC Version will be:
1.7f10 (Mac Pro)
1.15f3 (Mac Pro 8 core)