SOLVED: EXHAUST and BOOSTB fans running at 0RPM, BOOSTA running at full speed - Mac Pro 2009-2012 - iFixit
![MacBook Pro, not charging, fan running at full speed, keyboard some keys not working Part 2. - YouTube MacBook Pro, not charging, fan running at full speed, keyboard some keys not working Part 2. - YouTube](https://i.ytimg.com/vi/oTrx2ulw7M8/sddefault.jpg)
MacBook Pro, not charging, fan running at full speed, keyboard some keys not working Part 2. - YouTube
![security - Why are CPU fans running on my MacBook Pro 15" full blast while my laptop has just booted up and waiting at the login screen? - Ask Different security - Why are CPU fans running on my MacBook Pro 15" full blast while my laptop has just booted up and waiting at the login screen? - Ask Different](https://i.stack.imgur.com/zYOPt.png)
security - Why are CPU fans running on my MacBook Pro 15" full blast while my laptop has just booted up and waiting at the login screen? - Ask Different
![Take Control Over Your MacBook's Fans for a Cooler, Smoother-Running Laptop « Mac OS Tips :: Gadget Hacks Take Control Over Your MacBook's Fans for a Cooler, Smoother-Running Laptop « Mac OS Tips :: Gadget Hacks](https://img.gadgethacks.com/img/16/30/63541898046682/0/take-control-over-your-macbooks-fans-for-cooler-smoother-running-laptop.1280x600.jpg)