Kernel_task using loads of CPU
A friend tried to update their Mac to Sierra but the update failed part way through. Now the computer she tried the install on is running its fans constantly and the CPU usage is bouncing between 80%-200% almost entirely due to kernel_task.
I've tried reseatting all the connectors on the board as well as an SMC reset and PRAM reset. I've also cleaned out the fans. Online people are suggesting messing around with system files, I'd prefer to avoid that solution if possible.
Computer Specs: http://www.everymac.com/systems/apple/ma...