[SOLVED] the fan running at high speeds, kernel task taking up 500% cpu (high cpu) on macbook These are my problem on macbook pro 15″, mid 2015: – macOS running very slow – fan running high – kernel_task taking up to 500% CPU And I fixed my macbook as following steps: Step 1: Disable SIP Enter recovery mode – Shutdown your macbook – Press keys: Command + R – Press power button… Read More