3 MBP fans running well over designed speed.
Hi,
Recently the fans in my MBP have randomly started spinning up to like 10000rpm, way past what the fan was designed for. Everytime it happened I shut down the computer to avoid damage, and when I turned It back on again it would be fine. It happened again today and this time, it's persistent. On boot camp, the computer runs really hot and this only happens while doing something such as rendering.
Is this a faulty fan, or could this have something to do with the logic board sending way too much power to it (I find that unlikely because it always fixed itself). I already tried an SMC reset, and opened the laptop to confirm it was indeed the fan.
Here's a video of the issue: https://youtu.be/ArGPcoQJkMQ
It's ONLY the right side fan.
Thanks,
John.
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You'll need to get some deeper diagnostics to figure this out. I would start off running the onboard diagnostics to see if something pops up. Press and hod theD key when booting up.
Reference: Mac startup key combinations
If that didn't give you a clue give this app a try: TG Pro
Let us know what the error message in diagnostics. If you end up using TG Pro paste a screenshot of the main window (make sure you expand it so all the sensors are visible)
Adding images to an existing question
из Dan