AMD GPU spikes to 100% all the time, 16inch MacBook Pro AMD Radeon Pro 5300M 4 GB

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Billy2025 Author

Level 1

8 points

AMD GPU spikes to 100% all the time, 16inch MacBook Pro AMD Radeon Pro 5300M 4 GB

My MBP 16 2019 fan is constantly running and the AMD Radeon Pro 5300M 4 GB is always pegged at 100%. Lot of times I type something and there is a huge lag which makes getting work done very difficult. This is a company issued Mac. Given I am at home working 99% of the time, it is TB3 attached to a Startech TB3DKDPMAW. I attached TB3 to a left side port, power to a right side port. Out of the Startech Dock, I attached GbE, TB3 to 1x Acer 38" monitor, DisplayPort to the other Acer 38" monitor.

I have seen other postings on this issue. I reset my the SMC, still happening. Any more ideas? Do I need an external eGPU to drive my external monitors?

MacBook Pro Retina

Posted on Feb 9, 2021 1:18 PM

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Answer 1

mario49

Community Specialist

Feb 11, 2021 1:10 PM in response to Billy2025

Hello Billy2025,

It sounds like you’re having an issue with your MacBook Pro fans running at full speed.

Here's a great article with steps to take to help out: If the fans in your Mac run at full speed when you turn it on

That should help to clear that up for you, but feel free to reach back out if you need further help.

Take care!

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Answer 2

Billy2025 Author

Level 1

8 points

Feb 15, 2021 12:28 PM in response to mario49

I have reset the SMC, still running at closer to 100% almost 100% of the time. Sometimes I cannot use it from the lag in keyboard response. It is sitting on a laptop cooling pad and all the vents are clear. I will be opening a case with my desktop support team this week. This appears to be an issue many others are having as well.

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AMD GPU spikes to 100% all the time, 16inch MacBook Pro AMD Radeon Pro 5300M 4 GB

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