Codeline

macrumors member
Original poster
Jan 2, 2020
67
20
I have no idea if this is normal so thought I would ask the educated in here.
The CPU core 8 is rather hot at 129º.

I thought the cores would all be roughly the same temperature give or take a few degrees but sitting this high.

is this ok and normal?
 

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Codeline

macrumors member
Original poster
Jan 2, 2020
67
20
It’s a HWSensors monitor, i have tried it on a 15’’ 2015 MBP and its running as i would expect.
On a 2019 15’’ its the same 129º...... strange! Must be software.
Is the istat a good monitor app?
 

seangrimes590

macrumors member
Jun 21, 2012
73
79
Villanova, PA
Definitely a bug, Intel would force a shutdown if a core was really at 130 degree Celsius.

You can get detailed CPU (and other hardware) usage with the sudo powermetrics command. As it requires root permission I recommend looking it up before running it so you know for yourself you're not doing anything you wouldn't want to do. I don't believe, if I remember correctly, that it gives you individual core temperature but it does give you per-core load and per-core interrupts. If you had some core that was much hotter than the others you would see that reflected in the load information.
 
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simonmet

Cancelled
Sep 9, 2012
2,666
3,659
Sydney
It’s a HWSensors monitor, i have tried it on a 15’’ 2015 MBP and its running as i would expect.
On a 2019 15’’ its the same 129º...... strange! Must be software.
Is the istat a good monitor app?

It’s one of the most popular for macOS and is worth checking out, yes. As its name implies: it runs in the menu bar. I disliked some aspects of the UI a few years ago, but maybe they’ve fixed that now?
 
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leman

macrumors G5
Oct 14, 2008
13,817
9,586
That is an impossible value and will be either a software bug or a defective hardware sensor.
 

Codeline

macrumors member
Original poster
Jan 2, 2020
67
20
I found the problem with the crazy Core 8 temperature.... I downloaded istat, great monitor.
Reason for the high temp........I only have a 6 core mac.......

well at least i owned up to my stupidity
 
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