CPU throttling despite low temperature

[scube]

Hi

I used to have cpu throttling a couple of months now but I managed to prevent it having an active ventilation system next to my mbp. But now I have much more throttling over a longer period of time despite my cpu temperature is a little over 60° celsius.

Does anyone of you have a hint on what could be wrong with my mbp?

 

[Newtons Apple]

Looks to me like you MBP is at idle. The CPU should not be running at it’s top speed when it is not doing anything.

 

[mac_4eva]

What is the CPU utilization across the duration of the graph? It looks like the CPU is not being used at all. If so, this is normal behavior. CPUs run at far lower clocks for power conservation when possible. The following are readings when using a single tab in Safari and not doing any activity. The spike at the end occurs when I decided to take a screenshot.

 

[scube]

Looks to me like you MBP is at idle. The CPU should not be running at it’s top speed when it is not doing anything.

no it was not idle. PHPStorm did a reindex at that time (probably causing the throttling). Usually this goes with 400% cpu consumed by phpstorm.

 

[Newtons Apple]

no it was not idle. PHPStorm did a reindex at that time (probably causing the throttling). Usually this goes with 400% cpu consumed by phpstorm.

Sorry but the Intel Power Gadget is indicating your CPU is at near idle.

 

[scube]

That is strange. Could that be bc it was throttling at that time?

 

[Yakibomb]

no it was not idle. PHPStorm did a reindex at that time (probably causing the throttling). Usually this goes with 400% cpu consumed by phpstorm.

Try pushing the machine a little harder, with something like Cinebench, because PHPStorm is barely pushing it past idle from your screenshots.

 

[Janichsan]

That is strange. Could that be bc it was throttling at that time?

No. Utilisation is not dependent on the current working frequency.

 

[leman]

This looks like power throttling (what was happening to the new 2018 models). Seems like your power system is overheating and sending an emergency throttle signal the CPU, which drops it to lowest frequency.

What laptop do you use?
[doublepost=1533548952][/doublepost]

Sorry but the Intel Power Gadget is indicating your CPU is at near idle.

It doesn't actually, since he didn't post the CPU utilisation graph.

 

[Newtons Apple]

That is strange. Could that be bc it was throttling at that time?

The apps does not show it is throttling, it shows the CPU is not doing much of anything. If throttling the number would be MUCH higher. What is it showing is your CPU is simply at rest.

 

[scube]

during cinebench:


after cinebench:


Does look like to me that it would not be a big problem going on a higher frequency and allow temperature to 80/90°?

And my power information:


MacBook Pro (Retina, 15-inch, Late 2013)

 

[mac_4eva]

@scube what version of macOS and Intel Power Gadget are you using? Update your Intel Power Gadget - looks like an older version. For good measure, consider resetting NVRAM & SMC as well. Also share your Cinebench CPU score for comparison.

 

[mr.anthonyramos]

during cinebench:
View attachment 774600

after cinebench:
View attachment 774601

Does look like to me that it would not be a big problem going on a higher frequency and allow temperature to 80/90°?

And my power information:
View attachment 774602

MacBook Pro (Retina, 15-inch, Late 2013)

You're using an outdated version of the Intel Gadget. Update it.

 

[scube]

I updated my Intel Gadget tool and took now a real-world example of my current work. I'll do the NVRAM & SMC resetting later.

But still the throttle at 70° celsius seems to be a bit to much, isn't it?



and another one:

 

[Janichsan]

I updated my Intel Gadget tool and took now a real-world example of my current work. I'll do the NVRAM & SMC resetting later.

But still the throttle at 70° celsius seems to be a bit to much, isn't it?

View attachment 774629

In that first example, the CPU doesn't throttle because it's at 70 °C, it's at 70 °C because it's throttled. You'll notice that the temperature is closer to 90 °C before the throttling.

The second example is less clear cut.

 

[leman]

As I wrote before, this is a pattern consistent with power throttling.

 

[scube]

As I wrote before, this is a pattern consistent with power throttling.

Do you mean with power throttling that my battery is in a bad shape and a replacement will bring me more cpu power? Or do I misunderstand you?

 

[leman]

Do you mean with power throttling that my battery is in a bad shape and a replacement will bring me more cpu power? Or do I misunderstand you?

I should have said "VRM throttling", not power throttling, sorry. See my earlier post:

This looks like power throttling (what was happening to the new 2018 models). Seems like your power system is overheating and sending an emergency throttle signal the CPU, which drops it to lowest frequency.

Or maybe I am wrong and the issue is something else entirely. At any rate, your system is behaving pretty much abnormally in those later graphs. CPU temperature and frequencies should be higher. If resetting SCM doesn't help, I'd bet on a hardware issue somewhere.

 

[sukh7]

I’m having the same issue with my Macbook Air 2017. I tried many things and never found anything conclusive. So far i can say that the issue is with power supply. My CPU goes to 0.50 GHz and if there is no task running in background and let the pc stay idle for few minute, it is back to full potential. A slight stress make CPU throttle. From my experience, it is an hardware issue.
- Notice the power supply rising and CPU frequency going down at the same time.
- When CPU is running fine, the power usage is also going low.