MacBook Pro 2015 Temperature Problem

developeralioz · Nov 16, 2020

I installed a 500GB Samsung 970 Evo on my MacBook Pro Early 2015 13 inch device. Heating problems started with my device. The computer reaches 100 degrees in a small operation. It was not like that before. For example, when I wanted to open Safari, my device was going from 50 degrees to 75 degrees. Now it's reaching 100 degrees. This is a very simple process. How can it be 100 degrees when opening Safari? The system draws 8-9W of idle power. Previously this was around 4W. It draws power incredibly. This naturally causes warming.

On the other hand, the temperature of 97 degrees drops back to 60 degrees within a few seconds (even before the fan starts to spin).
When I try to open a heavier application than Safari it reaches 105 degrees.

Do not say change the thermal paste. Why wasn't it reaching these temperatures in the previous SSD?

The system consumes 23.91W in total and only 6.23 of it belongs to the processor. Meanwhile, the speaker is off, the keyboard light is off, the screen brightness is 25 percent. Who is consuming this much power ...

mo5214 · Nov 16, 2020

Maybe check power sensors. Do you have NVMeFix installed? (if not, try that first). Also check NVMe upgrade thread on this forum for info. It should have all information on how NVMe drives tax CPU more.

But mainly, the issues should be lessened after you have NVMeFix working.

But in all fairness. temps jumping up that high that quickly, means thermal paste could be degraded as well. (normally it wouldn't jump that high that quick)

developeralioz · Nov 17, 2020

mo5214 said:
Maybe check power sensors. Do you have NVMeFix installed? (if not, try that first). Also check NVMe upgrade thread on this forum for info. It should have all information on how NVMe drives tax CPU more.

But mainly, the issues should be lessened after you have NVMeFix working.

But in all fairness. temps jumping up that high that quickly, means thermal paste could be degraded as well. (normally it wouldn't jump that high that quick)

NVMeFix is already installed.

I changed the thermal paste just before installing the SSD. I used Arctic MX-4.

Installed the original Apple SSD and shot the video below. Temperatures are normal on the original Apple SSD. But when I wear Samsung, it goes crazy. Moreover, it does this even though NVMeFix is installed.

mo5214 · Nov 17, 2020

developeralioz said:
NVMeFix is already installed.

I changed the thermal paste just before installing the SSD. I used Arctic MX-4.

Installed the original Apple SSD and shot the video below. Temperatures are normal on the original Apple SSD. But when I wear Samsung, it goes crazy. Moreover, it does this even though NVMeFix is installed.

I think that the issue is two-fold. NVMe drives taxes CPU more, and CPU loading heating up too quickly. I find it irregular that the temps rise that quickly (I just recently re-pasted my friend's 2015 13" and retrofitted it using 970 Evo Plus 1TB and it tops out in the 90Cs during benching, 100% CPU load) What is your NGFF adapter type? (Sintech long? Sintech short?, others?)

developeralioz · Nov 17, 2020

mo5214 said:
I think that the issue is two-fold. NVMe drives taxes CPU more, and CPU loading heating up too quickly. I find it irregular that the temps rise that quickly (I just recently re-pasted my friend's 2015 13" and retrofitted it using 970 Evo Plus 1TB and it tops out in the 90Cs during benching, 100% CPU load) What is your NGFF adapter type? (Sintech long? Sintech short?, others?)

My computer reaches 90 degrees when turned on. It drops to 55-60 degrees in a minute. I click on safari. It is 100 degrees. Then it drops again to 55 - 60 degrees. I click on Youtube, it is repeated in the same way.

I'm doing stress testing with Intel Power Management. The fan is 3000 RPM and the processor temperature is 100 degrees. If the fan runs full (6199 RPM) the processor drops to 84 degrees. Thermal paste does its job well. Meanwhile, thermal throttling does not occur. The processor continues to run at 3.10 gHz.

The only problem with my computer is that the temperatures get too high when I'm launching an application. I showed these problems in the video.

This is the SSD adapter I use: M.2 NVME SSD Convert Adapter Card for MacBook Air Pro Retina 2013-2017 NVME/AHCI SSD Upgraded Kit For A1465 A1466 A1398 A1502

Sintech is too expensive. It comes to my country for $ 30 with shipping and tax. That's why I bought it on Aliexpress. Is this adapter responsible for all this heating problem? I do not think so.

mo5214 · Nov 17, 2020

developeralioz said:
My computer reaches 90 degrees when turned on. It drops to 55-60 degrees in a minute. I click on safari. It is 100 degrees. Then it drops again to 55 - 60 degrees. I click on Youtube, it is repeated in the same way.

I'm doing stress testing with Intel Power Management. The fan is 3000 RPM and the processor temperature is 100 degrees. If the fan runs full (6199 RPM) the processor drops to 84 degrees. Thermal paste does its job well. Meanwhile, thermal throttling does not occur. The processor continues to run at 3.10 gHz.

The only problem with my computer is that the temperatures get too high when I'm launching an application. I showed these problems in the video.

This is the SSD adapter I use: M.2 NVME SSD Convert Adapter Card for MacBook Air Pro Retina 2013-2017 NVME/AHCI SSD Upgraded Kit For A1465 A1466 A1398 A1502

Sintech is too expensive. It comes to my country for $ 30 with shipping and tax. That's why I bought it on Aliexpress. Is this adapter responsible for all this heating problem? I do not think so.

Read the information in the NVMe thread here in the Forum. There it mentions that some adapters might introduces interferences. (Tho I'm not sure that this is the case here, lest u have instability issues, and reduced transfer speed) I used the sintech Short Adapter on my friend's 13", and I'm pretty sure we don't have this problem (tho I could be wrong).

An alternative theory is that due to how the fan curves were adjusted to turn off fans unless temps reached a certain thresholds in BootRom of 2015 13" Pros and Air models. It is possible that this is the case. (But If you said that it was fine before the SSD swap...)

Please check in iStat Menu what App is consuming CPU, and is triggering the turbo boost.
Also, please double check the bootROM version.

developeralioz · Nov 17, 2020

My bootROM version: 424.0

I have never touched my Mac's fan settings. Since the processor did not get very hot while in the Apple SSD, the fans did not spin much.

There is no problem with my transfer speed. Write: 1371 MB/s, Read: 1485 MB/s

I recorded how much the applications used the processor. They use it a lot. I could not understand why this is happening. Safari opened with a single click on the Apple SSD and did not burden the processor. But now it takes a few seconds for Safari to open on a Samsung SSD. And as you can see in the video it consumes a lot of resources. The problem is not just in Safari. Safari is just one example of this.

developeralioz · Nov 18, 2020

Can you explain in detail how to install NvmeFix?

I reinstalled macOS. I want to install NvmeFix from scratch.

@mo5214

mo5214 · Nov 18, 2020

You'd need Lilu, and NVMeFix kexts installed in /Library/Extensions.
And unless you have SIP disabled (or just csrutil enable --without kext)
with boot-args debug=0x144 enabled OR you sign the kexts in some way (note that you can't really self-sign kexts starting in Yosemite) it won't load.

developeralioz · Nov 18, 2020

mo5214 said:
You'd need Lilu, and NVMeFix kexts installed in /Library/Extensions.
And unless you have SIP disabled (or just csrutil enable --without kext)
with boot-args debug=0x144 enabled OR you sign the kexts in some way (note that you can't really self-sign kexts starting in Yosemite) it won't load.

I will try it.

developeralioz · Nov 19, 2020

boot-args debug=0x144 this command not found by terminal.

developeralioz · Nov 19, 2020

mo5214 said:
You'd need Lilu, and NVMeFix kexts installed in /Library/Extensions.
And unless you have SIP disabled (or just csrutil enable --without kext)
with boot-args debug=0x144 enabled OR you sign the kexts in some way (note that you can't really self-sign kexts starting in Yosemite) it won't load.

boot-args debug=0x144 this command not found by terminal.
@mo5214

mo5214 · Nov 19, 2020

developeralioz said:
boot-args debug=0x144 this command not found by terminal.
@mo5214

Its sudo nvram boot-args=“debug=0x144”

developeralioz · Nov 20, 2020

I have already successfully installed NVMeFix. In fact, warming has nothing to do with NVMeFix. Let me prove that to you.

The real problem seems to be with Intel GPU Frequency. In the 970 EVO, the GPU frequency does not go below 500 MHz when the system is idle. But in the original Apple SSD, the GPU frequency is between 0-100 MHz when the system is idle.

What does SSD have to do with GPU frequency? How can it affect him?

The system is idle in the pictures I have taken.

Apple SSD:

Samsung 970 EVO:

@mo5214

mo5214 · Nov 20, 2020

Show the GPU load plz. It should be in the CPU Section. If not. Install Intel Power Gadget. Or just open Activity Monitor and check GPU activity Window. There should be an option to view what's triggering your iGPU.

developeralioz · Nov 20, 2020

mo5214 said:
Show the GPU load plz. It should be in the CPU Section. If not. Install Intel Power Gadget. Or just open Activity Monitor and check GPU activity Window. There should be an option to view what's triggering your iGPU.

There is nothing using the GPU.

How does SSD affect GPU frequency? I do not understand anything from this situation.

mo5214 · Nov 21, 2020

developeralioz said:
There is nothing using the GPU.

How does SSD affect GPU frequency? I do not understand anything from this situation.

View attachment 1675483

From here:

developeralioz said:
The real problem seems to be with Intel GPU Frequency. In the 970 EVO, the GPU frequency does not go below 500 MHz when the system is idle. But in the original Apple SSD, the GPU frequency is between 0-100 MHz when the system is idle.

What does SSD have to do with GPU frequency?

I'm trying out to see the if there i anything causing your GPU to run higher than It supposed to.

The first pict is the how you access GPU hist from activity monitor.
2nd pict is my temps on my travel mac (MacBook Air 2015" 11". It has i7-5650u CPU. w/ HD6000 graphics). It is running w/ Samsung 970 Pro 512GB NVMe
3rd pict was peak SSD Amperage. Currently it displays 0.0A used.
4th pict was my iGPU usage over 30 day period, peaking at 400 mhz. Currently it never goes above 350 mhz, which is normal. (It is driving your screen after all)
5 an 6th display how you access the graphic loads using istat menu.

Even with that speed, my system is not consuming insane power averaging 3-5W and peaking at 20W

developeralioz · Nov 21, 2020

mo5214 said:
From here:

I'm trying out to see the if there i anything causing your GPU to run higher than It supposed to.

The first pict is the how you access GPU hist from activity monitor.
2nd pict is my temps on my travel mac (MacBook Air 2015" 11". It has i7-5650u CPU. w/ HD6000 graphics). It is running w/ Samsung 970 Pro 512GB NVMe
3rd pict was peak SSD Amperage. Currently it displays 0.0A used.
4th pict was my iGPU usage over 30 day period, peaking at 400 mhz. Currently it never goes above 350 mhz, which is normal. (It is driving your screen after all)
5 an 6th display how you access the graphic loads using istat menu.

Even with that speed, my system is not consuming insane power averaging 3-5W and peaking at 20W

Thanks for your message. Your values are normal. Your power values are very good. I want these values too

Are you using a Sintech adapter? I have the Aliexpress adapter. Could the problem be caused by this?

Mine rarely goes down to 400 Mhz. It usually stands at 500 MHz and above.

mo5214 · Nov 21, 2020

developeralioz said:
Thanks for your message. Your values are normal. Your power values are very good. I want these values too

Are you using a Sintech adapter? I have the Aliexpress adapter. Could the problem be caused by this?

Mine rarely goes down to 400 Mhz. It usually stands at 500 MHz and above.

View attachment 1675902

You mind adding the power sensor information in istat menu and show me your cpu, gpu and system total power please?

i see that it averages about 500mhz even without load. But I don’t think its what hogging your power.

if push cones to shove we can always undervolt it to get power consumption under control

developeralioz · Nov 21, 2020

mo5214 said:
You mind adding the power sensor information in istat menu and show me your cpu, gpu and system total power please?

i see that it averages about 500mhz even without load. But I don’t think its what hogging your power.

if push cones to shove we can always undervolt it to get power consumption under control

iGPU: