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Questions tagged [temperature]

Using Apple products in wet, dry, hot, low- or high-pressure environments. Things like water-resistance, waterproof specifications, dust and other environmental considerations.

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Thunderbolt monitor screen going dark

I am running a 2018 Mac Mini with a 27" Thunderbolt display as the main and a 27" Benq as a 2nd (extended) display. I'm using an Apple TB3 to TB2 adaptor for the Thunderbolt and connecting ...
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kernel_task slowing down on Intel-based MacBook Pro

I have a 2020 MacBook Pro 16", the last of the Intel based Macs. Just in the last couple of weeks it has been slowing down due the kernel_task process going up to 1000% CPU usage. I have done a ...
Matt's user avatar
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How to handle a kernel_task going wild, wrongly trying to cool my Mac?

I have a very annoying bug on my iMac 2019 (27", Retina 5K, i9, 8cores, Monterey, Radeon Pro Vega 8 Gb, 64GB Ram). It's likely caused by a hardware problem but also triggers a software bug I ...
Hugues's user avatar
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How can I see whether my iPhone is throttling the CPU or some other resources due to excessive temperature?

I have an iPhone 12 mini, which runs iOS 15. How can I see whether my iPhone is throttling the CPU or some other resources due to excessive temperature?
Franck Dernoncourt's user avatar
1 vote
2 answers
178 views

kernel_task shutting down network when CPU not overheating

[MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports), 2.3 GHz Quad-Core Intel Core i7, 16 GB RAM, running Monterey 12.6.4] kernel_task consumes inordinate CPU periodically--around 100+% according to ...
Name Withheld's user avatar
1 vote
0 answers
145 views

MacBook Pro 16 2019 i7 - CPU throttling

My MacBook Pro starts to throttle its CPU to 0.8 - 1GHz over time, even when watching 2k youtube videos, which of course is not a normal behaviour. Here are some details about my issue. First, pmset: ...
Bartosz Brożek's user avatar
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Will my macbook start downgrading my performance at 67 degrees celcius?

My MacBook Pro has been suddenly behaving suspiciously slow -- the temperature censors hover around 67 degrees Celsius. Does the kernel task (or another mechanism) start throttling performance at ...
user1172468's user avatar
3 votes
2 answers
678 views

How hot should a Mac power adapter get?

I've borrowed a 2015 MacBook Retina to process Go Pro 360 videos because there's no Linux software to do this. The power supply gets excessively hot and I feel this is not normal. When the laptop is ...
Criggie's user avatar
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479 views

High CPU temperatures while using iCloud for Windows

I hope you don't mind the Windows related question. I am trying to run iCloud for Windows on my PC (running Windows 11 Pro) but when I turn on iCloud Drive, my CPU temps jump by about 15-20 deg C. ...
abell's user avatar
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My MacBook Pro 2018 (Intel) reaches 100 degrees Celsius very often [duplicate]

I am curious if this is ok. It reaches this temperature very often when some intensive tasks are running. Sometimes it reaches this temperature when application is starting. Fan starts to spin up to ...
userx01233433's user avatar
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How to see the temperatures of the parts of my MacBook on Monterey? [duplicate]

How can I see the temperatures recorded by every sensor inside of my MacBook 2015? Back in 2017 it apparently wasn't possible without external apps (https://apple.stackexchange.com/a/291511/150109), ...
minseong's user avatar
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CPU throttled to 0.78 GHz when using MacsFanControl on Windows

Sometimes I need to run Windows via Bootcamp on my MBP 16". In Windows, the fans of the notebook always spin at maximum speed, so I tried regulate them using "MacsFanControl". When ...
Gene's user avatar
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2 votes
1 answer
938 views

Throttle CPU to reduce fan usage on MBP

I am using an MBP (late '19, 8-Core i9, macOS 12.5). On medium and heavy usage, the fans kick in, as expected. However, I sometimes want to use the MBP casually and would be willing to throttle down ...
Felix's user avatar
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1 answer
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2017 MBP, no dust, hot enough to fry an egg

I have a 2017 MBP which works reasonably well, but it seems to have a heating issue. I've opened it and found there was very little dust inside, but I cleaned out whatever little bit there was. Now my ...
Incognito's user avatar
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Mac Mini 2018 (Intel) has CPU frequency being 0.8GHz from time to time - what should I do?

I have a Mac Mini 2018 with Intel CPU, but recently it starts to lock its CPU frequency. From time to time (e.g. several times a day), it becomes 0.8GHz for about 5 minute, and a few minutes of ~1GHz, ...
ch271828n's user avatar
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Should my CPU load be that high?

I have a mid-2009 13" core 2 Duo MacBook Pro running High Sierra w/ upgraded 8 Gb RAM. On Activity Monitor I usually get 20-40% 'idle CPU' with only Finder, Safari (3 tabs) and Activity Monitor ...
IanMac's user avatar
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5 votes
1 answer
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Mac Mini's fan is not speeding up when it's under pressure

I have a Mac Mini 2020 with M1 chip. Fan is always working around 1700 rpm no matter the CPU temperature. Even if CPU temperature is 80 degree celsius, it works at the same speed as if it was only ...
Eray's user avatar
  • 261
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1 answer
103 views

How to investigate cooling resp. kernel_task problem

On my macbook pro 2019 I'm running into this issue, where the infamous kernel_task starts blocking my computer after a couple of hours. I know that many people are experiencing similar issues for many ...
Giraphi's user avatar
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1 answer
935 views

What's the normal rpm and sensors temperature for Macbook pro 2019

I have a Macbook Pro 2019 (Core i7 16GB 16inch) and for normal usage with Google Chrome and VSCode for simple projects, it shows this temperature and fan speed Is it normal? Its fan are always on and ...
Komail Fayazbakhsh's user avatar
18 votes
1 answer
30k views

How can I get the CPU temperature from the command line on Apple Silicon M1

I wanted to monitor handy temperature data like I did dozen times on Linux machines. No problem! I found a beautiful one-liner: sudo powermetrics --samplers smc | grep -i "CPU die temperature&...
lucidyan's user avatar
  • 299
1 vote
1 answer
2k views

High kernel_task CPU usage problem

I have an old MacBook Air 13" from 2013. It has been working flawlessly up to maybe 6 months ago, where it started being insanely slow. I have identified the cause to be the dreaded kernel_task, ...
Bastian Borum Andersen's user avatar
2 votes
0 answers
1k views

MacBook Air with M1 chip getting hot when I am opening Visual Studio Code, Terminal, Google Chrome

I am a full-stack web developer. I am using MacBook Air with an M1 chip. Last few days I am seeing the laptop getting very hot when I am opening Google Chrome, Visual Studio Code, and Terminal ...
Al Imran's user avatar
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1k views

Terminal commands, where does the cpu temperature difference come from?

What's the correct way to get current CPU temperature? And why different programs return different CPU temperatures, for example, one command returns 70C, the other 52C sudo powermetrics -i 200 --...
Gintaras's user avatar
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1 vote
1 answer
1k views

Mac fan always running, even after SMC reset

Ive got a 2017 15" MBP with an i7 CPU running Big Sur. The mac's fan has been running very loud for a few weeks now, i googled it and did an SMC reset, but this has not solved the issue. The fan ...
sam's user avatar
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1 answer
152 views

Do late-2015 27" 5K iMacs have an AC/DC T2 secondary heatsink thermal sensor?

Since yesterday, on my iMac (A1419 EMC 2806) the fan is maxing out from power up, regardless of safe mode, recovery mode, or booting into Windows (via Boot Camp), diagnostics return PFM006 (SMC error) ...
cirko's user avatar
  • 115
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2 answers
819 views

MacBook Pro (16-inch, 2019) hot & noisy fan when second monitor plugged via USB-C

I have a problem in over heating and noisy fan when I have the second monitor plugged via USB-C (I have tried different types of external monitor, and the problem does happen with every monitor). I ...
nkint's user avatar
  • 571
0 votes
3 answers
208 views

Macbook went over 95C

My MacBook just went over 95 °C/100 °C. I am scared that it might break my MacBook. I cleaned the MacBook screen and stuff but every time I do something on it, it instantly heats up very high. Should ...
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406 views

Which CPU temperature should I look at to monitor thermal throttling?

I'm using iStat Menus to display temperature readings from multiple sensors. I want to keep an eye on the CPU temperature to see if the cores are close to their thermal throttling threshold, but there ...
nalzok's user avatar
  • 609
1 vote
1 answer
185 views

Can you overcool an iPhone?

My iPhone sits in my car on a holder that clips into one of the air vents. In the winter, I don't want hot air from the heater to make my iPhone hotter, so I close that single vent. In the summer, I ...
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1 answer
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Is it possible to check the current speed of the fan on a 2016-2017 MacBook Pro? Is "resetting the SMC of your Mac" at least a safe thing to try?

I'm literally asking for a friend, who has a MacBook Pro 2016-2017 with no touch bar. (Big Sur 11.4, updated about 2 months ago). They report that recently (noticed within the last week) when the ...
uhoh's user avatar
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1 vote
2 answers
788 views

Mac mini fan never surpasses 7%, even while stress testing

I have a 2014 Mac mini with an Intel Core i5 processor. I noticed that no matter how much I used it, the fans barely ramped up. Using iStat Menus I noticed that it would usually stay around its base ...
Oion Akif's user avatar
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0 votes
1 answer
429 views

Thermal throttling after Big Sur update

My 2015 i7 MacBookPro started to thermal throttle after the update to Big Sur: in previous system, the Mac went up to 90°C degrees before slowing down. And it would not thermal throttle at all. The ...
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0 votes
1 answer
2k views

kernel_task eating 1000% of my CPU regardless of the CPU being at 56-58 degrees

I'm currently struggling with kernel task on my 1 year old Macbook Pro 16" 2019. Basically I'm currently using an external monitor which is connected to my macbook via a usbc to displayport cable ...
Beter's user avatar
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2 votes
0 answers
68 views

How do I start my rMBP fans BEFORE login?

My rMBP late 2013, 15 inch, running Mojave 10.14, has some issues with the graphics card overheating. Once I'm logged in and have Macs Fan Control running, it's fairly stable unless I run some GPU ...
personjerry's user avatar
0 votes
1 answer
1k views

MacBook Pro 16 inch thermal throttling even when temperatures are low

Sometimes when I start to use MacBook its cpu speed limit stays at 20% despite the low temperature. I use the app "HOT" to monitor it. Sometimes even when temperature is 60 Celsius cpu ...
Asiri Liyana Arachchi's user avatar
4 votes
1 answer
833 views

MBP 16 becomes slow after a while when connected to external monitor

I've noticed recently that my 2019 MBP 16' (running latest version of Big Sur) becomes very slow and sluggish after being connected to an external monitor for a certain amount of time (the time varies,...
johnymm's user avatar
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0 answers
95 views

iMac late 2012, temperature issues

I have a late 2012 iMac that's always worked really well but out of the blue it started to slow down significantly. It will work fine for half an hour and then slow to a crawl, cursor drags, starting/...
echoplex's user avatar
1 vote
0 answers
61 views

CPU constantly hot with low usage [duplicate]

My 2019 16" MacBook Pro with 2.6GHz 6-core i7 processor on macOS 11.3.1 is constantly running hot at ~60°C even when the CPU usage is only 8-10%. I've checked the ActivityMonitor, but no app is ...
LinusGeffarth's user avatar
1 vote
0 answers
82 views

MacBook Pro 16" temperature issue

I bought MacBook Pro 16" 2019 model 8 months back (Intel i7 version), and I can see that my MBP gets so much heat when I am using with external display and power adapter connected. I live in ...
Nevin Kristen's user avatar
1 vote
1 answer
1k views

Macbook Pro high CPU temp

I am currently using a macbook pro 16'' 2019 with intel i7. I am doing some calculation about molecules geometry and wavefunctions with some chemical professional software. They are very CPU intensive ...
thecapitan's user avatar
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0 answers
69 views

Can I Get Firmware For My New HDD?

I have another question. I have yet ANOTHER issue with my iMac. When the late 2009 iMac came out, replaced the internal hdd would make the fans go at full blast. I removed my Seagate ST3500418AS (...
LoganTheDistroEnthusiast's user avatar
2 votes
2 answers
2k views

How to prevent iPhone 12 Pro from overheating?

My iPhone 12 Pro (Max) gets extremely hot (to the point the screen dims, and beyond) with regularity, usually several times per day with just regular use of fairly basic apps. Others have reported the ...
stevec's user avatar
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6 votes
2 answers
14k views

How to find the current temperature of an iPhone's CPU?

There are extremely useful utilities like iStats for viewing the CPU temperature on a device running macOS. Is there a way to view the current CPU temperature of an iPhone? Note: the reason I want ...
stevec's user avatar
  • 5,085
2 votes
1 answer
474 views

MacBook Pro 2015 Fan Issues

I have a refurbished 2015 MacBook Pro 13", Intel i7 Processor, 16GB RAM and 512 SSD. When I first began using it I noticed it got unusually hot rather often, and so I downloaded Macs Fan Control ...
Peter Nielsen's user avatar
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0 answers
30 views

kernel_task at ~1000% on a 2019 macbook pro [duplicate]

I use a MacBook Pro 2019 and it increasingly often starts to run kernel_task at ~1000%. Fans are blowing too. I tried to cool down the computer with some additional device and also used Fan control to ...
Christian's user avatar
  • 527
3 votes
2 answers
4k views

New Macbook Pro 2019 has high temperature with low CPU usage

I got a Macbook Pro 2019 with Intel Core i9 Processors and it seems to heat up and get the fans spinning even with very low cpu usage. For Example, today when I was on a video call, Both my fans were ...
Brock Chelle's user avatar
0 votes
1 answer
88 views

Some of the keys on my keyboard are not working

Some of the keys on my keyboard are not working all of a sudden. I have a 2013 macbook pro. Some keys like the 'o' key work if I hold them down long enough, and some like 'e' don't work at all. This ...
Guy's user avatar
  • 101
0 votes
3 answers
2k views

Are Apple silicon M1 Chip MacBook Air/Pro "laptops" usable on the lap?

I have a work-issued MacBook Pro (16-inch, 2019) running macOS Catalina, and it's not usable as a laptop, because it runs too hot, making it impossible to hold on the lap for any significant amount of ...
cnst's user avatar
  • 988
0 votes
1 answer
686 views

MBP 16" i9 (Late 2019) Possibly Overheating [duplicate]

I just got a 2019 MBP 16" Model with 2.3 GHz i9 (turbo to 4.8GHz). When running simulations in MATLAB I have noticed the fans to spin quite loudly, and the CPU temp is rising very high. I have ...
djemerson's user avatar
4 votes
2 answers
78 views

Does using multiple monitors cause the iMac to run hotter?

I have noticed my iMac (Retina 4K, 21.5-inch, Late 2015) tends to run hot & noisy when watching some simple videos. I have tried whatever light duty diagnostics I can manage, such as activity ...
Manngo's user avatar
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