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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118 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 ...
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1answer
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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 ...
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1answer
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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 ...
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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 ...
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321 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 ...
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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 ...
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3answers
888 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 ...
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1answer
52 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 ...
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1answer
24 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 ...
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17 views

MPB gives mechanical popping sound when it gets CPU heavy load

I'm using my 16' MBP (I bought it december 2019) for development (.NET Core). I experience that when I compile the code (the machine has 6 CPUs, htop shows 12 threads, so the compile can use up to 12 ...
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27 views

Macbook Pro Mid-2015 - Rightside Fan 0rpm - Sensor Error?

I have a recurring issue which is causing me problems: My MacBook Pro mid-2015 rightside fan seems not to be working. I have used different software (Macs Fan Control, iStat) to determine this. This ...
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1answer
227 views

MacBook Pro 2020 Fan Issues

I recently purchased a MacBook Pro 2020 13" (1.4 GHz, 8GB Ram, i5). For some reason, when I open Chrome and watch Twitch my computers fans turn on and go crazy. After opening Activity Monitor, I ...
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Severe GPU throttling freezes 2019 MBP16 after 30 minutes of Civilization VI

My brand new 2019 Macbook Pro 16" (macOS v10.15.7) suffers from severe GPU throttling after 30 minutes of playing Civilization 6. The freeze causes visual GPU artifacts that extend beyond the ...
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Replaced Ambient temperature sensor in imac mid 2011 (A1314) fans still blowing at full speed

My iMac fans started blowing at full speed for sometime so I rebooted and ran diagnostics and received an ambient sensor error, image attached below. I had been considering adding an SSD in addition ...
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101 views

Why is accountsd using so much of my CPU? Conversely, why are my computer's fans overheating so quickly and often? [duplicate]

I have a somewhat new MacBook Pro running Catalina, and very recently I began having a fan issue. No matter what I did, my fans seemed to be running at full power, and I can't for the life of me ...
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52 views

3 Days old Macbook Pro 16" CPU Temperature reaching 97C°

This is my first macbook ever. After 3 Days of using this 16" Macbook Pro, the temperature of the CPU core reaches 97°C. it happens when i am using Android studio with the simulator to test an 8 ...
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2answers
231 views

Seemingly random CPU throttling

My 2018 macbook pro with i9 processor running Catalina version 10.15.6 seems to randomly throttle the CPU frequency even with low CPU utilization and lowish temperatures: I am using a docking station ...
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1answer
212 views

Why are CPU fans running on my MacBook Pro 15" full blast while my laptop has just booted up and waiting at the login screen?

I know a lot of people have problems with the MacBook Pro's CPU fan running super loud and IMO the Activity Monitor is less than unreliable in telling what's really causing it… but let's check what ...
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MacBook Pro 15: Is it normal that the discrete GPU will activate when using an eGPU?

I've been having heat problems with my MBP15 for a while when running external displays. I believe this is partly caused by the discrete AMD 555X GPU being active. In order to avoid this, I have tried ...
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1answer
305 views

iMac mid 2011 T2 secondary heatsink heating up

My iMac mid 2011 started heating up about a year ago to the point that the hard drive broke and had to be replaced. I managed to replace the hard drive and I also replaced the power supply module as I ...
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1answer
736 views

Why does a Macbook pro's internal screen flicker ONLY when it is on a GPU?

I have a Macbook pro 2017 (15 inch, touchbar). Since a couple of months ago, once the laptop is on GPU for a long time (at least 3-4 hours), the internal screen starts to flicker, like this: The ...
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51 views

MacBook Pro 13" 2017 GPU spike load

I have a MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports), Intel Iris Plus Graphics 640 1536 MB, macOS Catalina Version 10.15.5 (but the issue is older). Sometimes, mostly when I am using Chrome (...
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81 views

MBP dedicated GPU stuck in high power state - system kexts not loading

Here comes another dedicated GPU (dGPU) issue on my Late 2013 15" MacBook Pro! Problem: My NVIDIA GeForce GT 750M is not able to go into its lowest power state once automatic graphics switching ...
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1answer
1k views

Macbook Pro fan running full speed, activity monitor shows no computationally intensive applications

My 2018 Macbook pro 15 inch fan is running at full speed all the time. I checked activity monitor and my idle was >95%. If this is a hardware problem, is there any way to fix it without opening up ...
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1answer
376 views

Is 80-90 degrees celsius hot for MBP 2019 CPU temperature

I just converted to apple and bought the latest 16inch MBP with a 6 cores core i7 processor and 16GB of RAM. I am noticing that it gets hot easily, on idle the temperature is around ~45 degrees ...
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45 views

2017 MBP has started to degrade in performance - dreaded kernel_task

All - My normally stable mbp 2017 has started slowing down with kernel_thread dominating the CPU in recent weeks. This condition persists across reboots. My primary concern is that the machine is ...
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1answer
96 views

MacBook Pro 2018 overheating

The problem When I use my laptop, it always heats up a lot in the center above the touch bar on top. I can feel it quite heated below as well under the top center. The CPU is fine (no processes going ...
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1answer
1k views

2019 MBP 16" 2.3Ghz i9 severe thermal throttling (Catalina 10.15.5)

Brief Summary 2019 MBP 16" 2.3Ghz i9 shows severe thermal throttling CPU Frequency hovers around 1.9-2.0 Ghz Power draw doesn't exceed 30W Max Temperature only 76ish degrees Celcius Exporting a ...
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1answer
132 views

Kernel task takes about 500% CPU after connecting external monitor

I work with macBook Pro (15 Inch 2019, Catalina OS). I can't work with external monitor. 3-5 minutes after pluging in I have kernel_task that takes something about 500-900% CPU. I know there are some ...
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0answers
25 views

Is my CPU core/CPU proximity too high in temperature? [duplicate]

As mentioned by the title 'is my CPU core/CPU proximity to high in temperature?'. The underneath of my macbook gets seriously hot. Not only this but if an application is being 'verified' when opened ...
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1answer
185 views

Is it normal to have a MBP's temp at ~50? [duplicate]

My MBP runs very hot and I thought the fans were broken because there's no air blowing out the back and no fan noise as I used to hear in my older MBP so I installed macs fan control Apparently, the ...
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0answers
21 views

CPU Die when fan speed is slow

I recently bought a second hand MBP early 2013 15' quad core. Everything seems fine so far except 2 cpu died events I experienced. The first one is happened last week when I exported a 2 minutes ...
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2answers
3k views

How to prevent MacBook pro heating when using external monitor, which causes the internal monitor to flicker after hours of work

Problem: It is well known that when MacBook Pro is connected to the external monitor, the GPU gets involved and the system heats up. The common advice is to just live with it because the system will ...
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4answers
2k views

Is it possible to turn down the frequency on a LG 5K Ultrafine and will it help reduce GPU heat?

My MBP15" often overheats (forcing fans to full) when plugged into my LG 5K Ultrafine. I understand that it runs at 60Hz and that this puts strain on the GPU. Since I'm mostly coding/browsing I wanted ...
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1answer
264 views

iMac 2019 fans rather loud (and at 2850rpm) when only 30% CPU - is this normal?

Situation: new iMac model retina 21.5-inch 2019, 3.2GhZ 6-core intel Core i7 I can not hear fans at all during normal non-cpu intensive operation (web browsing, etc.). They are at 1200 rpm. This is ...
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1answer
68 views

A1398 2015 - inadequate fan behaviour/noise

I'm toasted. My long-awaited purchase disappoints me extremely. I'm a quietness-freak. One of the main reasons to get Macbook Pro 15" 2.8, R9 M370X was Apple's tendency to keep hardware hot but quiet,...
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49 views

Workaround for a MBP 2017 overheating

I am facing an issue with my MBP 2017 without Touchbar and without a T2 Chip. When I am working with the MBP, for the first hours, sometimes when I perform heavy tasks with it, I notice that the FAN ...
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49 views

Apple Hardware Test, 4SNS/1/40000000: TB0T-129

I made an Hardware Test with may MacBook Pro 5,1(A1286) and got this Error code below: 4SNS/1/40000000: TB0T-129.000 This is a sensor error. Battery temperature sensor is not working. Macbook is not ...
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2answers
33 views

kernal_task bringing MacBook Pro to a halt - fan problem?

I have acquired a 2nd-hand mid-2015 MacBook Pro which I use connected to 2x cinema displays (the laptop itself has some screen damage). When connected up for the first time I noticed it was going ...
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0answers
302 views

Macbook pro getting overheating with external monitor

My macbook pro (13") is overheating when I connect an external monitor (27"). I understand it's a problem with the scaling and the GPU, but what are my options to prevent that? An external GPU? A ...
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1answer
81 views

How to identify each of the fans inside my iMac 2010

First of all thanks for the great job you make here. You´ve helped me a lot of times with success. I´d like to identify each of the 3 fans inside my iMac. I run iStats gem and I can see three fans but ...
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1answer
288 views

Different temperature reports by different apps?

I was looking for a free app to display CPU temperatures, so I tried Fanny and Menumeters. Both work OK but I noticed that Menumeters reports 5-10 Celsius less than Fanny. Any ideas why this happens? ...
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2answers
2k views

Is it normal for a MacBook Pro to run so hot?

I have a new MacBook Pro 16" and I've noticed the physical temperature between the touch bar and the screen is really hot to the touch and with a thermal gun measures 105 degrees F. The same location ...
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1answer
55 views

mid-2015 MBP, 16GB, upgraded from 2.5 to 2.8 model. Benchmarks are almost the same, even worse for the 2.8 in some tests

Any thoughts on why this would be? I migrated everything at power-on on the new mac after formatting its Samsung EVO 970 plus, so they have identical drive contents and OS. Also, the 2.8 gets hot ...
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1answer
233 views

How come the Podcast app is hogging so much GPU?

I have a 15 inch 2015 MacBook Pro with Catalina installed, and I was wondering why my fans go nuts when I play a podcast with the Podcasts app. Htop didn’t show any unusual CPU activity, but then I ...
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1answer
163 views

HomeKit thermostats and Celsius

Since upgrading to iOS 13 and macOS 10.15, one can only set temperatures in an integer number of degrees, which works fine for Fahrenheit, but isn't fine for Celsius. iOS 12 and macOS 10.14 permitted ...
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41 views

MacBook getting hot while playing games

I've got a 2019 quad-core Pro. Recently I installed playonmac so I could play a couple of old computer games I love (like Championship Manager 01/02). However, whenever I play it the fan goes on ...
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1answer
695 views

I really want to know what is proper the cpu temperature for my Mac book [duplicate]

I'm using Mac book pro 13 inch , 3.1 ghz i5 dual core. I have set up Mac book fan control and I am able to check the temperature. I was just surfing the internet, and the cpu temperature shows about ...
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1answer
352 views

MBP fan running but no airflow

I have a 2014 MBP, running very well but for one issue: the fan doesn't seem to move any air around, even though I can hear it running. As a result, the laptop gets quite warm, and further, it seems ...
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1answer
652 views

Are 82°C to 98°C Temperatures extreme for a MacBook Pro?

I've noticed that my 2018 MacBook Pro 15" with an i7 frequently hits 82°C while using Google Chrome and 98°C while playing video games. As an example, while running Minecraft with maybe 12 mods, ...

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