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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24 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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55 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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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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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
34 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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50 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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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
29 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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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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46 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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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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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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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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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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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
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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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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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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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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
24 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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110 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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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
105 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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349 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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39 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
99 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
85 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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36 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
217 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
176 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
354 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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337 views

MBP 16": Relative ambient heat of i7 v. i9

So for me a very important aspect of devices is their ambient heat. I have an annoying kind of eczema that causes rashes on my hands/skin if I have sustained contact with something warm, and it can be ...
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1k views

Can I completely turn off the fans on a MacBook Pro (0 RPM)

I would like to know if there is a utility to completely turn off the fans. Currently, when completely idle, fans are showing 2000 and 2100 RPM. Although this is probably not recommended, I would ...
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1answer
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Macbook pro GPU temperature Limit

On GPU intense tasks like gaming, my laptop starts with increasing the GPU temperature and frequency ( to 85 degrees and max GPU frequency ) then after 5 min or so reduce the temp to 67 degrees ...
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Mac Pro 2009 very hard to boot; shuts down randomly; fan spinning high

My Mac Pro from 2009 has been very hard to boot recently. The procession is usually as follows: Will start to boot, shuts down, fans start spinning at maximum speed, for multiple times Will get to ...
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447 views

Is it normal for MacBook Pro to get extremely hot under idle loads? [duplicate]

I have a 2019 MacBook Pro and this is about the first Mac I've worked with. The metal case above the keyboard gets extremely hot even when I'm not using the MacBook but have it on. Under normal and ...
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1answer
289 views

Macbook feels a lot hotter than usual; are these temperatures normal?

I have an early 2015 13" Macbook pro with a 3.1 GHz Intel Core i7 processor. I've been having some battery issues lately, that could be been attributed to charging my laptop and plugging in foreign ...
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2k views

iPhone XS - face id will be available when iPhone cools down

I upgraded iOs to 12.4 yesterday on my iPhone XS and am having problem with Face ID since then. There is no other temperature warning. Only Face Id seems to be having problems. Have tried restarting, ...
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1answer
360 views

How to change MacBook's performance back to normal after it was reduced?

Sometimes my MacBook shows a "Performance is reduced" notification after it gets hot from running intensive apps on a hot summer day. When it's left idle for about 30 minutes and becomes cooler, is ...
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131 views

MacBook Pro Fans Won't Turn On

I just bought a refurbished Macbook Pro (Retina, early 2013). It seems to be overheating and shutting down without the fans ever coming on. I first noticed the problem while trying to download a game. ...
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1answer
322 views

Overheating Macbook Pro

I am trying to diagnose an overheating Macbook Pro. When starting up some resource-intensive software, it shows spikes in frequency or temperature. Are the spikes of frequency above the 2.8Ghz of the ...
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1answer
118 views

Is 65 celsius temperature on a MacBook Pro 2017 okay?

My 2017 MacBook Pro 15" gets really hot when it's connected to an external monitor. The temperature reaches 65 Celcius, and I am wondering if this is considered an okay temperature? If it is not what ...
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49 views

Are these temperatures normal?

I have a 13-inch, Mid 2012 Macbook Pro that constantly overheats. Normally, the only app I will be using will be Google Chrome and I will still experience these temperatures. But occasionally I use ...
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71 views

MacBook thinks it's overheating when it isn't?

I have a MacBook (oldish late 2012 retina 13") that seems to exhibit classic overheating symptoms, except that it isn't hot. Under load it tends to shut down after a while, can be turned back on ...
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907 views

My MacBook Pro 15 2018 is too hot [duplicate]

I bought a 15'' MacBook Pro a few days ago and it gets too hot under load. Idle temperatures are about 40-50 degrees light use 60 degrees but opening a light game like league of legends will set the ...
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1answer
242 views

Do the MacBook Pro (15-inch, 2018) have different cooling systems depending on the GPU

I read here that the thermal throttling of the i7 and i9 on the latest MBP (2018, 15-inch) can be significant. I also got information that the cooling system is different when the MBP is upgraded ...
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250 views

iCloud (re)uploading all my documents again

I have recently bought a new Macbook Pro 13" (i7, 16GB) and to do the switch from the old one to this one, I have installed Mojave and restored it from my other Macbook Pro's Time Machine backup. This ...
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123 views

Can I check if the cooling system of my Macbook Pro 15" Early 2013 works as intended?

I have this model: MacBook Pro "Core i7" 2.7 15" Early 2013 2.7 GHz Core i7 (I7-3740QM) Intro. February 13, 2013 Disc. October 22, 2013 Order ME665LL/A Model A1398 (EMC 2673) Recently ...
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1answer
134 views

cpu clock too low / force cpu clock / overclock

I have a MacBook from a few years back. When I use it write some code and browse the internet, the fans go very fast and the noise is horrible. But the temp shows only 70 C. So I used SMC to force ...
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3answers
2k views

Adjusting graphics cards settings in Mojoave to reduce overheating with external monitor (MacBookPro2018) [duplicate]

It seems common for MacBookPros2018 overheating when connected to external display (see other info about the general problem here, or here). Despite there is no risk for HW, it's quite uncomfortable ...

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