Various computer hardware components give off heat and can cause overheating

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15
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Can I get the CPU temperature and fan speed from the command line in OS X?

Is there a command I can run from the command line in OS X to get the current CPU temperature and/or the fan speed(s)? To be more specific, I'd like to be able to get the same info available in the ...
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8answers
1k views

How significant is the new iPad's heat issue?

I've heard a fair bit about problems with the new iPad "overheating". However the details seem a bit shaky. Is the increase in heat noticeable? Is it only when playing games and watching videos, or ...
9
votes
3answers
1k views

Is it okay to stack an Airport Extreme on top of a Mac mini?

Is it ok to place an AirPort Extreme base station on top of a Mac mini, or could this cause problems (like overheating or interference) with either device? As depicted, they do fit together pretty ...
6
votes
1answer
657 views

Dangers of limiting fan-speed

The situation: I work in a very quiet office using MBP Spring 2011 with an i7. The problem is that when I put an intense but short workload for a few seconds on the CPU the fans spin up heavily, ...
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1answer
425 views

Air 11" i7 2011 fans come on, never turn off

I bought a new MBA 11" i7, it's about two weeks old. I've noticed that as soon as the fans come on, they Never turn off. If I watch a video, or do any slightly heavy lifting, the CPU hits 70C, the ...
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5answers
4k views

Horizontal or Vertical stand for cooling a Macbook?

I have a Macbook Pro (2010 model) that I like to connect an external monitor, keyboard, and mouse too. I like to keep the lid down, and have it running almost all the time, 24/7. There are several ...
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3answers
3k views

Get disk temperature in terminal

Is there a command I can use just to get the hard disk temperature in the terminal? Is this possible without a third party app?
4
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1answer
3k views

Macbook Pro Retina 15" nearly burning my fingers, is this normal?

A few months ago I bought the new Macbook Pro Retina 15" with a 2.7GHz I7 cpu. So far it's been working fine, but as soon as just 1 of the cpu cores is at 100% the thing heats up like crazy. Heating ...
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3answers
11k views

Should I be worried about 98°C CPU temperature on MacbookAir?

I'm a developer and often times I need to compile some packages or maybe even run some codes for couple of hours. Recently I have noticed that whenever I use Homebrew to install something, it ...
4
votes
5answers
17k views

What are the maximum temperatures for my MacBook Pro?

I have this MacBook Pro (3,1). I know there are maximum temperatures at which the system will shut itself down in order to prevent damage. I know this because I have seen it happen a couple of times ...
3
votes
6answers
45k views

How to keep your MacBook Pro cool (unibody)

I'm a developer/system admin/unix guy so I have many IDEs/Editors/Terminals running and I'm also temperature freak... I like it cold, here are a few tips I did to keep my MacBook Pro Unibody under 46 ...
3
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1answer
208 views

MacBook Air wrong fan reading

My Macbook Air (Summer 2011, i7) tends to think it's running way hotter than it is, and permanently ramps up the fan. Closing the computer and reopening resets the mistaken sensor, but I'd rather not ...
3
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3answers
91 views

6000RPM all the time with no activity - restart helped

I'm on Mountain Lion and for two days my fan RPM was 6000 and the temperature was 92C. I decided to restart and now it's 3300 RPM at 68C. How come? Is this some kind of bug? I remember having ...
3
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1answer
2k views

My Macbook reached 100 degrees Celsius while compiling a software package, is this normal?

I don't often hear my Macbook accelerate and start heating up, but today I was installing mariadb through Homebrew and it required compiling. I have a mid-2012 15" Macbook pro with a high-resolution ...
3
votes
2answers
3k views

Process “mtmfs” is using 98% of cpu, heating up the core and runing the fans flat out [duplicate]

Process "mtmfs" is using 98% of cpu, heating up the core and runing the fans flat out. I have quite the process through activity monitor, but does anyone know a longer term solution? I am running a ...
3
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2answers
330 views

SSD instead of DVD temperature

just installed Intel 320 instead of DVD in Macbook MC516LL. Does old DVD place is equivalent to standard HDD place in Macbook from temperature (thermal) perspective?
3
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3answers
2k views

Cold temperatures cause finger resistance on iPad screen

I have an issue that I've been experiencing: semi-cold fingers, iPad, and/or room make for a very stubborn drawing experience (I'm an artist that uses the iPad). I'm talking indoors, and it doesn't ...
3
votes
2answers
735 views

OSX able to throttle down CPU on heavy usage?

I have a company macbook with a 4 core 2,8Ghz i7 (to much power for a "laptop" if you ask me, whatever). Sadly the cooler seems not to be able to handle 100% cpu usage. Sometimes filevault stresses ...
3
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3answers
701 views

Macbook Pro random shutdown

Has anyone experienced this problem? Does anyone have a solution? I have scoured the internets for solutions and found many different answers. I am on a Macbook Pro 6,1. The one that has worked for me ...
3
votes
3answers
59 views

Macbook2,1 late 2006 fan not spinning

My macbook is very hot, the fan never starts. I tried some softwares like Fan Control 1.2, scmfancontrol 2.4 and Macs Fan Control but each of them is giving me always 0 rpm on the main (right) fan… ...
3
votes
3answers
3k views

Way to limit CPU speed to prevent temperature spikes?

I have a 17 inch MacBook Pro with Thunderbolt. Occasionally, it heats up and the fan has to kick on. This happens typically during heavy CPU utilization, but also seemingly randomly when doing ...
2
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3answers
7k views

MacBook Pro GPU Diode over 100 degrees Celsius hot?

I was playing Trine 2 yesterday and checked the inside temperatures with iStat Pro after playing. It showed the GPU Diode at being 107°C hot. Is that bad for the GPU Diode or other components inside ...
2
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3answers
1k views

How can I find what is making my Mac run hotter and causing the fans to run more often?

My Macbook Pro's fans are running louder. I've also noticed that the average internal temperature is significantly higher. (187°F as I write this.) This didn't used to happen unless I was running ...
2
votes
1answer
1k views

Is it safe to work with MacBook Pro lid closed?

My MacBook Pro (8,3) often gets fairly hot (see current sensor readings here: http://pastebin.com/2rj7GGAJ) even when it isn't closed. I'm about to purchase a DualHead2Go (or a TripleHead2Go) so I can ...
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4answers
7k views

MacBook Pro CPU temperature is over 90 degrees while playing video

I have MacBook Pro: 13-inch, Late 2011 2.4 GHz Intel Core i5 4 GB 1333 MHz DDR3 Intel HD Graphics 3000 384MB OS X Lion 10.7.4 When it plays a video, the CPU temperature goes over 90 ...
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4answers
2k views

Fan Speed and Temperature on MBP Retina 13 2013

I have a 13 inch MacBook Pro retina (bought new in 2013). When running normally (which is usually online downloading and editing in Eclipse - nothing too heavy, often 90%+ processor idle) it runs ...
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4answers
3k views

Macbook Pro (Early 2011) running hot with OS X Lion

I recently bought the baseline 13'' Macbook Pro with i5 CPU and Lion preinstalled. I mostly work with Firefox (without Flash), NetBeans IDE and iTerm running and the machine tends to get really hot ...
2
votes
2answers
3k views

How can I disable visual effects in Lion?

I've just installed Lion on my 24" iMac from 2006 and do have again problems with screen-freezes due to overheating. This is a known issue with the 2006 iMacs since OSX late 10.5 / 10.6. While for ...
2
votes
2answers
3k views

Mac OS X 10.8 QuickLook Causing CPU & Temperature Spikes

I have consistently been having a problem with my computer overheating due to random processes using 100%+ CPU. Commonly the problem occurs with the process QuickLookSatellite-general, but it is not ...
2
votes
1answer
2k views

Is there a safe temperature definition for the Macbook Pro Retina?

I'm using a grid-computing software to donate my CPU time, so every core is always 100 Celsius degrees (212F), all day. Is there a reference, from Apple or other source, indicating a safe temperature ...
2
votes
1answer
1k views

How hot is it normal for a 45 watt MagSafe Adapter to get during use?

I have a Mid-2011 MacBook Air (13"). Recently, the 45 watt MagSafe Adapter grew extremely hot (painful to touch) and smelled slightly singed while I was using the machine and plugged into the wall. It ...
2
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1answer
436 views

MacBook Pro Heat Indicators

I just downloaded a temperature monitor app for my macbook pro. It tells me the following temperatures. I was wondering which ones I should take extra note of and what temperatures of those I should ...
2
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1answer
109 views

Mac mini 2011 mid - temperature issue

I have a mid-2011 Mac mini with an Intel i5 2.3 GHz processor. When I checked the temperature, it was 90 degrees Celcius. The computer was running for three days. It didn’t work on anything. Is this ...
2
votes
1answer
327 views

Retina Macbook Pro 15'' overheating?

I got this RMBP mid 2012. I am now noticing overheating problems when I browse the internet + about 15 tabs of youtube open, mainly music. I also notice that my battery quickly depletes during this ...
2
votes
2answers
638 views

Macbook Pro 15 mid 2012 - not able to solve overheating

I've been trying to solve my overheating problem for quite a long time, but had no luck, so I will try to describe it to you and hopefully, someone can come up with some solution. I've also read ...
2
votes
1answer
2k views

What are safe CPU temperatures ranges under heavy load in the unibody Macbook Pro?

I noticed that under heavy CPU load, the temperature differences between the CPU and CPU heatsink are very high: picture from iStatPro; 2.0 GHz quad-core i7 (2635QM) Sandy Bridge; Macbook Pro 8.2 ...
2
votes
2answers
1k views

Is it normal for a 15 inch rMBP to get extremely hot during use?

Sometimes when editing images, creating websites, using Adobe software, my Macbook Pro retina display, seems to get very, very hot. Not just on the bottom but on the top by the screen as well. To be ...
1
vote
6answers
29k views

How to debug iPhone overheating when the cause is clearly not the environment when the phone is used?

My iPhone 4s with iOS 5.1 started to present overheating very often: 2-4 times a day and this happened while the outside temperature is only around 18-20C and the phone was not under heavy use, in ...
1
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2answers
362 views

Transporting from home to work (~10 min by car), should I just make my MacBook Pro sleep, or shut it completely down first?

I just got a new MacBook Pro, and is looking at how the power modes work, and according to this article: About Energy Saver sleep and idle modes in Mac OS X, making it sleep by closing the lid (say) ...
1
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1answer
321 views

iMac is warming

I've 22 inch iMac. I am using it about 1 year and just noticed that the top back of the screen is very hot as i can't put my hand about half a minute on it. I've googled some and downloaded istat ...
1
vote
1answer
330 views

How do I fix enourmous CPU usage & temperature on MacBook Air when trying to install Wine?

I have a 2012 MacBook Air Intel Core i5 8 GB memory (Mountain Lion). I am trying to install Wine through MacPorts, but after about a minute of building Wine, CPU usage rapidly rises into the 90s, and ...
1
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1answer
605 views

What part of the MacBook Pro 13-inch 2.4 GHZ (Mid 2010) logic board is what sensor?

My MacBook Pro 13-inch 2.4 GHZ (Mid 2010) starts up normally but after approximately one minute the fan accelerates and the system slows down dramatically. The CPU load goes up to 99% as I see it on ...
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3answers
2k views

iMac excessive GPU heat when using a second display

Without a monitor connected (via Thunderbolt/mDP) to my iMac (2011, 3.4 GHz, 6970M 2GB), iStat Menus reports the GPU is using ~15 watts, and has a temperature of 60c. With one connected, it uses ~35 ...
1
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1answer
51 views

Monitor GPU performance on OSX

Is there an application or tool that can monitor GPU performance on OS X? Specifically I would like to see the current speed/utilization and temperature of the integrated NVIDIA chip. For Windows, ...
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3answers
374 views

Why is my MacBook getting hotter than usual since some time?

Since some time my MacBook is constantly hotter than it used to be, even when not having much CPU load. What could the cause be? Resetting the System Management Controller (SMC) didn't completely ...
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1answer
108 views

Sudden spike in CPU temperatures

My Macbook Pro 13" early 2011 has been running fairly cool for the last 4 months, about an average of 32-40C. However, within the last few days, the average temp has gone to an average of 45 - 52C, ...
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2answers
372 views

Is there any way to ignore a heat sensor on a macbook pro?

I recently replaced the ribbon cable which connects the top case assembly on my macbook pro 4,1 (early 2008). My keyboard is now working but unfortunately the fans are reving up to 6000 rpms and ...
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0answers
108 views

2012 Macbook Pro (Retina) Heat Issues

I have a mid-2012 Retina Pro (loaded: 16GB RAM, 768GB SSD, etc.), with annoying heat issues. Whenever I'm doing anything GPU-intensive (games or CUDA simulations), after about 30 minutes, the ...
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2answers
440 views

Is there a way to control the clock speed of the GT 650M GPU in a Retina Macbook Pro from OS X?

This is not about gaming performance. I've got that all sorted when booting into Windows. This is a 2012 version rMBP. The question is about trying to gain a little more control over the hardware ...
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0answers
253 views

iPhone 4S chip overheating after replacing screen

I just bought a used iPhone 4S with cracked screen, and installed a new lcd with gold frame. Just after putting the phone together it starts overheating. I have not installed any apps since recovery ...