Various computer hardware components give off heat and can cause overheating

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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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Normal operating temperatures and fan speeds for mid-2006 iMac?

I have an aging, but still functional mid-2006 iMac at home. Last night, my wife was in the basement and said she smelled a faint odor of something burning, she said it smelled like it might be ...
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67 views

Normal Fan Speed for an early 2011 MacBook Pro

I have an early 2011 Macbook Pro and I noticed today, strangely for the first time, that the fan(s) are always running and audible. I have to admit that I usually have some background noise when using ...
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194 views

MacBook Pro, Thunderbolt Display and overheating

I recently purchased a Thunderbolt Display to use with my Late 2011 MacBook Pro 13-inch. I was quite happy with the overall performance until I noticed that the only fan in the laptop started running ...
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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
169 views

Flash higher CPU usage under OS X than Ubuntu?

I recently installed Ubuntu 13.10 on a 2011 late Macbook pro. With the same version chrome and pepper flash plugin and flashblock extension to block irrevalent flash. When I watch some flash video ...
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63 views

How to measure GPu temperature MBP 13 mid-2010?

My question is very simple. I have some troubles with my MBP 13' mid-2010 (kernels panics, crashs and reboots). I think the problem is coming from the GPU (Nividia 320m). One solution could be to ...
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138 views

MacBook Air hot after sleeping

I am experiencing strange issue with my MacBook Air (2011, with Mavericks): I don't like to turn off my machine, so I usually just close the lid and put my laptop to backpack before I go to sleep I ...
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49 views

Mac Overheating Problems and Fan Noise

I have a old MB, which has Snow Leopard 10.6 Installed onto it. How can I fix the overheating and that fan noise? Whenever i open a large file or like install Windows 7 from Bootcamp, it would ...
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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… ...
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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 ...
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67 views

Why is my MBPr so hot when 2 external displays are connected?

MacBook Pro Retina, 15-inch, Late 2013 Processor 2,3 GHz Intel Core i7 Memory 16 GB 1600 MHz DDR3 Graphics NVIDIA GeForce GT 750M 2048 MB Software OS X 10.9 Built-in Retina Display 15-inch (2880 ...
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117 views

Is there a way to view and control the powerstate of the discrete GPU on a 2011 MBP in OSX?

I noticed that running with the discrete GPU uses more power and generates more heat. I just need the discrete GPU to drive an external monitor, I'm not concerned about performance. By controling the ...
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66 views

Normal Temparature of a Macbook Pro

I received my Macbook Pro yesterday. I would like to know what is the normal temperature of a Macbook Pro. Here is mine is this okay ?
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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 ...
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2answers
639 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 ...
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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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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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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 ...
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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 ...
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Is it true that Mac Air fan sleeps almost all time?

Hmm, while I was typing this question's title, some related questions appeared: air-11-i7-2011-fans-come-on-never-turn-off ...
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Macbook Pro Retina 15'' - High CPU temperature

I've seen a few similar questions on here but none seem to have a good answer, nor seeing the temperature levels I'm seeing. Notebook is only a month old and just installed iStat Menus and noticed ...
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234 views

6000 RPM at 65C

For a few days I'm noticing the fans spinning wildly and the CPU temperature is around 65C.. I'm only doing normal browsing and the fans are at 6000RPM. Quite strange. I have MacBook Pro mid 2010 ...
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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 ...
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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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237 views

Mac getting very hot while watching flash

I'm running OSX 10.7.5 on my Mac computer (desktop, not laptop). I have just been watching some Starcraft 2 stream from Dreamhack (in flash) when I noticed my computer was getting pretty hot. I ...
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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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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 ...
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110 views

Macbook Pro Mid-2012, ethernet heating

I am a Mac newbie and I have a new 13" Macbook Pro. I used the Ethernet connection for wired Internet in my dorm room, but after using it for half an hour or so, the Ethernet port and the area nearby ...
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137 views

Macbook Pro 2011 Heat Problems

This is more a general enquiry into whether I should be concerned, but I have a 2011 Macbook Pro 13" and over the last week and a half I have noticed the left side of the case (power point, QWE keys ...
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254 views

How many fans does a 2.26 GHz 15" 2009 MacBook Pro 5,5 have?

I have a 15" MacBook Pro 2.26 GHz purchased in late 2009, model "MacBookPro5,5". The FanControl PrefPane reports Right Fan: -1 RPM Does this model only have one fan, or does it have two?
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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 ...
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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 ...
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How to identify the 3 thermals sensor connectors from the mac mini motherboard?

I opened my mac mini to switch the DVD with another hard drive and I forgot to take a picture with the ways the 3 thermal sensors are connected. THeir codes on the mainboard look like: J5550 - left ...
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992 views

Where the ambient temperature sensor is located on 27" iMacs?

I'm using iStat Pro Dashboard widget to get live system data of my mid-2010 27" iMac. Under temperature readings it lists Ambient. Where the sensor is approximately located?
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Should I be concerned that the fan on my 11 inch Air makes a lot of noise when I play Call of Duty Black Ops?

It's a Mid 2012 version (full spec here). I play the game with the lowest graphics setting possible (with Shader Warming turned off, texture quality set to low etc.). The game runs smoothly. The fan ...
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419 views

New Retina MacBook Pro - Temperatures Signaling Defects?

So I've purchased a new 15" MBP and I've had issues with fan speeds, graphics switching, and the temperatures. No matter what I do, just by having internet browsing using Chrome, my idle temperature ...
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1answer
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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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540 views

How does iPhone5 battery fare with always ON 3G, not heavy music listening (+ 1-2 hours of Bluetoth), ocassional GPS and Camera use? [closed]

I WILL keep the 3G always switched ON. Also continuous syncing of some services like Gmail, Twitter, Contacts/Calendar/Task apps, WhatsApp, FlipBoard/GoogleCurrents, SimpleNote, Instagram, IM, ...
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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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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 ...
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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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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?
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481 views

Temperature different of adapter since Mountain Lion (maybe only rMBP related)

Since I've got ML (Mountain Lion) installed, I've got the feeling that my adapter (Magsafe-2) is not getting as hot as before? Since this is my first Macbook, I really wasn't familiar with the ...
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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 ...
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GPU temperature is above 70 C, and CPU fan is above 2400 rpm

I've had my iMac for two years now. I play a lot of games and watch a lot of HD videos. In the past week, the computer has gotten a lot hotter than usual and it stutters a lot, and I feel like the two ...
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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 ...
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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 ...
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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 ...