Various computer hardware components give off heat and can cause overheating
10
votes
1answer
8k views
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 ...
6
votes
1answer
337 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, ...
5
votes
1answer
369 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 ...
3
votes
1answer
177 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
votes
2answers
309 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
votes
3answers
5k 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 ...
2
votes
6answers
21k 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 ...
2
votes
3answers
4k 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
votes
2answers
793 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?
2
votes
4answers
2k 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
1answer
1k 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 ...
2
votes
1answer
703 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
votes
3answers
1k 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 ...
2
votes
1answer
945 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
4answers
6k 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
...
2
votes
3answers
2k 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 ...
1
vote
2answers
214 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
vote
1answer
294 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
155 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
vote
6answers
15k 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
vote
1answer
393 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 ...
1
vote
3answers
1k 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
vote
1answer
509 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 ...
1
vote
0answers
54 views
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 ...
1
vote
2answers
1k views
What's the normal operating temperature for a unibody plastic Macbook?
My Macbook seems to be running pretty hot lately. iStat Pro is stating that my CPU temp is nearing 180 degrees F, and that the heatsink is approaching 150. The laptop is noticeably warmer than ...
0
votes
1answer
2k views
When do the Macbook Pro fans turn on?
As a complement to this question about keeping the Mac cool so the fans don't get triggered:
At what temperature does the mac turn on the fans? I know that a high CPU load can cause the fans to go ...
0
votes
1answer
527 views
How well will a MacBook Air work in a hot dusty environment
A MacBook air would work very well for me functionally. However I expect that I may have to use it in a hot and dusty environment. Any idea how badly the cooling system would be affected by prolonged ...
0
votes
2answers
316 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?
0
votes
1answer
121 views
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 ...
0
votes
1answer
666 views
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 ...
0
votes
1answer
114 views
Set MacBook Pro on energy saving mode
I have a 2008 MacBook Pro (last one before the unibody ones) and have been monitoring a the laptop temperatures for almost a day. I used Temperature Monitor to graph the changes in temp and correlate ...
0
votes
1answer
56 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 ...
0
votes
1answer
84 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?
0
votes
0answers
368 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 ...
0
votes
0answers
956 views
Normal Operating Temperature Range for Aluminum MacBook Pro 15" circa 2012? [closed]
I've searched the web, including AskDifferent, support.apple.com, and Google but cannot find a definitive answer to the question "What is the normal operating temperature range for an aluminum 15" ...
0
votes
2answers
375 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 ...
0
votes
0answers
689 views
iMac running too hot?
I noticed my mid-2011 Core i5 iMac felt a bit too hot on the back. So i checked my iStat dashboard widget, Here are the temperatures:
HD: 52 degrees celsius
CPU: 49
Ambient: 35
GPU Diode: 55
GPU ...
-1
votes
1answer
292 views
Anyone know how to get the CPU temperature in iOS? [closed]
Let's say I'm running iOS 6.0.1 on an iPhone 4 and I want to get the temperature of the A4, are there any public APIs that will allow this? If not, can it be done on a jailbroken iPhone? I ride my ...
-2
votes
1answer
259 views
Overheating MacBook Pro GPU [closed]
I have a 5,1 Unibody 15" MBP (late 2008) that has recently started exhibiting strange behavior under Windows 7 when playing 3D games. After a few minutes of working normally it will suddenly run very ...
