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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Retina MacBook Pro running very hot?

I have a late-2013 Retina MacBook Pro, and it gets really hot really easily. I've monitored the temp with htop and iStat and they both show the same readings. It's supposed to be able to play some ...
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4answers
13k views

Blank temperature in iOS 8 Weather app (showing just underscores)

Since upgrading to iOS 8 on iPhone, the Weather app will occasionally show a "blank" temperature (using an underscore: _ for each empty digit, so two underscores: __). The blank temperature also ...
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3answers
77 views

How can I alternate stopping the spinning disk and the fans?

I have a little bit of noise that I'd like to eliminate. It only bothers me in the dead of night, but at that time complete silence is a true blessing. My Macbook Pro has a spinning disk and two fans....
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2answers
617 views

iMac HDD fan running full speed. What is wrong?

My iMac (27" Mid-2010) and the HDD fan is spinning full speed with a measured HDD temperature of 50 °C. I have removed the dust and dirt from inside and it is pretty clean. Nevertheless even when at ...
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2answers
31 views

Apple Watch no longer displays temperature

Since I installed the most recent Apple Watch software version (early April, 2016) the temperature no longer appears on the watch face (-- appears), yet when I press the temperature (on the Apple ...
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1answer
1k views

What Causes rMBP Fan Noise When Connected to Two External Monitors

Connecting two external monitors to my Retina Macbook Pro 2012 has no problem except for more fan noise, which is a little bit annoying since with one external monitor one doesn't hear the noise at ...
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1answer
58 views

Is there a way to cap the temperature so my wrist are not burning?

Using a MacBook Pro (Retina, 13-inch, Early 2015) The heat of the place where the wrist are laying is annoying. I cannot measure the temperature of this exact part but with the help of smcfancontrol ...
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1answer
134 views

Are these temperatures on non-retina Macbook Pro 13 Mid-2012 normal when browsing?

I wonder if the temperatures on my non-retina Macbook Pro 13 Mid-2012 normal. I browse using Firefox. I tried using Safari but no noticable difference. CPU load is low. OS X version 10.8.5.
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1answer
179 views

High CPU and energy usage in Safari

Energy impact of Safari is extremely high on my Macbook Air Mid 2013 El Captian 10.11.2. It lead to high usage of CPU (Temperature ~65.0°C) and the CPU fan is running in full speed (6500.0 RPM) ...
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1answer
93 views

Windows vs OS X temperature, Windows runs hotter

I could see about 10 degrees celsius less when idle in OS X, compared to Windows 8.1, that's ~49 °C compared to ~38 °C. I've seen that, according to Macs fan control, the fan is shut down in idle, but ...
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1answer
344 views

Upgraded iMac 5k restarts randomly

I have a very frustrating problem and I need your guys help to fix it. I bought an imac 5k that I upgraded it's CPU, HDD, RAM. This is my second one i have upgraded and the second one that keeps ...
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1answer
147 views

My iPhone says it's overheating

MY iPhone says it's overheating, but I have felt the back of it and it feels fairly cool. A week ago, I did however drop it in the toilet. I did leave it in rice in the hot press for a day and a bit. ...
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1answer
778 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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1answer
26 views

What's the most effective way to cool down a MBP 13

I have a MacBook Pro 13 retina, which I've just recently started playing Call of Duty on, and I thought if I just blasted my fans the temperature would be kept in check. However, I only checked the ...
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1answer
112 views

MacBook Pro 13" 2015 CPU and GPU temperatures

I've noticed that my new MacBook Pro 13" 2015 (MF839) is getting hot while playing browser games or watching models at sketchfab.com. Both CPU and GPU temperatures rise to 100-105 degrees (Celsius) ...
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1answer
121 views

MacBook Pro overheating after being repaired

I've recently had my MacBook Pro 15" model late 2011 repaired, it was a graphics card problem, they changed it and now it's working. The problem that I've encountered now is that it is overheating a ...
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1answer
211 views

Is lowering my ODD fan speed dangerous after installing and SSD?

I've just installed a new SSD in my mid 2010 27" iMac. I put it in place of the disk drive (ODD) so now there is no optical disc drive in my computer. After I did the installation I noticed that the ...
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1answer
72 views

MacBookPro temperature inconsistency

I have a 15" MacbookPro with a Windows 7 Bootcamp partition. I check the temperature when using Windows but I think it doesn't report the right temperature. I shut down Windows with a temperature ...
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1answer
321 views

Macbook Pro 2012 md101 gpu throttling

When playing games on Macbook Pro 13 inch 2012 md101 under Windows 8.1 the temperature rises to 100 degrees pretty fast and gpu starts throttling giving a huge slowdown in games. Is this a normal ...
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1answer
153 views

Spotlight/Search Not Indexing, MBP Running Too Hot

Short version: Since installing Yosemite on my (mid'12) MacBook Pro, I have seen issues with battery life cut in half and the computer running excessively hot. Symptoms: In the Activity Monitor, ...
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1answer
154 views

How to know which apps to shutdown when there is overheating?

I once unfortunately closed a program that I found in the Activity Monitor to be using a lot of resources. A bit of Context: that day my macbook pro was suddenly heating up like crazy and the usually ...
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1answer
221 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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1answer
98 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
217 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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1answer
438 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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0answers
55 views

Mac Pro CPU temperature discrepancy

Before I just rush into ripping apart my machine & putting new thermal paste on the CPU heatsinks, I thought I'd try running this past Ask Different. I have a 'Franken-Mac' Pro 4,1 with the full ...
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0answers
176 views

iMac used for Target Display Mode runs really hot

I have a 2014 15" retina MBP that I've hooked up to my old 2009 27" iMac using it iMac as a monitor via Target Display Mode while the MBP is in clamshell mode. My problem is that the iMac turns ...
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0answers
2k views

MacBook Pro fan running with no CPU load and computer is COLD

Under normal circumstances (not installed new programs recently; had the usual programs running) I found my MacBook Pro 13" (Early 2015) with the fans running at average speed. I always have the ...
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0answers
87 views

MBPr 13" - still warm and out in the cold

I have been using my Macbook Pro Retina 13" (late 2012 model) for a few hours, shut it down, put it in my laptop bag and went outside. It was pretty cold, I could see my exhaled breath condense; I ...
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0answers
54 views

Disable single heat sensor?

I have a Macbook Air 15". A few days ago, it started running extremely slowly, with the fan at max RPM. I opened Activity Monitor and discovered that I had kernel_task running at about 400% CPU, ...
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0answers
85 views

iPad 2 Air Screen Not Responding

I received an iPad 2 Air about two months ago as a birthday present. Yesterday I was sitting in class and I turned it on to use it, but for some reason it said it was too hot. After the temperature ...
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0answers
565 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 (...
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0answers
357 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 ...
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0answers
15 views

Is a long-running, intensive process going to cause damage to my MBP?

I've written a script which uses Python and Rails to process millions of XML files and convert them into a format that I require. Due to the intense nature of the processing (which includes lots of ...
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0answers
70 views

Beachball of death, login screen and kernel_task issues

I have an issue with a 2 week old MBP 13 (early 2015). Here is 3 things I'm worrying about: Beachball of death. It is appeared 2 or 3 times (once when Chrome and Atom were open and once after 10 ...
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0answers
25 views

Diagnosing cooling issues on MacBook Air

I suspect the fan on my 2011 MacBook Air is not cooling efficiently, as it runs over 5000 RPM when I'm browsing the web and the CPU is around 75% idle. Is there any published benchmark for what the ...
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0answers
579 views

Does MagSafe 2 T Connector get really hot when charging?

I've a Macbook Pro Retina 15" Late 2013. My MagSafe 2 connector (T connector) gets really hot when charging. Is it normal ??
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0answers
2k views

High CPU temperatue on Macbook Pro Retina Mid 2014

I've recently bought myself a Macbook Pro 13" Retina Mid 2014 model. I went for the cheapest model but upgraded the CPU from 2.6Ghz to 2.8GHz. The specs are: 2.8GHz Dual-core Intel Core i5, Turbo ...
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0answers
114 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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0answers
75 views

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 is-it-normal-to-hear-the-macbook-fans-all-the-time-even-if-they-run-at-...
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0answers
517 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 ...