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mac temp

Today, August 6th, 2011, in Basra, Iraq, with my temp set on 68 F/ 20 C on my air conditioner in my room. But, since I live in a metal can over here. The Air Conditioner was not directly on my Computer, but blew air upwards. Outside it's around 120 F/ 49 C I wanted to convert some videos from AVI to mp4. So, I used Wondershare converter and converted 65 videos Sequentially. It's a slow and cpu intensive process and causes my cpu to get really hot. But, it works just perfect to convert the videos for me.

Here's the data:

15" 2007 MacBookPro3,1 / Intel Core 2 Duo 2.4 GHz / Nvidia GeForce 8600 / 6 GB Ram OWC / 500 GB Seagate SSD Hybrid / *Right Fan is inop, awaiting replacement. / * Griffin Elevator Laptop Stand / SMC Fan Control set to 4600 RPM (Left Fan Only)

Time Elapsed: 5 hours 22 Minutes
Here is the hottest that it got in that whole period:

I decided that I wanted to watch some videos that has heavy flash usage, at www.Stratfor.com. I continued to watch videos, and go about my normal business. My computer never turned off because it was too hot, which is what I was going for. It was hot to touch, but, that's what the aluminum is for. As long as the air was allowed to flow freely around the laptop, the aluminum did it's job and cooled the cpu through heat transfer. I was really trying hard to get it to get so hot that it would turn off. But, it never did. Nor has it ever turned off on me since 2007 when I bought it. Oh, and my sister called me on Skype, and we did a video chat. Although, the 4500 RPM Left fan only running, made a static noise she mentioned. Just to test it the beast further, I even opened up Google Earth, zoomed in a little bit so the entire globe was in the window.... Then I spun the globe so it would continue to spin forever. Yeah, I did it. I began to wonder, how many programs can I open while all of this is going on? So, I explored the infinite options available to me, and opened every single program I have. MS Word, Numbers, I even watched a powerpoint presentation, a video in adobe media player, a video in itunes all while the Wondershare video converter working tediously, Safari was watching flash videos, and google earth was spinning. Immediately switched over to www.freestockcharts.com running Microsoft Silverlight and scrolled out and in on the daily charts... flash videos still running on safari. Went to a safari java enabled program called streetsmart.com. I even took a nap.

Before this test, the max that I've seen the CPU Temp was 208 F/ 97.7 C for about 2 hours. Then, I replaced the thermal paste after 4 years of continuous use. Thanks Apple for making a device that is designed to run for over 5 hours at temperatures of around 200 Degrees Fahrenheit / 93 C. I know it probably could have continued for longer, but that's all I needed it for. There are no problems with the temperatures in the macs. When you ask the mac to do something it requires energy. When you call upon it to do something that requires a lot of energy, it can get hot. Let it vent, let that air flow... Give it some flow. It'll be fine. Everything is going to be ok.
 

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I guess increasing the ODD fan rpm a bit via smcfancontrol or istat to cool down the GPU is the only thing that can prevent premature GPU death due to heat. I rather have the fan died then the GPU :(
 
I have a (refurb) iMac 27" 3.1 w/6970M and after about 3 hours of use (lots of web surfing, music, Skype, along with a few other apps open in background), iStat is showing :

CPU - 46c
Ambient - 21c
GPU Diode - 62c
GPU Heatsink - 57c

So far I haven't noticed temperatures to go all the way up to 78-80 on idle. I'll have to check out those numbers once again though after playing some windows games via bootcamp.
 
They say no pic = it didn't happen LD .. so here is screenshot of my iStat widget ..

Image

You see .. CPU is idle, I don't do anything intensive for hours, and GPU diode and heatsink temp going crazy !! .. Other temp is normal, but GPU is baked !!

What is wrong with Lion?? Do you experience the same problem? Please share :)

Never had this kind of temp while idling on SL .. it used to be 40 - 50C .. this temp is just like when I play heavy games during bootcamp windows. Quite surprising for an OSX !!

If you don't mind post your iStat screenshot on Lion

72/64 degrees here - I don't think it was any different from SL. These temperatures are perfectly normal for the GPU diode and heatsink (in fact, they are usually the highest temps reported by iStat).
 
My 2011 iMac has shut down twice by itself due to overheating. I was watchign some Youtube videos, but I have Youtube doing HTML5, so it isn't Flash. I've finally installed iStat. Are these "normal" temperatures?

How many degrees does it take to get to before the iMac will shut itself down?
 

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My 2011 iMac has shut down twice by itself due to overheating. I was watchign some Youtube videos, but I have Youtube doing HTML5, so it isn't Flash. I've finally installed iStat. Are these "normal" temperatures?

How many degrees does it take to get to before the iMac will shut itself down?

If this is Fahrenheit, probably normal...if it's Celsius, I don't even know how it could continue to work... ;)
 
I've noticed that the only time my GPU temperatures increase to 70+ celcius is when I have iTunes open and is actively performing a task (I.e. playing music, store, app updates etc.). Also, before I upgraded to iTunes 10.4 I never had these temp spikes.
 
Something I've noticed, well at least on my own iMac.

I've noticed that the high GPU temperature isn't entirely Flash's fault. I've noticed that from a fresh startup and waking up from sleep, the GPU temperature is where it should be. In both of these instances, I ran a Flash video off YouTube, in standard size and in full screen and saw the GPU temperature rise as expected, around 70° C. After closing the Safari window that was running the video, the temperature dropped and went back to normal after a few minutes, around 55° C.

A little while ago, during very light usage without Flash, the GPU temperature was as high as 70° C. The temperature was checked after three hours of consistent use. I put the iMac back to sleep for a minute or two then woke it up and checked the temperature. Currently, the GPU temperature is hovering around 55° C.

My current hypothesis about what's causing the GPU temperature to be so high is a combination of prolonged usage and Lion thinking that it has a process that requires heavy use of the GPU. In other words, once the GPU reaches a certain temperature, it stays there even though it should have gone down a while ago. It seems that the only remedy so far is to restart or put the Mac to sleep for a minute or two. This is completely unnecessary as this issue is a bug that can and should be fixed in an update.

Since we're on the subject of temperatures, I have another temperature concern. I have noticed that the hard drive temperature is running hotter in Lion than in Snow Leopard. Though, the difference in temperatures is not as drastic as with the GPU, the overall rise in system temperature is still concerning. Currently the hard drive temperature is around 47° C with light use in Lion. In Snow Leopard, I would expect to be around 42°-43° C with the same load. Has anyone else noticed this with their hard drive or other temperatures?
 
My HDD is also hovering at 47 degrees.

These are my values right after playing SC2:

EDIT: It was actually higher. By the time I took the pic, it had dropped a few in some areas, like the GPU Diode was low 70's.
 

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I cant remember other component's temp when I still use SL, but I think hdd, cpu and psu temp in Lion seems normal, maybe a bit increased but not really different.

OTOH the gpu heatsink and diode increase significantly that I notice them quickly. Yeah when I put my iMac to sleep before bed and then wake it up again in the morning, use it around 1 hour or so, GPU temp seems to be lowered to around 60C

In SL, GPU indeed always having the highest temp among other. But not really this high for sure, especially when you're not gaming or doing something intensive (i.e browsing, chat, listening itunes)
 
Interesting. When I clean installed Lion on Friday, I went to Youtube and it wouldn't play, said my Flash needed to be updated and took me to Adobe's site and I updated as requested.

No temp issues on my 2010 27 i3 iMac? Same as on SL.

Maybe go to Adobe's site and install the latest flash update and see what happens?
 
Wow, you can fry an egg with your power supply! :eek:

Yeah =T What are more normal temperatures for the power supply?

Does it matter that it's connected to one of those mag-safe power supplies? It doesn't go directly into an electric plug. It's one of many others that goes into a mag-safe line of plugs.
 
Interesting. When I clean installed Lion on Friday, I went to Youtube and it wouldn't play, said my Flash needed to be updated and took me to Adobe's site and I updated as requested.

No temp issues on my 2010 27 i3 iMac? Same as on SL.

Maybe go to Adobe's site and install the latest flash update and see what happens?


Flash has not been updated for Lion and still remains the same version as the one since Snow Leopard.


Yeah =T What are more normal temperatures for the power supply?

Does it matter that it's connected to one of those mag-safe power supplies? It doesn't go directly into an electric plug. It's one of many others that goes into a mag-safe line of plugs.


Doubt it. The iMac's power supply is built into the iMac. In fact, follow this link to iFixit's teardown of the current iMac and you can see the power supply, it's to the left of the hard drive and above the CPU heatsink. This is how Apple got around shipping an a transformer attached to the power cable.
 
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Does anyone know if the 10.7.1 update solved this problem? Or was it a flash related issue and an Adobe update sorted it?
I'm still on SL and I'm reluctant to go to Lion if it's going to heat my GPU! Cheers.
 
Does anyone know if the 10.7.1 update solved this problem? Or was it a flash related issue and an Adobe update sorted it?
I'm still on SL and I'm reluctant to go to Lion if it's going to heat my GPU! Cheers.


I updated my iMac to 10.7.1 earlier today and so far the GPU temperature is cooling off as expected. In other words, when the GPU gets to 70° C with a load, it comes back to around 52° C as expected, once that load is gone. However, the overall system temperature is still slightly above what is expected in 10.6.8 Snow Leopard. Nothing to worry about as it's still well within tolerance and only a few degrees in increased operating temperature.
 
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