Q: Have a 2010 27" recently purchased that gets very hot

2.93 GHz intel Core i7 - has 16GB RAM and a 2TB HD

Wondering if the RAM could be making it hot? Or the HD? Or the chip ...

http://bit.ly/1GMZB7H

thanks,

iMac, OS X Yosemite (10.10.3), intel quad core

Posted on May 14, 2015 3:51 PM

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Mike Sombrio

Level 6 (17,283 points)

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I would think that by running them at speeds that high ALLthe time would have to shorten their life. Depending on what you're doing at the time that screen shot was taken your temps don't *look* extremely high to me. Your GPU seems a bit high and so does the HDD but again it's totally dependent on what you're doing at the time. You could have some dust build up inside your iMac, you could have the beginnings of a hardware problem or more likely you don't have any trouble at all. I can't tell you if yours feels hotter than mine, mine gets plenty warm and I just let the fans run as they normally do. I also don't use my hard drive as a boot disc so mine will be cooler than yours. Your BEST OPTION is to make an appointment and take your iMac in for a free diagnostic. Tell them that you think it' stunning hot and let them take a look at it.

Posted on May 17, 2015 8:25 AM

Q: Have a 2010 27" recently purchased that gets very hot

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by Mike Sombrio,

Mike Sombrio May 14, 2015 4:00 PM in response to LCSterling
Level 6 (17,283 points)

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May 14, 2015 4:00 PM in response to LCSterling

iMacs can get quite warm, especially when working hard. Gaming, video and graphics intensive apps cause high heat. Have you installed a temperature monitoring app to see just how hot yours is getting? Post your specific temps and we can see if they're out of line.
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by LCSterling,

LCSterling May 14, 2015 4:12 PM in response to Mike Sombrio
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May 14, 2015 4:12 PM in response to Mike Sombrio

Hi -- I do not yet have a temperature app but will get one.

I don't use any intensive programs or apps. Mostly Google Chrome and Office for Mac.
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by Linc Davis,

Linc Davis May 14, 2015 4:15 PM in response to LCSterling
Level 10 (208,037 points)

Applications

May 14, 2015 4:15 PM in response to LCSterling

Apps can affect Mac performance, battery runtime, temperature, and fan activity - Apple Support
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by LCSterling,

LCSterling May 14, 2015 4:29 PM in response to Linc Davis
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May 14, 2015 4:29 PM in response to Linc Davis

(this is for an iMac)
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by LCSterling,

LCSterling May 14, 2015 4:29 PM in response to Mike Sombrio
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May 14, 2015 4:29 PM in response to Mike Sombrio

The range of apps for temp monitoring are confusing and lots of folks have posted lots of warnings about them.

Do you recommend one?
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by Mike Sombrio,Helpful

Mike Sombrio May 14, 2015 4:37 PM in response to LCSterling
Level 6 (17,283 points)

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May 14, 2015 4:37 PM in response to LCSterling

I use iStat Menus.
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by LCSterling,

LCSterling May 14, 2015 4:45 PM in response to Mike Sombrio
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May 14, 2015 4:45 PM in response to Mike Sombrio

Reading up on all the links this subject brings up makes me wonder if there's an issue with the fan?
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by Linc Davis,Helpful

Linc Davis May 14, 2015 4:56 PM in response to LCSterling
Level 10 (208,037 points)

Applications

May 14, 2015 4:56 PM in response to LCSterling

Yes, I know. The article is applicable to all Macs.
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by LCSterling,

LCSterling May 14, 2015 4:57 PM in response to Linc Davis
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May 14, 2015 4:57 PM in response to Linc Davis

Sorry - I saw "battery" and assumed ...
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by LCSterling,

LCSterling May 14, 2015 5:00 PM in response to Mike Sombrio
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May 14, 2015 5:00 PM in response to Mike Sombrio

iStats is pretty complex and confusing - seems to say it's running at 72 degrees ... but the top rear is quite hot to the touch.

Really not sure what I'm looking at yet ...
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by Mike Sombrio,

Mike Sombrio May 14, 2015 6:57 PM in response to LCSterling
Level 6 (17,283 points)

Apple Watch

May 14, 2015 6:57 PM in response to LCSterling

The top rear, especially the top left get very hot to the touch. The power supply is at the top left and it generates a lot of heat. The exhaust vents are also located on top....and heat rises. iStat gives you temp sensor information as well as fan speeds. Unless you're showing abnormally high temps or a fan that isn't working it sounds normal from what you're saying. I know it's difficult to lug around but you can always take it to the nearest Apple Store for a check.
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by LCSterling,

LCSterling May 15, 2015 8:42 AM in response to Mike Sombrio
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May 15, 2015 8:42 AM in response to Mike Sombrio

Something occurred to me last night that should have occurred to me sooner. I got this iMac in mid-March. And for the first few weeks I had the impression that the hard drive was very noisy. It's a 2TB Toshiba that's not original.

In recent weeks the noise has gone away and the heat emanating from the case seems to have increased.

Now I'm wondering if a fan is malfunctioning. This may require a trip to the Apple Store.

But will see if I can get more information from iStats.
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by Mike Sombrio,

Mike Sombrio May 15, 2015 9:03 AM in response to LCSterling
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Apple Watch

May 15, 2015 9:03 AM in response to LCSterling

Check out the temps and fan speeds with iStat. Also you might want to run the Apple Hardware Test to see if it reports an error Using Apple Hardware Test - Apple Support If your iMac originally shipped with install discs you'll need that set of gray discs as AHT is on disc 2.
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by LCSterling,

LCSterling May 15, 2015 9:44 AM in response to Mike Sombrio
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May 15, 2015 9:44 AM in response to Mike Sombrio

Hmm ... no discs received.

I have a set of "Everything Else" from an older iMac - you think those would work or should I seek out a set from 2010?
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