Anything new on temp issues on the 24 IMac's??

Got a question not necessarily an issue and I've researched it quite extensively on the net. Finding ambiguous data concerning this and if possible I'd like the feedback from you folks before calling AppleCare.
After buying my new 24 inch IMac and setting it up, I noticed the aluminum case upper corners and middle upper edge was becoming hot enough to pique my interest. I realized immediately that the aluminum case would be conducting heat more than my older IMac 17 which has the acrylic case.
I was concerned enough to find a temp widget called IStat Pro and download it to physically check the operating temps inside the case as well as the fan speeds.
The temps seem normal and are all in double figures with the CPU average around 50c. The bridges also are in double digits which seem normal enough.
My concern is that the case itself is apparently absorbing a whale of a lot of internal heat and seems to be functioning as a planned heat sink for the unit.
I'm assuming that the engineers at Apple have given the internal temps the thought it deserves and that my worries are ill advised.
I can't explain exactly why this continues to bug me, but as a commercial pilot I'm well aware that heat and avionics are mortal enemies and eventually cause issues in solid state circuits.
I guess what I'm doing here with my post is simply asking if there have been issues reported with the 2.66 IMac 24's and whether there might be a downside to the external case temps as time passes.
Thanks much for any insight into the temp issue. Be aware I've searched the forums and have read what I could find here. Just wondering if anyone has anything new to report.
Dudley Henriques

Intel IMac 2.66 24 inch brand new, Mac OS X (10.5.7)

Posted on May 25, 2009 7:02 PM

Reply
13 replies

May 25, 2009 7:15 PM in response to dhenriques

HI Dudley,

Try resetting the SMC. http://support.apple.com/kb/HT1543

The System Management Controller (SMC) is a chip on the logic board that controls all power functions for your computer. If your computer is experiencing any power issue, resetting the SMC may resolve it. The SMC controls several functions, including:

Telling the computer when to turn on, turn off, sleep, wake, idle, and so forth.
Handling system resets from various commands.
*Controlling the fans."*

Might want to read this thread: http://discussions.apple.com/thread.jspa?threadID=1453331

More here: http://forums.dealmac.com/read.php?4,2831777,2831777





Carolyn 🙂

May 25, 2009 7:29 PM in response to dhenriques

HI DH,

Check out this thread: http://discussions.apple.com/thread.jspa?threadID=1467276&tstart=0

and here: http://discussions.apple.com/thread.jspa?threadID=1467276&tstart=0

This way you get a better overall idea. If you really think it's running too hot, you have 14 days from purchase to either have it repaired or replaced.

If it were me, I'd talk to an Apple representative about this heat issue. You can Google for this information and it's amazing on how many hits come up.

I just ran iStat on my iMac but it's the 2.66 20"... CPU is 1199 HD 1199 Optical drive 998
But mine never gets hot like you are talking about, warm but not hot.

I'm not running any CPU intensive apps for those numbers. May climb a tad when I have iTunes running....





Carolyn 🙂

May 26, 2009 11:45 PM in response to dhenriques

It's very normal for the back top area of the iMac to feel hot as that is where the CPU and Power Supply reside. Some tips would be to make sure its not in direct sunlight and if it's in an enclosed area like a cubicle type desk then you might consider placing a small fan behind it for more air circulation. Keep the bottom vent area clear of obstruction and check the round vent in the back above the power cord for dust every once in a while. from what I can tell Apple has increased the minimum fan speeds a bit on the newer iMacs to help keep the hard drive cooler so you should have less to worry about. I would recommend adding the Power Supply temp to the iStat list as it has the tendency to get hot.

George

May 27, 2009 12:33 AM in response to dhenriques

@dhenriques

No, there is no problem with your iMac. iMac's are constructed internally more like notebooks than traditional pc cases, which is what makes it possible for them to be so slim. And as we know, notebooks tend to get warmer than standard desktop pc's. There simple isn't enough room inside them for proper air circulation.

So, as long as your iStat temps and fan speeds are in the range posted before, your iMac is perfectly well.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Anything new on temp issues on the 24 IMac's??

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