Currently Being ModeratedJul 28, 2012 3:53 PM (in response to felice1914)
No, that is not normal. Is it hot and humid? Try putting a small fan near it to keep it cooled and also make sure it isn't so close to the wall that it isn't able to vent properly.
Currently Being ModeratedJul 28, 2012 5:41 PM (in response to felice1914)
Since I first noticed this problem I have been directing a fan against the aluminum back. Here in New Mexico 20-30% humidity is considered high. The computer is about 18" from the wall. I guess I should look for service around here.
Currently Being ModeratedJul 28, 2012 8:09 PM (in response to felice1914)
If you look on Google for an app callled: smcfancontrol - this gives you control over the speed of the internal fans, you can increase them and it will cool your Mac right down.
Currently Being ModeratedJul 30, 2012 7:47 AM (in response to megalaser)
I did download smcfancontrol. Unzipped it as instructed, moved it to the applications folder. Now it seems to just sit there. It doesn't open to the control panel shown on the download page. But when I move it to trash, it says it is open.
If the fan is running I can't hear it & the computer is as warm as always.
Currently Being ModeratedJul 30, 2012 7:49 AM (in response to felice1914)
You are not installing running SMCfancontrol correctly, you need to install it and run it, once you have installed it you see it's icon and control it from the top menu bar. You need to do this, it is the only way to stop your iMac overheating, it's the most important application I have because my iMac would melt without it.
Currently Being ModeratedJul 30, 2012 7:51 AM (in response to felice1914)
As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
- Shut down the computer.
- Unplug the computer's power cord and ALL peripherals.
- Wait 15 seconds.
- Attach the computers power cable.
- Wait another 5 seconds and press the power button to turn on the computer.
- It is the 5 second timing that initiates the reset.
Here is a link to a Widget to monitor your temps and other operations:
Currently Being ModeratedJul 30, 2012 7:52 AM (in response to felice1914)
Sounds to me like you have it running but are unaware of how to control it, look at the top menu bar and you should see it there with the temperature and underneath, the fan rpm, click on it, choose preferences and increase your fan speeds to around 3000rpm on each one and hit save. You will then hear your fans speed up and get louder and your mac will cool down.
Currently Being ModeratedJul 30, 2012 7:54 AM (in response to felice1914)
My iMac is only slightly warm at the back, without SMCfancontrol running it gets so hot I cannot touch it. It's nothing to do with dust.
Currently Being ModeratedJul 30, 2012 6:12 PM (in response to megalaser)
I'm glad you live in a dustfree zone. Without regular maintenance (cleaning) you are just asking for inexplicable problems and a shorter system life.