Hello!
My 27" iMac (late 2009) is making a lot of noise for the last few months. The noise doesnt occur when you start up, but after you do something what is not really intensive for the computer suddenly the CPU fan is going up to about 4000 rpm. I have tried resseting the PRAM and the SMC but it won't help. I have inserted an image so you can take a look for yourself!
Kind regards,
Emiel
iMac, Mac OS X (10.6.8)
I thought i had inserted the image, well apperently not.
Here is a link to the image:
Hi. Follow the troubleshooting tips in the article below.
http://support.apple.com/kb/TS1473?viewlocale=en_US&locale=en_US
I followed the instructions.. But there was no process with a high usage.
Try resetting the iMac SMC and PRAM reset again, this time do each reset 2x. On occasion the first time does not work, but if it continues to be noisy then you probably have a mechanical problem and the fan may need replacing.
I tried what you said rkaufmann87, but unfortunately it did not work.
Next week i will be bringing it to a repair shop and let it repair.
I think it might be the LCD panel, because when the computer is warmed up and you restart it you say a big stain on the screen.
Thanks for the help!
Let us know what it turns out to be.
Okay it turned out that the Motherboard and the Display where broken, i believe my dad said that the cpu cooler caused the problem (but im not sure). I will not get it repaired because it is way too expensive (about 1300 euro's). I think this should not happen to Apple products which are not even 2.5 years old..
Sorry to hear that. Unfortunately you chose to not purchase AppleCare, had you this would have been covered. I agree it should not have failed but any machine can fail at any time.
I had the same problem which was idenfified as either the hard drive, a cable or the logic board ( this is the motherboard).
after changing the cheapest item first the cable and then running diagnostics until it reoccurred it eventually turned out to be the logic board. The most expensive bit.
my applecare paid for it otherwise I could not have had it repaired.
Why are you resurrecting these old therads?
I am replying because a search engine brought me here and it has only just happened to me September 2012 and I got the correct diagnosis unlike all the posts that suggest a smc reset is the answer.
Well after a lot of trouble, I got it replaced.
Both the display and the logicboard!
Why is my iMac's CPU fan making a lot of noise?
