If I reach around the back of the iMac from the front the middle/top/left of the case is extremely hot and can only be touched for a few moments before you have to remove your hand. I'm guessing that as the PSU doesn't have its own Fan that the other fans are kicking in to prevent damage. Temperatures are as follows (give or take a few 'C)įrom what I have read with the exception of the PSU the above temperatures seem normal. Its not always the same fan that is going full pelt and sometimes its more than one.
I have dismantled the iMac to clean out all the fans and air vents.
I have ran AHT on loop and no problems found. Nothing in the iMac had changed prior to this occurring. About two months ago I noticed the Fans starting to get quicker and louder. This machine has been wonderful since I've had it and I love it. I have a 24-inch 2.8GHz C2D iMac Early 2008 Model. I can see that this machine and fans have been discussed many times on this forum I've looked through the Questions here on iFixit and elsewhere but can't find a definitive answer to my problem.
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