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Level 1

22 points

iMac freezes

Anyone know what might be wrong here. At least once or twice a week my 2010 i5 iMac freezes on me forcing me to power off and restart. Today when it happened I noticed that the top of the monitor was scorching hot. I've never paid attention to that before. Could that be a symptom?

I've run verify disk, repaired permissions, used Onyx and the Apple Care tech tools disk and everything checks out ok.

It's never frozen while using it only after some period of inactivity. Any thoughts?

iMac 2.66 i5 Quad with 8 GB RAM, Mac OS X (10.6.2), Nikon shooter

Posted on Jun 5, 2010 5:23 PM

63 replies

libs101

Level 1

0 points

Apr 12, 2012 3:01 PM in response to ducksoup

I'm having same probs. My 2 year old 27"Imac freezes. It started right after my care plane expired. I took it to apple, said my logic board is fried. I paid $100 to retive my data ( my darn external back up drive ws unplugged for a while ). At the time it was completely dead, will not finish boot up, just a white screen and lines. New logic board $1400, lol. I just got a new one for a little more with a super extended care plan. So I start playing with my old broken IMAC, reloaded os and now works almost fine. Only time it locks up is when playing games, even with lowest game video settings. Everything else runns fine, watching DVDs streaming youtube etc... just playing games (wow). I am noticing this one runs hotter to the touch then my new Imac. Heres my plan from this point, any suggestions pls.

Re-paste the heatsink and test fan- if still fails,

Re-flow GPU, last resort Re-ball GPU

Thanks.

Al Thorp

Level 1

8 points

Jul 15, 2012 8:46 PM in response to Ghozer

Well, I found this thread when searching for a reason why my iMac freezes up too. Then I remembered that I had recently plugged in a headphone into the jack on the back side. I removed the headphones and the problem disappeared immediately. Long shot, maybe, but do you have headphones plugged in?

air-ship

Level 1

0 points

Jul 16, 2012 1:11 AM in response to Al Thorp

Yes, I have a jack plugged in that feeds to my amp. Often after mail comes in I hear a click a couple of seconds after the "mail in" sound has played. Almost like the audio card / processor finishing it's task. When my iMac was freezing, this was the sound I heard before the big freeeze! Then I got a screaming / garbled nosie sound like my Mac dying - seriously.

However, I pulled out the Apple supplied 2 x 2GB of ram and left my third party 2 x 4GB intstalled and I've had about two crashes in 14 months.

Apple had me ripping all sorts of things apart etc (including removing hard drives I needed for work). I knew it was none of the things they were suggesting. Eventually I made the decision to follow my own instinct and try the RAM.

Apple were very helpful btw but way off target. I still believe they know there are hardware issues with the iMacs. Not even a software patch can fix them!

iMac freezes