Currently Being ModeratedFeb 6, 2013 5:05 AM (in response to RaphaelG)
Start up fromyour install disc and run Disk Utility to check the SMART status of your hard drive, then repair the drive. The periodic freezes sound more like a hard drive problem to me that a ram problem.
Currently Being ModeratedFeb 6, 2013 5:19 AM (in response to Mike Sombrio)
Thanks Mike for trying to help !
I forgot to mention that I already did that, and also booted in hardware test mode and did the 2 tests.
I believe Onyx checks the smart status of the HDD as well.
Currently Being ModeratedFeb 6, 2013 7:40 AM (in response to RaphaelG)
First I wouldn't put so much faith in Onyx, just my opinion. Next I would run Activity Monitor for awhile while you use your MacBook to see if you can figure out what's eating up your system resources. http://support.apple.com/kb/HT1342
Currently Being ModeratedFeb 7, 2013 12:40 PM (in response to Mike Sombrio)
I actually did that too.
Problem is, the activity monitor freeze like every thing else and doesn't display the incriminated process.
Currently Being ModeratedFeb 7, 2013 3:19 PM (in response to RaphaelG)
I would make an appointment and take it to the genius bar. I still think it smells of hard drive problems. Do you have an external drive you could install ML on and run off the external to test?
Currently Being ModeratedFeb 7, 2013 3:20 PM (in response to RaphaelG)
What about creating another user account and seeing if the problem persists under the new user?
Currently Being ModeratedFeb 11, 2013 5:41 AM (in response to Mike Sombrio)
thank you for your ongoing help !
I didn't try to create another account as the macbook is very slow right from the start up, well before the logging screen shows up (very slowy too ).
I will try to find another external harddrive (I use mine to back up my data). You mean Mountain Lion I guess
(Since the big cleaning / removing / Onyxing, the macbook is still freezing at weird time and very slow to startup but it got better)
Edit : understood something and corrected my message.
Currently Being ModeratedJun 11, 2013 3:27 AM (in response to Mike Sombrio)
As a follow up, I have been working with a fresh install on a USB drive and the MAC is working nice.
I am buying a new HDD today and swapping it.
It is a bit early to be sure that it was actually the problem as when I did fresh install it was always working ok for a few weeks. But I am confident this was the source of the problems.
Thanks for your help. Despite my years as a sys admin I would never have guessed that such an eratic behavior would come from the hard drive.
Currently Being ModeratedJun 11, 2013 4:51 AM (in response to RaphaelG)
You might consider installing an ssd instead of a spinning hard drive, they're wicked fast!
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