Late 2009 iMac freezes with 10.11.5

joscejrod

macrumors 6502
Original poster
May 16, 2015
362
182
Hello guys,

My iMac has suffered ramdon freezes the last weeks. I brought it to an Apple Store. They reinstalled the OS completely and they told me that hardware is ok. So what's the problem?
Sometimes it freezes while I'm using it, with a spinning wheel, other times, when the mac enters to sleep mode (only screen off), it's impossible to wake it up. The screen now in on, but only shows black color and a spinning wheel. All times, I have to force restart...
 

MrNomNoms

macrumors 65816
Jan 25, 2011
1,130
249
Wellington, New Zealand
Hello guys,

My iMac has suffered ramdon freezes the last weeks. I brought it to an Apple Store. They reinstalled the OS completely and they told me that hardware is ok. So what's the problem?
Sometimes it freezes while I'm using it, with a spinning wheel, other times, when the mac enters to sleep mode (only screen off), it's impossible to wake it up. The screen now in on, but only shows black color and a spinning wheel. All times, I have to force restart...
As the person above me noted it could be the GPU but I'd also see whether it is the hard disk considering that the computer is 7 years old so I wouldn't be surprised if the hard disk is closed to dying.
 

joscejrod

macrumors 6502
Original poster
May 16, 2015
362
182
Could it be an app that crashes the system? Maybe transmission?
 

grahamperrin

macrumors 601
Jun 8, 2007
4,942
643
… Apple Store. They reinstalled the OS completely and they told me that hardware is ok …
How long was spent determining whether the hardware is OK? Did you leave it at the store for a few hours?

If it's a hard disk drive, and if that disk appears to be OK, then you can use the key chord for sysdiagnose to help diagnose problems involving software.
 

joscejrod

macrumors 6502
Original poster
May 16, 2015
362
182


How long was spent determining whether the hardware is OK? Did you leave it at the store for a few hours?

If it's a hard disk drive, and if that disk appears to be OK, then you can use the key chord for sysdiagnose to help diagnose problems involving software.
Yes, the computer was at the apple store 2 days. They told me that they had checked the hardware completely, and all was ok. Could you explain me how to use that app? Maybe 10.11.5 has bugs?
 
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