iMac 2010 freezes after sleep

[pcw]

Hi,

I've started noticing that my iMac freezes after I have left it on over the night. When I turn my iMac on the clock is displaying some time on the evening when I last used the computer. What is weird though is that when I go into the Console app and check the logs I can see that the backup daemon has been running successfully during the night.

Out of the vanilla iMac I had installed 4GB extra of ram, which I have removed now and still the same freezes occur. Also I have Installed an SSD (Intel 320 Series 160GB) instead of the standard disk drive. I'm hoping I don't have to open up my iMac again to replace it with the standard disk.

I've tried resetting SMC and PRAM to no avail.

What to do?

 

[pcw]

Anyone?

 

[dhtmlkitchen]

I have the same problem. MBP, Intel 320, and now after emptying Trash, I get freeze upon waking.

What causes that? Better yet, how can it be fixed?

 

[obey908]

If you have lion, it is a common problem. And no fix is out yet, although I've been freeze free for a couple weeks now. Used to freeze everytime I tried to wake up the iMac

 

[dhtmlkitchen]

If you have lion,

I don't. Snow Leopard, 10.6.7.