2010 IMac 2.93 i7 - Random shut-down?

[gotanimac]

Hi all - Last night I experienced a weird problem.

My iMac randomly shut-down while I was browsing the web, no blue screen or anything just a shut down... and I rebooted and it did it again about ten minutes later.

Any reason which would cause this behavior...?

 

[symbology]

I had an issue with mine coming out of sleep mode, it would often just go back to sleep within seconds.

After performing a SMC reset the problem went away. Give it a try.

http://support.apple.com/kb/HT3964?viewlocale=en_US

 

[wirelessness]

This sounds like it could be a heat related issue. If any of the 3 major fans are not working properly the sensors could read too high of a temp and automatically shut down to save your hardware. Load SMC Fan Control to see what the temps are and that the fans are running as needed.

Even still I would take it in to be looked at since it's so new.

 

[gotanimac]

can i just show up at an apple store and they'll look at it?

 

[symbology]

Call and make an appointment with a Genius.

 

[rworne]

can i just show up at an apple store and they'll look at it?

They won't do anything if they do not see the problem. Did anything ususual appear in the logs? Are the shutdowns occurring with greater frequency?

I have the same i7 iMac you do, and I went through hell with an iMac G5 that showed similar problems to yours.

 

[gotanimac]

known issue with 16gb of ram:

http://discussions.apple.com/thread.jspa?threadID=2548180&start=0&tstart=0

 

[Unfair]

Yea - was having the same issue. Taking it down to 12gb of RAM solved it.
Now if I can just figure out why ever song skips in iTunes and I get random 'beachball' freezes at random. My iMac will finally be usable!