Current Position:Home > I have a late 2008 iMac with dual intels and the fans won't come on anymore.  About every 1 1/2 hours, it automatically shuts down to cool off.  Is there any way to manually turn it on?  Or, do they have to be replaced?

I have a late 2008 iMac with dual intels and the fans won't come on anymore.  About every 1 1/2 hours, it automatically shuts down to cool off.  Is there any way to manually turn it on?  Or, do they have to be replaced?

Update:10-11Source: network consolidation
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About every 1 1/2 hours, it automatically shuts down to cool off.  Is there any way to manually turn it on?  Or, do they have to be replaced?

The Best Answer

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I tried that with no improvement.  I think I might have to have the fans replaced.  do you know if this is a particularly difficult procedure?  Something wierd that I've noticed is that if I have a video on for more than several minutes, the fans comes on, and also when I am on a Skype video conference for awhile.  Otherwise, the fan jst doen't come on as the intels heaten up to the point the the auto shut down kicks in...any advise?  This definitely interupts my work!  Thanks for your help and input thus far!