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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

iMac - Computer keeps shutting off

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Member Since: Jul 10, 2009
Posts: 2
mluna15 is on a distinguished road

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My 17" iMac keeps shutting off at random times! Please help...what is wrong with it? I don't want to take it to the Mac store and pay $$$$. I bought it used.
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Member Since: Dec 12, 2008
Location: Lakewood,CA.
Posts: 52
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Mac Specs: iMac 266ghz, 4gig, 320gigHD, MacBook, 2.4ghz,250gigHD,4gigRam

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Can you give us more info. on the computer ie. from "About this Mac" I believe later 17" iMacs were cooled by fan earlier ones were convection cooled. In any case dust on the inside of the computer may be causing it to overheat and shutting itself down or if it has a fan for the CPU and it quit that would cause it to shut down too. My girlfriends laptop would shut down at random times because dust was pacted in the CPU heatsink like a clothes dryer lint trap . I had to take it to work and use the air compressor to blow it out and it would be fine.

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