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My MacBook Pro won't start- 3bleeps

Hey. My MacBook is a 15" pro late 2008 non unibody, I haven't replaced the ram but the MacBook will no longer start up, I just get 3 bleeps, I have tried swapping the ram and the screen just stays blank, no backlight, nothing, when I put them back in the original position I get 3 bleeps. Does any one have any tips or advice that I could try, cheers.

MacBook Pro, Mac OS X (10.7)

Posted on Apr 18, 2013 11:00 AM

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Posted on Apr 18, 2013 11:01 AM

Either the RAM no longer works properly and needs to be replaced, or an attempt was made to start up the computer from a Mac OS X version too old for it or damaged.


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My MacBook Pro won't start- 3bleeps

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