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Hello . I just purchased macbook air a1237 model. Looks like it is missing screw post and screw located between cpu’s .This screw is holding heat sink as well cpu bracket (v shape ) . Is there way to buy missing post for the screw or fix that some how ? Looks like this mac is overheating now and turns off after few min . See pic below on link http://forums.appleinsider.com/t/151696/

Try contacting iFixt directly if no one else pops up with the part. ‘‘If this answer was helpful please remember to return an mark it Accepted..

If the heat sink is loose, and if a thin coat of thermal paste is missing those could be the causes of your overheating. You could try contacting iFixit directly to see if they have the part. If this answer was helpful please remember to return an mark it Accepted.