Model A1181: 1.83, 2, 2.1, 2.13, 2.16, 2.2, or 2.4 GHz Core 2 Duo processor

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After Fan replacing its still not working

One day i just started my Macbook to do some office work works fine for half an hour but then it suddenly turns off. My first tougth was the RAM so i changed it but that still dont make it better. When i press the power button i hear the optical drive and the harddrive but no fan so i opened the keyborad and press the power button and the fan dont turn so i ordered a new one and replaced it. When i now let the keyboard open and press the power button the fan only makes an half turn and its still be out.

got anyone an idea whats wrong with my device ?

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I tryed that with the RAM but it dosen´t work the only new thing is that the screen ligths up white for just a sec after i turend it off


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Could be a faulty replacement fan, a faulty thermal sensor, or a logic board problem. Run your Hardware test disk 2 or 3x (sometimes it doesn't recognize a problem when you only run it once). You might force the fan to come on and run via a 3rd party fan application, but that will shorten your battery life.

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Do you get a light on the screen, or is the screen black? A1181s commonly develop a bad RAM slot, and machines usually behave as you describe when the bad slot is populated. Power on with one slot empty, and if that doesn't help, power on with the other empty.

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No the screen is still black i will try that with the RAM slot


When the "bad slot" issue occurs, typically the screen will be black, the sleep light will pulse, and you won't hear a chime.


the sleep ligth doesnt pulse i have also seen that the PRAM battery connector is not correct connected


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Originally your machine overheated. Your cause for the overheating was a faulty fan. The machine shut down to preserve itself from damage. Until you replace the fan you are going to continue to do damage to a new or old motherboard.

These machines are known for video and overheating related issues.

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