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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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MacBook doesn't start up

Hi guys i need some help..

after two weeks living without airport and ethernet (i don't know why they fail) my mac doesn't start up, i push the power button and i only see the status led and the display turned off.

the heatsink quickly warms

i tried many things:

i tried to reset the pram and nvram, reset the pmu, change the rams (when i try to turn on the mac without the ram the led blinks), unmount the airport, connect an external display and nothing works

any suggest ?

thanks in advance

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Please tell us about all lights or sounds you get.

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i can hear the optical drive and the hdd but it doesn't chime, and i can see the magsafe green led and the status led turned on

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1 Answer

Try one stick of RAM in each of the slots, then do the other one. You're looking for a bad stick or a bad RAM port. Press the caps lock button and tell us what happens. Hows the LED of the MagSafe AC adapter?

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i did that with four sticks, but nothing happens when i hit the caps or num lock and the magsafe led is always green

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This could be the Nvidia GPU issue. Please give me the last three letters of your serial number. You may qualify for a free logic board replacement.

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my macbook is the mid 2007 model so it have an intel gma 950 gpu

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