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Computer doesn't start after cleaning

Hello, I have an issue with my MacBook mid 07.

My computer was running slow and encountering a lot of failures. So, I thought, I would give it an internal clean and reapply thermal compound to the CPU. (I've taken apart many machines in the past, and have a strong technical knowledge of computers). I removed everything from the base casing, and cleaned everything with a cotton swab and rubbing alcohol. After rebuilding, my machine will not start under any circumstance. If I plug in the MagSafe charger, I get two flashes of green then a solid green, as if the battery is fully charged, even after completely removing the battery. The machine does not start on battery alone either. I notice, that while plugged in, the area an components located left of the CPU get extremely hot over time. Did I damage the logic board upon maintaniance, or is there still hope for this machine? Any thoughts are welcome. Thank you.

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Damage is always a possibly - I would suggest you go over all your connections again. Many times reassembly issues trace back to a connection that was incomplete.

Next thing would be to try an SMC reset.

If this answer is acceptable please remember to return and mark it.

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3 Comments:

i took everything out of the case, and discovered that wiggling the magsafe, and holding the power button, i could get the fans to rev. any other ideas

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Julian Gray - For future reference you posted a Comment in the place where only Answers belong. Please use the add comment link to the appropriate Answer or update your O.Q..

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Replace the DC-in board?

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