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Freezes, if not plugged in

Hi after a few minute's use my MBP freezes if it is running on battery. However it can run for days if it is plugged in (with or without the battery installed).

The original battery warped, and was replaced by Apple, the second battery died after about 18 months and the machine has been happily running of 3rd party replacement battery until now. The battery is holding charge.

You help is greatly appreciated

Thank you.

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I would check for swelling on this one too. Also download and run Coconut battery to see just what's going on with it and just how much of a charge it's taking: http://www.coconut-flavour.com/coconutba...

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Well there's just not that much between the battery and the logic board that it could be. The only thing is the battery connector. If it's not that I would think it has to be something on the logic board. Anyway the part is under $10 and it's a shot: w.ifixit.com/MacBook-Parts/MacBook-Pro-17-Inch-Models-A1212-A1229-Battery-Connector/IF187-056

Make sure this will work on your model!

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The only other thing I can think of is that the overheating is causing the fans to draw so much power that it's shutting down. I've seen these machines with 70% blockage of the vent ports by the heat sink. It's a major effort but at this point may be necessary. Open it up, remove the logic board clean out the vents, reapply thermal paste and blow out the fans. To get you to the correct guide please give the last three letters of your serial number. Thanks

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The last three digits of serial number are "TJ1". Do you think the problem could be the logic board itself? if so can you please recommend the right part for that as well.

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Apple MacBook Pro "Core Duo" 2.16 17" Specs

Identifiers: MacBook Pro 17-Inch - MA092LL/A - MacBookPro1,2 - A1151 -

Here's the correct cable: MacBook Pro 17" (Model A1151) Power Cable

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The logic board is Apple Part #: 661-3977

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Battery seems to be fine, no cosmetic problems. Coconut shows 30.6C temp for the battery and 5357mAh capacity.

Freezing problem is more frequent if the machine is hot. However if it is hot AND running on AC power it does not freeze. Everything else seems to be working fine.

Thanks

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Ali Jaffery será eternamente grato(a).
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