SMC corruption causes : Power Surge ?

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SMC corruption causes : Power Surge ?

I went thru all the how to, when to, do SMC Reset... still that does not tell us the causes.. what causes it, how do I fix it ?

SMC reset works, sure... but for a few times then have to do it again.. Havent been able to isolate the issue.. only 'when to d SMC reset" well obv. having botting up issues there isnt' much of an other trick to get machine to power up .. anyway Im still trying to figure otu what is causing it, not how or when to do it !

That Ive learned easily

Wikipedia SMC reset page says this about SMC corruption causes :

This is due to the fact the SMC may become corrupted over time and not respond properly to certain requests. This sort of corruption can be triggered by a power surge.

* I noticed most of the times comp wont turn on happens after a night's sleep when it's been off and plugged in wall socket with AC adapter

MacBook Pro, Mac OS X (10.6.8)

Posted on Jul 28, 2013 12:45 AM

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Answer 1

ds store

Level 7

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Jul 28, 2013 3:31 AM in response to teoruz

Get a surge protector.

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Answer 2

teoruz Author

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Jul 28, 2013 4:08 AM in response to ds store

if that's one of those extension with multiple sockets , splitter it's plugged into one of them

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Answer 3

ds store

Level 7

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Jul 28, 2013 4:39 AM in response to teoruz

Those can be like that, but without the surge protection aspect at a lower price point and people pick up those instead of a real surge protector.

Also if you have too many devices drawing power reducing the power to the Mac, or one device on the line (like a A/C) that kicks in and draws a lot of current causing surges, that can cause issues as well.

All electical devices have stickers or information how much current it draws, just don't go over that for your line from the circuit breaker.

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Answer 4

nbar

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Jul 28, 2013 4:41 AM in response to teoruz

Why powersurge could result in SMC failure:

Logic board = collection of chips & circuits. SMC = System Management Controller, component of logicboard.

Power surge >>>> blown circuit. Blown SMC circuitry = Broken SMC.

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Answer 5

teoruz Author

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Jul 28, 2013 4:43 AM in response to ds store

Ok thanx for that , have to check which ones I have here 🙂

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Answer 6

teoruz Author

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Jul 28, 2013 4:53 AM in response to nbar

You saying may be logic board ?

machine seems to run fine other than occasianl kernel panic when i have a lot of thngs running at same time.😕

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Answer 7

nbar

Level 5

7,019 points

Jul 28, 2013 5:01 AM in response to teoruz

No, not at all. Sorry for the ambiguity. I am not diagnosing your problem at all, I was just answering the question of why a powersurge could potentially cause SMC failure.

Could this be the case? Yes. Is it likely, at all? No.

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