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Mid 2010 Modell A1278 / 2,4 oder 2,66 GHz Core 2 Duo Prozessor

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Apple hardware test Failure code...

After running a aht it gives an error : 4SNS/1/40000001: VP0R-0.000

what is the exact problem in this logic board. System is very slow . i already dismantle 3-4 times some time after assembly it works for little time means working until restart. after restart it again giving same problem.

Beantwortet! Antwort anzeigen Ich habe das gleiche Problem

Ist dies eine gute Frage?

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If i Plug the Charger in then the laptop works fine no problem. while on charger also AHT gives same error . What to do??


I see two possibilities; use it as is, or, replace the logic board.


What did you do in the end ? I have exact same problem. Dont no weather to get fixed or not ?


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Gewählte Lösung

Run the extended version of the Apple Hardware Test. Sometimes you will get an error if you run the quick version, and it may be something of a false positive. Some have found doing an SMC reset 3 or 4X can eliminate the error (note: a work around not a fix). If it is indeed a logic board error it points to a sensor(s) failing, VPOR might be VGC(VPU) related. You'll probably need a new logic board, AFAIK sensors as well as the VGC are soldered to the logic board which pretty much makes them non-DIY repairs, as soldering on logic boards are not for amateurs.

If this answer was helpful please remember to return an mark it Accepted.

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i already done SMC or PRAM, can you locate the specific sensor which creating this problem ? thanx in advance


Nope - looked but "best guess" was all I could offer.


it was the error of sensor on the logic board . i replaced the logic board


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SIMRAN wird auf ewig dankbar sein.

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