메인 콘텐츠로 스킵하기

MacBook Pro 13" Retina Display, 모델 A1502의 2015년 3월 업데이트는 5세대 Intel Core i5 및 i7 프로세서를 포함하며 Force Touch 트랙 패드를 소개합니다.

571 질문 전체 보기

Which chip on logic board can I change to reset SMC

My MacBook is running very slowly, and is basically unusable. Sometimes the fan runs so long and there is the kernel_task running constantly in memory.

My diagnostic at boot (holding down the D key) reveals PFM006 and PPN001 error, both relating to power management and SMC.

I have tried to reset the SMC by holding down the Shift-ctrl-option-power a million times, and that does not help. I put my SSD in my sisters mac which is exactly the same as my mac and it works fine, the SSD from her mac in mine, is the same result (slow). SO I assume it is a logic board issue, or hardware issue.

Which chip is the cause so I can take a look or replace.

Thank you for your help

해당 질문 답변하기 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 0
의견 추가하세요

2개의 답변

가장 유용한 답변

Unplug the battery. Press and hold the power on button for 5 seconds. then hold the battery up again.

해당 답변은 도움이 되었습니까?

점수 3

댓글:

Thank you, but this did not work. I do think it is a hardware issue.

의 답변

Well that does work, so you have something seriously wrong.

Consider a Depot Repair from Apple. You can get that if it has not has a major impact or liquid damage. Total cost with tax and shipping in Texas is $357. Call 1-800- MYAPPLE to request it. Total time is 4 days.

의 답변

의견 추가하세요

I had the PFM006 error, too. Fans were rotating at maximum speed, process “kernel_task” was around 500%. This happened after a battery replacement.

The trackpad cable had a very small damage. Therefore, its sensor weren’t able to report their status (palm rest, temperature etc.). So, the system thought there was a temperature issue and fired up the fans. But this didn’t help (still no response from the sensors), so the kernel restarted over and over.

After implementing a new Trackpad cable everything returned to normal. “SMC” was just fine all the time - the error code was misleading in this case.

해당 답변은 도움이 되었습니까?

점수 2

댓글:

I agree, since first answering this question I have run into multiple error on these machines that were caused by defective trackpad cables.

의 답변

what model are you using? i get the same error and symptoms on an 11,5 and also suspect the trackpad cable as being culpable

의 답변

Thanks, how did you implement a new trackpad cable? I want to try this. Thanks so much.

의 답변

의견 추가하세요

귀하의 답변을 추가하십시오

pcgeek 가/이 대단히 고마워 할 것입니다.
조회 통계:

지난 24시간: 0

지난 7일: 2

지난 30일: 10

전체 시간: 503