Palm Rest Temp hardware issue.
I have a Mid 2012 A1278 Macbook Pro that is slow and the fan runs at full speed from the start of initial boot up. Also there is a process called Kernel_task using between 250% - 300% cpu. After a hardware test the system gave me a code of: 4SNS/1/C0000008:Ts0P--124. Seaching on the internet most people say that the cause of this problem is the Palm rest temp sensor. The actual location of this sensor seems to be a mistery. Most say that this sensor is located on the track pad. To repair my Mac would you recommend to replace the track pad by it self or the hole upper case with the track pad on it?
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