Mac slow with fan at full blast - SMC sensors issue
Hi, I have a MacBook Pro with classics PFM006 and PPN001 error codes, system slow and fan at full speed.
I have several sensors reading bad values. Different programs read some sensors but not others:
- HWMonitor Official: Heatpipe Incoming and Outgoing Air;
- Different version of HWMonitor: Palm, Touchpad, System Proximity and Ambient;
- iStat Menus: Actuator, Palm Rest and both SSD Proximity.
It’s clear that something is wrong, probably the SMBUS_SMC_3.
I looked at the logic board and I don’t see any sign of oxide, looks perfect to me.
I tried removing the Trackpad because it’s a common cause and of course I had the same symptoms (SMC detect a missing sensor) but all the sensors were like before.
I think if the cause was the trackpad, removing it would mean having only the trackpad sensors reading bad but the others being okay, am I right?
I haven’t look at the voltages yet, what could solve the problem? A SMC reflow or could still be the Trackpad?
The logic board is: 820-00923-A
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