00875 Missing sensors possibly?

down1nit

Member
On boot, the machine is very slow, with the fan on high. Managed to get iStat Menus and it shows missing readings for Bottom Skin, CPU Prox, DDR3 prox, PCH, Right fin stack. No visible corrosion, no evidence of liquid on the bottom cover.

Bottom skin comes and goes, but the rest are always gone. Should I be looking at a chip or a pullup? I'm not to familiar with the sensors circuits.
 

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2informaticos

Administrator
Staff member
You cannot get several errors caused by one sensor.
The communication on the bus is blocked by some I2C interface.
Usually trackpad, or ALS.
Disconnect webcam and test again.
If still the same, try known good trackpad board/flex.
 
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