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1.8GHz dual-core Intel Core i5 (Turbo Boost up to 2.8GHz) with 3MB shared L3 cache

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Where is MacBook Air 13" 2012's thermal sensor?

Where are the thermal sensors in this computer?

One of my thermal sensors output a constant value 255, which is interpreted by Mac OS X as overheat(and the OS then throttles the processor), although the temperature is in fact normal.

Want to find and disconnect or short this sensor.

Where is the thermal sensor?

I searched online and found the color of the sensor is a tiny separate light or dark green PCB in other Macbook models, with a surface mounted 3-pin component like a transistor.

See:

http://www.macking.co.uk/media/catalog/p...

But this piece does not exist in the Macbook Air 2012.

I looked into the motherboard picture on Macbook 2012, there are two light green components on the back side of CPU, are they the thermal sensors?

Thank you all for help!

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Lets try a different way to locate the sensor as well as figure out why its going off. It maybe doing the right thing here, but without some level of diagnostic it is just a shot in the dark.

Download this app: Temperature Gauge Pro. take a screenshot and post it here for us to see. Then we can figure out whats happening and what sensor needs replacing if that is truly the issue.

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The thermal sensor you linked to seems like a thermal sensor from a pre-unibody 15" MacBook Pro, and is definitely not inside your MacBook Air. Unfortunately even if you were to locate the thermal sensor, disconnecting it or shorting it would not solve the problem, as there are most likely many mechanisms that prevent this from working. For example, there is likely an IC that will detect a shorted sensor or circuit break where a sensor should be, and send an 'ALERT' or warning signal to the SMC.

Depending on the thermal sensor, fixing the issue is certainly possible with the right equipment if it's on the logic board. It could also be on an external device, such as a trackpad or SSD, but as Dan said the temperature sensor needs to be identified before anything else.

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