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The March 2015 update of Apple's 13" MacBook Pro Retina Display, model A1502, features fifth-generation Intel Core i5 and i7 processors and introduces the Force Touch trackpad.

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Fan connector pinout on system board?

Fan connector on the system board was broken. I obtained a new one, and had a local cell repair shop solder it in (since I'm not skilled with anything that small). Fan works, but runs full speed, and my fan monitoring software says 0 RPM. So I've got power to the fan, but obviously no tach signal coming back. Does anyone know the pinout for this?

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The pinout is:

Pin 1: 5V DC

Pin 2: Motor Control (PWM signal)

Pin 3: GND

Pin 4: Tach

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The pinout is:

Pin 1: 5V DC

Pin 2: Motor Control (PWM signal)

Pin 3: GND

Pin 4: Tach

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mgb2 will be eternally grateful.
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