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Mid 2012 model, A1278 / 2.5 GHz i5 or 2.9 GHz i7 processor.

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Logic board damage - what is this component?

Hi.

I've recently discovered my MacBook's logic board was damaged, probably by the previous owner.

Picture 1 - Before cleaning

By the look of it, I guess it was Coke. After cleaning it with isopropyl alcohol, it looks like this.

Picture 2 - After cleaning

As you can see, two pins of the component in the red circle are destroyed, but the device is working properly and I haven't noticed any strange behaviour.

So my questions are:

What is this component?

Which circuit is it part of?

My plan is to buy a cheap broken logic board from eBay and replace the component. My technician friend told me that was a good idea, but that I also could use it like this, because it's probably ("probably" - this is what worries me) a component which is not that important.

Thank you in advance.

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That is U 5410 which is a TI INA214 in a SC70 package which is part of your computer sensors. This one monitors the high side current and "reports" it to the SMC. If you run a AHT it should give you a sensor error. Replace it to avoid any sensor related issues

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Thanks!

Just to be sure, can this one do the job?

http://www.ebay.com/itm/IC-CURR-SHUNT-MO...

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Some of the values are different so not sure how this will interfere with the function for the sensory circuit. I'd stick closer to he original values http://www.ti.com/product/ina214

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vektor42 will be eternally grateful.
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