What is this piece?

[glimberg]

Hi all. Just a quick question for you all. I just finished upgrading my Mid 2009 Mac Mini from 2GB to 8GB of RAM. In the process, however, what looks like a small IC on the right side of the CD/DVD-ROM drive popped off while opening up the case. It's not the entire little card next to the drive. Just the tiny little IC that looks like a black button with a white case.



Everything is working fine without said piece. Memory shows up fine. Optical drive works. I'm just wondering what this little piece is and if everything should work A-OK without it or if I should go ahead and try to solder it back on.

Thanks in advance,

Grant

[saul]

IR sensor and power LED are on that card.

[glimberg]

[philiparcario]

I have a link for the part I will look later. don't solder it back on if you do it wrong it can harm the mini.



http://www.dvwarehouse.com/Apple-IR-(Infrared)-Board-with-Cable-for-MacMini--922-7318-----NEW-p-36925.html


this is the cable


http://www.ifixit.com/Guide/Repair/Installing-Mac-mini-Model-A1283-IR-Board-Cable/1061/1

full replacement instructions.
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