Chosen Solution
I have recently rebuilt a Macbook Pro A1286. When I got to the point of installing a HDD, I noticed a missing capacitor, very close to the HDD connector on the logic board. I can include a picture, and if I can determine the value of it, I believe I am capable of resoldering it on. Any help pointing me in the right direction is very much appreciated!
Andrew, double check your serial number. anyhow, what you are missing is not a capacitor but a Common Mode Choke Coil 90-OHM-100M DLP11S. Check here for the datasheet. It is part of the SATA connectors and SATA HDD circuit. Hope this helps, good luck.
