Chosen Solution

Hello, I bought a Macbook Pro 13 inch Mid 2010 from ebay, and the store claimed that the dvd drive, wifi and power button doesn’t work. I already knew of the power pads so I could care less about the power button. I tried examining the board for any corrosion or signs of liquid damage but haven’t found anything… btw the outer case is perfectly fine. When I removed the logic board to replace the thermal paste because Apple is terrible at applying it, a random chip fell on the table and I cant find where it belongs. Unfortunately, this was months ago and I cannot find the chip, I placed it somewhere in my tool kit.. All I remember is that it has 4 pins on each side and is about medium size (considering that everything is so small) Could this chip control these devices? Oh and I’ve already tested the wifi and the od with known working ones. Thanks for your help guys! I think it more closely resembles the purple. http://i62.tinypic.com/2ppbtc5.jpg I think I’ve found where it belongs.

Second image to the right middle next to the cylinder.

Kyle C,

Reference designator Q2300 is a N-Channel 10 mOhm @3.2V 4.3 A (EDP) STMFS485NST1G Reference designator Q4690 is TPS2064DGN which is a USB Switch ICs and is part of the Port Power Switch circuitry. There is no way to guess by just looking at it to know what your IC’s is. To properly identify it you will have to have a part number on it or know where it is located. Hope this helps, good luck. UPDATE The missing part on your logic board is reference designator Q4590 which is a TPCP8102 P-Channel MOSFET Transistor 7.2A 20V and it is part of the SATA connector power supply.

Hey there . It seems to be the Q4590, responsible for Optical Disk Drive Power Control. So Superdrive related.

Digikey Link « Datasheet «

…old thread… but nevertheless… I also look out to buy the TCPC8102, but it’s now in 2017 out of stock… Btw: I also have the problem, that the wifi/bluetooth-card is out of function (only the wifi-section of the combo-card…). I’ve tested the board with two airport/bluetooth-cards, too. Please take a look at my thread to this problem, because it is described in more detail: Airport-Problem “Keine WIFI-Hardware installiert”; Bluetooth okay! Wifi-issue “No Hardware detected”, but Bluetooth okay! Thanks for tips about a source for the MOSFET TCPC8102 (Q3450 in a MacBook white, Mid 2010) Your Georg