Mid 2010 Model A1278 / 2.4 or 2.66 GHz Core 2 Duo processor

802 Questions View all

Need Help identifying logic board component

Hi all,

My MacBook has the "Wifi:No Hardware Installed" problem which is due to a failed component on the logic board. Please help me identify the parts marked in the attached pictures so I can replace them.

Block Image

Upper is how it's supposed to look, lower is my board.

Imgur Pictures

Any help would be greatly appreciated!

Answered! View the answer I have this problem too

Is this a good question?

Score 1
Add a comment

1 Answer

Chosen Solution

soerenfi, this answer is only to identify your components not to diagnose what shorted those out.

Reference designator C3422 is a 0.1uF 10V 20% capacitor in a 402 package.

Reference designator L3404 is a FERR 120 ohm 1.5A filter in a 0402 package.

Block Image

Was this answer helpful?

Score 4


Just an update since I noticed I forgot to report back: in December 2015 I replaced the capacitor and filter, which brought the wifi back to life and it's still working today!

I assume someone put in the wifi card connector the wrong way and shortened out these two components originally.


Add a comment

Add your answer

soerenfi will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 2

Past 30 Days: 3

All Time: 97