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lynx44

macrumors newbie
Original poster
Aug 14, 2013
3
0
first off hi to everyone i'm new to the forum. well I got a 2008 unibody macbook and it stopped working and the light on the charger does not come on. so I opened the computer up and looked around. I did not see anything that looked bad but when I put my hand on the motherboard I got burnt on a chip. now my question is what is this chip? it says 8904c-f delta 0913 its a little black chip near the power jack. and does this sound like whats causing my problem?
 

lynx44

macrumors newbie
Original poster
Aug 14, 2013
3
0
I will get a pic as soon as I take one. I was on the computer I smelled something burning and the computer went out. just my luck. but where I work I am able to change the chip and I think they are very cheap to buy.
 

lynx44

macrumors newbie
Original poster
Aug 14, 2013
3
0
OK finding this chip is harder then I thought. And I do not want to go through a broker. If anybody has a bad motherboard with this chip on it and want to sell it let me know.
 

Ichabod.

macrumors regular
Oct 1, 2012
122
1
I have a 2008 unibody MB and I seem to have a similar issue as you with the charge cable light not coming on (and some other minor logic board issues). But the computer still charges properly.

I investigated buying a motherboard on ebay / ifixit / etc. They seem to cost around $400, but I can't really justify spending that. :(

Edit: I suppose you could buy a broken mother board on ebay or whatever site for considerably less and take a chance at replacing the chip itself, depending on how skilled you are.
 
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mr_manny

macrumors newbie
Jan 12, 2022
7
4
I was replacing the internal HHD on my macbook pro, and also found a burnt 8904C-F chip.
Only by reviewing another macbook pro, was I able to identify the burnt chip.
Is anyone familiar with the function of this chip?

It doesn't appear to affect the functionality of the MBpro.
Wondering If I should have it repaired...
 

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jim_090

macrumors newbie
Jan 27, 2022
3
0
The chip is to optimize efficiency and power consumption of the device during playback, stereo ground-referenced headphone amplifiers are used using Wolfson 'Class W' amplifier technologies. Toutes of the outputs feature ground-referenced feedback paths to reduce ground noise, and the headphone output eliminates AC coupling capacitors.:)
 
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