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Could you help me diagnose whats going on with my macbook pro?

W

wrenmillard

macrumors newbie
Original poster
Jul 1, 2009
8
0
I own a 15 inch macbook pro pre-unibody, purchased in 2007.

Recently, my computer has been getting MUCH slower. The the sound started to give out. Like when i'm listening to music, you can still hear the sound, it just breaks up and is VERY crackly (10% music, 90% crackle). Then my screen started to go black when active. I've kind of found out that if you move the lcd, it goes black. All my warranty is expired, and I don't have much cash. Am I up a creek without a paddle?
What's wrong with this thing? How do i fix it?

I still have plenty of memory left,

If you need more info to help me out, just let me know.
-

Thank you so much for reading.
 
Well it sounds like the logic board and/or components on it are failing. There isn't much you can do unless you find an exact replacement model on eBay or maybe some other site that sells them.

I'm sure other MR members may know somewhere you can get one. But the prognosis doesn't appear good.
 
Thanks for the quick response.

I google'd the logic board, Looks like a new one is like 500 dollars.

Looks like i'm screwed.
 
If it's the logic board and you have the 8600 Nvidia Graphics, you might be able to get a free replacement, because the graphics chips in those were "recalled" for failing due to heat separation from the logic board.
I'd check at the Apple Store just to see.
 
mgartner0622 said:
If it's the logic board and you have the 8600 Nvidia Graphics, you might be able to get a free replacement, because the graphics chips in those were "recalled" for failing due to heat separation from the logic board.
I'd check at the Apple Store just to see.
Click to expand...

It could also be an ATI model like mine.
 
I'd just try creating a new User Account on the machine, and see if the problem persists, before I write off the logic board. If the sound problem at least does not persist, then you need to do a software reinstall. A reinstall might also fix the slowness.
It's not really related, but a PRAM reset does not hurt the least. (Command Option P R at startup)
 
Make sure audio wire connections and jacks on machine are clean and debris free.

Do the same check for the magsafe power jack in the machine.

Follow all this with a reset of PRAM and SCM memory.
 
I just came back to add a possible solution to your sound issues if you are using ITunes.

ITunes -> Preferences -> Playback

Make sure Sound Enhancer is checked off. This garbage of a feature did to me something similar to what you are describing.

good luck
 
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