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Macbook Pro's DC-In failing, after previous one was replaced

post #1 of 4
Thread Starter 
I have a Late 2008 MBP 15". Last year the power started behaving oddly, the power icon in Mac OS X would say "plugged in, not charging" when the cord was plugged in. Sometimes the cord's light wouldn't be lit, while plugged in, or it would turn green when it was supposed to be orange.

I could get it to charge properly by wiggling the magsafe connector laterally along the surface of the magnet. It would slowly act up worse and worse over time, it would take more and more tweaking to get it to charge the battery. I finally ordered a new DC-In board and replaced it, and the Magsafe connector worked fine for a while again. It's now repeating the same behavior and getting worse.

What could cause this part to go bad in the same way as before? I don't plug/unplug my cord very often, so it's not wear and tear. I don't hear a lot of other people with the same problem, so I'm kind of annoyed with this issue. Thoughts?
post #2 of 4
Quote:
Originally Posted by magnusalpha View Post

I have a Late 2008 MBP 15". Last year the power started behaving oddly, the power icon in Mac OS X would say "plugged in, not charging" when the cord was plugged in. Sometimes the cord's light wouldn't be lit, while plugged in, or it would turn green when it was supposed to be orange.

I could get it to charge properly by wiggling the magsafe connector laterally along the surface of the magnet. It would slowly act up worse and worse over time, it would take more and more tweaking to get it to charge the battery. I finally ordered a new DC-In board and replaced it, and the Magsafe connector worked fine for a while again. It's now repeating the same behavior and getting worse.

What could cause this part to go bad in the same way as before? I don't plug/unplug my cord very often, so it's not wear and tear. I don't hear a lot of other people with the same problem, so I'm kind of annoyed with this issue. Thoughts?

It is odd. My thoughts would drift towards the charger perhaps being unstable and stressing the DC in board. If you could borrow another charger to try it may tell you something. But the DC in board may already be damaged.
post #3 of 4
Quote:
Originally Posted by magnusalpha View Post

I have a Late 2008 MBP 15". Last year the power started behaving oddly, the power icon in Mac OS X would say "plugged in, not charging" when the cord was plugged in. Sometimes the cord's light wouldn't be lit, while plugged in, or it would turn green when it was supposed to be orange.

I could get it to charge properly by wiggling the magsafe connector laterally along the surface of the magnet. It would slowly act up worse and worse over time, it would take more and more tweaking to get it to charge the battery. I finally ordered a new DC-In board and replaced it, and the Magsafe connector worked fine for a while again. It's now repeating the same behavior and getting worse.

What could cause this part to go bad in the same way as before? I don't plug/unplug my cord very often, so it's not wear and tear. I don't hear a lot of other people with the same problem, so I'm kind of annoyed with this issue. Thoughts?

It is odd. My thoughts would drift towards the charger perhaps being unstable and stressing the DC in board. If you could borrow another charger to try it may tell you something. But the DC in board may already be damaged. Of course it could also be something beyond the DC in board that is not working correctly. Difficult to find if you are not a technician.
post #4 of 4

My idea would be to check the battery to see if it still holds a charge, click on the apple at the top left corner, go to about this mac. Then click the button labeled 'More Info...', then look for the tab named power, if it isn't there go to View > Basic Profile. Under there, there should be a title called Charge Information. Beside the words 'Full charge capacity (mAh):' it should say a number. What does it say? If it seems low or is at 0, the battery might need replacing.

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