MacBook Pro 15" 2007 is dead. How to make sure it's the left I/O board?
My 15" 2007 MacBook Pro is now completely dead. No light on the 85W magsafe (which does work on unibody MBP 15), battery completely empty, no sign of life whatsoever. Apple Store says I need a new "logic board" but could not specify which one, main or left I/O. How can I make sure it is the left I/O board?
The computers' power circuits have been steadily declining in recent months. It has a checkered history - it's the one that ran hot, had kernel panics due to graphics card drivers, and had the graphics card hardware issue. The computer died in October 2008 and "the logic board" was replaced under Apple Care, free of charge. When AppleCare ran out I bought a unibody MPB and my son inhereted the 2007 model, using it for his music and being pretty happy with it, until the battery would not charge anymore. He then ran it on the power supply only, until it would not boot up. Apple Store did some magic with it (probably reset SMC), it ran for a while longer without charging battery, then did the same thing (not booting, but magsafe connector showing green LED). Searching on the web I found some hints as to how to reset SMC and this worked - once. Took the computer off the magsafe when going on a holiday, when I came back it had deceased.
Apple Store quoted $ 540 for a logic board replacement. The left I/O board is available online for $ 119 and I am able to mount it myself, would do so if I could make sure that this unit has failed and not the main board. And that, friends, is my question.
Let the Apple folks - or an AASP - run diagnostics on the machine. They'll be able to tell if you need a new logic board or not. Get an estimate - if it seems outrageous then it's probably time to buy a new computer.
Just my 2¢...
Clinton
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when the battery of my macbook pro is fully loaded it emits a hi-frequent noise from the left where the magsafe connector is connected.
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