I would add that although it is technically possible to repair a board in certain cases, it does require a level of expertise, not just in soldering, but in how boards function. I've done research on this myself, and I've found that unfortunately there is not a lot of information available, and most people who do this are self-taught and reluctant to give away their secrets. There is a huge market for fried boards, because there are a lot of people out there who repair them, and your laptop in particular is worth a decent amount of money on eBay, for example, even as a dead machine. You may be able to recover half of what you paid for the laptop new. What I am suggesting is that if you are not well versed in logic board repair already, it may make sense to sell your laptop on eBay and recover as much of its value as possible, and then get experience doing repair on lesser-value machines (first gen MacBooks, for example). Again, your particular machine has a lot of value, so I'd be hesitant to work on it, because if you are not successful, that resale value will drop significantly because it will be an "already worked on" board at that point.