I have a late 2010 macbook air 2.13 ghz and 256gb. I spilled a coke on it, and it works fine, the I/O board had some corrosion and a cable as well, which were replaced. My wifi range is severely affected however, from my office to my router, I go from 30 MB/Sec to 1 MB/Sec, oddly, my UPLOAD stays up at 4MB at both ranges. I get good range there with my five-year-old white macbook and my Vaio. My guess is that it's either the wifi card, or something to do with the logic board. If anyone has any other input that would be great. So. I can replace the wifi card first, which will be around 100 bucks, if that doesn't fix the issue, I'll replace the logic board, which leads to my second question. Can I swap the late 2010 Core2 Logic board with the Core i7 Logic board?