Logic Board compatibility upgrade
I have a Mid-2012 MacBook Pro 15" A1286. 2.3GHz Processor. Most of everything works except the USB ports and Optical Drive. I took it a while back to a shop and they told me it had liquid damage on the logic board. I didn't have money then to fix it and it still runs fine. Just can't use the USB ports or Optical drive. Now I'm thinking about upgrading the RAM, it currently only has 4GB and is getting painfully slow. Is it possible to upgrade the logic board to one that has a faster processor? What would be the best way to get one? eBay? Thanks!