After two bad Crucial 256GB M4 SSD's in a row, I decided to make the switch and got a Samsung 512GB 830. So I decided to do a fresh install since I lost most of my important information when the Crucial took a dump. It was my fault for not backing it up but I did have a Time Capsule on the way, just bad timing I guess. While trying to perform the internet recovery, which I tried several times, I kept getting the error "can't download the additional components needed to install mac os x". I eventually read somewhere that it could be due to faulty RAM. So I installed the factory 4GB RAM and everything worked like a charm. My question is, does this mean the Corsair 16GB RAM (CMSA16GX3M2A1333C9) is bad? Should I reinstall it an run some type of hardware test or just send it back to Corsair. Should I look into another brand of RAM. I have to get my MacBook running without any problems. I can't believe my luck with hardware lately!