I bought the "CT2KIT51264BC1067" (2x4GB 204-pin SODIMM 512Mx64 DDR3 PC3-8500) for my macbook 6,1 and it won't turn on and it just beeps. I think BIOS is telling me something I'm not familiar with, but prolly it can't recognize the RAM that I just installed. Here's the image of what I'm trying to plug in to my mac. I currently have 4GB of RAM also from crucial. Hardware is not really my area, yet. So if anyone who has tried 8GB on their macbook 6,1 pls hit me up or reply to this post. THANKS!