Sorry it's to close to impossible for us mortals! They use a special fixture to hold the chips in place and heat both sides at the same time. Your chances is less than 20% getting it to work and heating the board without the proper masks could cause the other components to shift killing your system for sure - Its' not worth the risk. Besides, putting that much memory into this system will shorten the battery life to a few hours, Apple does a good job balancing function and battery life forcing this much RAM into the system would make the system useless for traveling. The latest '13 model increased the RAM to 8GB as the CPU they are now using uses less power. I would strongly recommend upgrading to the newest system if you really need that much memory.