I was attempting to enable the new hibernate feature in Mac OS X 104.3 and decided to make sure I was running the proper version of the OS. I opened up the About This Mac window and sure enough, the window reported that I had 704Mb of RAM. I had never seen a RAM configuration like that before. After some investigation it seems that I had found some random (no pun intened) RAM in a box in my office and slapped it into the my machine. So very odd when you forget things you did no more than a month ago.