Changing VAIO SB Series RAM

The vaio SB series (my review is here) comes with 4GB installed RAM and a single slot. Yes, I found only one slot on opening the back panel, it seems the pre-installed RAM is on-board. I'm not complaining though, the maximum this machine can work with is 8GB and 1 free slot is perfect. In fact its a lot less irritating that most machines that have 2 slots, but put in 2 2GB RAM modules; what a waste. I added another 4GB Corsair 1333 MHz SO-DIMM module; works really well. The amount Windows 7 can do with 8 GB RAM is simply amazing, on OS X I was always running out of RAM even when I had 8 GB installed.