[JAPAN] How/where/what RAM to buy to upgrade a Vaio SZ75?

I have a Sony Vaio "VGN-SZ75GN", "Model PCG-6WFP".

It is an "overseas model" which I bought at a Sony Style Store in Tokyo a few days ago. I like this laptop very much, however it came with only 1 GB of RAM.

I want to upgrade to 4 GB.

I would like to know which RAM I need to buy and which will work for this laptop; I don't understand anything about laptop RAM, are there different form factors? How can I know if a certain RAM will work in this laptop or not? I read the article at
http://www.notebookreview.com/default.asp?newsID=4542
which was very enlightening but I still don't know how to find out model numbers or whatever to actually buy the RAM.

I asked at the shop where I bought the laptop, and also at Yodobashi camera, but they would not sell me additional RAM. Yes, I know it sounds weird but as soon as they realized from my laptop model number that it's an overseas model, they immediately switched to "no support"-mode. Try arguing with a Japanese sales clerk when he's in no support mode.

I could imagine the RAM for Japanese domestic models works anyway?

I would be thankful if someone could explain me how I can find out, which RAM do I need. Also, if you have a recommendation where to buy that RAM in Japan (I live here) that would be great. Thanks!

 

I also live in Japan. For buying ram look online at kakaku.com and bestgate.net both have similar stores sometimes one finds a cheaper store then the other.

I highly recommend avoiding Yodobashi etc they usually have the highest prices around except for on Rakuten.co.jp

for the ram you need I believe everest free edition tells you what kind of ram you have.

http://www.majorgeeks.com/download4181.html

 

Notebook ram is 200pin. Key things you will need to have in mind when buying ram for your notebook.

- 200pin
- PC5300/5400 (same thing)
- 667mhz