what RAM for my notebook

[s4turbodub]

I have a DELL Inspirion 600m notebook. I am confused which I have 144,172,DDR, or DDR2 ? If someone could help me out that would great.

 

[Budman]

http://www.dell.com/

 

[Zirconium]

You probably have PC2100 DDR SO-DIMM. But yeah, RTFM. It is all there. Also, http://dealnews.com/memory/.