I have a acer aspire 1690 wlci. It has 2 256MB RAM installed. I want to upgrade the RAM but I dont know whether I can use a PC2 5300 SO-DIMM Notebook Memory. The sticker places near the keyboard in the laptop says "dual channel support" I looked up the RAM installed . Here is what is pasted on the RAM: pc2-3200s-333-12. According to crucial.com site if i do the ram finder using acer aspire 1690 series it has 2 options 1. just acer aspire 1690 series 2. acer aspire 1690 series with dual channel support for the 1st one they suggest PC2-3200 and for the second what they suggest is "Each memory slot can hold DDR2 PC2-5300,DDR2 PC2-4200 with a maximum of 1GB per slot" does it mean I can use PC2-5300. any help guys Raaj