Inside the FS115B is a 1.6GHz Pentium M CPU and 512MB of memory - although Sony has decided to go with DDR rather than DDR2 memory. Sony has made use of the dual channel memory support and installed two matched SODIMM modules. The down side of this is that you're left with no spare memory slots for future upgrades, although 512MB should be fine for most users of this type of notebook.



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