hello everybody 
I have bought a vaio 3 months ago , and i wanted to upgrade my vaio rs 302 with 2 memories 256 mo .
Actually , there is 512 mo (2*256mo) with pc2700(ddr400) memory, and my mother card is a intel 865pe chipset (i think i'ts an asus p4p800 but i can't arrive to download the manuel guide on vaio-link.com).
I try to contact E-Support but i can't arrive to register me( they said that my e-mail is not valid on their data base 
).
So if somebody have a vaio pcv-rs 302, it will be very fine to give me the configuration (which mother card?which is memoty mark?)
My questions are:
which mark are my memory mark?( i think it's Crucial memory 
)
why i have got pc 2700ddr 400, that exists? or it's a fault on my technic manual?
which memory ram can i take , corsair , samsung...?
If i have got pc 2700ddr400 on my vaio, it's no use if i buy pc 3200ddr400 cause the mother card takes the lower memory, so in reality my pc 3200ddr400 will be as a pc 2700ddr400?no?
and finally how can i do to activate dual channel?
Many questions but i'm lost 
I' m a french so excuse me for my english 
I hope you will have understood me
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