Hello, i have
http://www.google.gr/search?hl=el&q=fujitsu+lifebook+a530&gs_sm=e&gs_upl=328l1142l1l1707l4l4l0l0l0l2l659l1519l3-1.1.1l3l0&bav=on.2,or.r_gc.r_pw.,cf.osb&biw=1366&bih=639&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=4APjTobBJYrsOf7F3bUE#um=1&hl=el&tbm=isch&sa=1&q=fujitsu+lifebook+a+serie+ah530&oq=fujitsu+lifebook+a+serie+ah530&aq=f&aqi=&aql=&gs_sm=e&gs_upl=15944l15944l2l16124l1l1l0l1l1l0l0l0ll0l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=16eb9875fd56a20f&biw=1366&bih=639

I have 3GB DDR-3,
1 x 1GB 533 MHz
1 x 2GB 667 MHz

My question is, why i have to low frequency.
As i see in market DDR-3 frequency are about 1066-1333 ;p

What about dual chanel memorys? maby it goes like this?
533*2 = 1066 || 667*2 = 1333

2nd Question:
For an laptop with (AVG IS12, Vstudio/Matlab/Xilinx/DWeaver/Photoshop) is enought 3 GB?

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