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    Memory Upgrade for AW21S/B help needed

    Discussion in 'VAIO / Sony' started by skoobys, Mar 20, 2012.

  1. skoobys

    skoobys Notebook Enthusiast

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    Hi there,

    I have a AW21S/B Laptop I want to upgrade it by upping the mem from 4GB to 8GB, now the official specs say that 4GB is the max but on the Intel site the motherboard specs say that its max is 8GB any one done this or it it a no go!



    Thanks Dave.
     
  2. LaptopUser247

    LaptopUser247 Notebook Consultant

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    Sony doesn't seem generous in letting us know what chipset the AW series uses though I'm pretty sure it will be the PM45. If so then 8GB is certainly possible in the PC2-6400 DDR2 variety.

    Download CPU-Z and check what it says under the Mainboard tab under 'Chipset'? PM45 right?

    Whatever it turns out to be follow this logic and once you know what chipset use the below link to find out the maximum capacity and type of memory you need.

    Supported laptop memory by Intel chipset --> What laptop memory for my Intel mobile chipset based laptop

    If it's indeed the PM45 then as it supports DDR2 and DDR3 but not together and laptop manufacturers chose their path according to their own design principles. The below Sony website for your model states DDR2 so do not buy DDR3 hoping it will work, because it won't even fit the memory slots let alone function in a DDR2 laptop.

    Sony VGN-AQ21S_B specifications