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    Sony VGN Z620D RAM Memory upgrade

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by bric, Jul 14, 2014.

  1. bric

    bric Newbie

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    I was thinking about a memory upgrade but the specs on the Sony support site say, "installed: 4GB, max: 4GB".

    I wonder though if this is a hardware or software limitation. With 32bit Vista installed by default 4GB would be the max.

    But if you upgrade to a different O/S (ubuntu, Win 7 64bit, Win 8 64bit) then could the motherboard handle more RAM. And how much?

    Has anyone tried it?
     
  2. Tsunade_Hime

    Tsunade_Hime such bacon. wow

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    Crucial USA - scan results

    Official Sony specs say 4 GB upgrade max, but the GM/PM45 chipset will support up to 8 GB RAM. It's possibly Sony gimped the laptop to 4 GB max, I would say get a 8 GB kit from somewhere that has a good return policy and see if it works.
     
  3. bric

    bric Newbie

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    I was hoping someone had already done it, but I suppose I can try it out with ubuntu 64 and some returnable RAM. Then if it works I can buy Win 8 64bit (which I need for the laptop). Good suggestion. Thanks
     
  4. bric

    bric Newbie

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    Now, a followup when, years later, I finally got around to trying this:

    My z620d did not even post with 8GB of ram installed. Pulled one module and it posted fine with one 4gb module.

    disclosure: I suspect that I may have a failing motherboard (bad mem slots?) as I got memory errors in memtest86+ with my old RAM and all new RAM I tried. And problems getting o/s to install without errors. Also, it was with the original BIOS settings, not the win7 upgrades... if that makes a difference, bios capabilities are pretty minor.