Acer Extensa 5620 Notebook PC Logo
Posted on Oct 02, 2009
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Acer Extensa 5620Z will not work with more than 2GB RAM??

Hi'ya, Got this machine with 2*512's. Upgraded to 2*1G - all ok. Just tried to upgrade to 2*2G and it bluescreens.
If I pull one module out, all is fine. If I replace that module with the one I took out, all is fine, too. If I leave the 2G in the lower slot and put one of the 1GB in the upper slot - bluescreen.
I am running Windows 7 x64

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  • chris187 Oct 02, 2009

    Interesting... I just called our local Acer distributor and they told me that 2*2GB is the maximum and they have deployed 4GB on 17 Extensa 5620Z's. They said that there are no driver/BIOS/Chipset updates to do.
    However - Mine still bluescreens with 2*2GB....

  • chris187 Oct 02, 2009

    Interesting... I just called our local Acer distributor and they told me that 2*2GB is the maximum and they have deployed 4GB on 17 Extensa 5620Z's. They said that there are no driver/BIOS/Chipset updates to do.
    However - Mine still bluescreens with 2*2GB....

  • chris187 Oct 02, 2009

    Interesting... I just called our local Acer distributor and they told me that 2*2GB is the maximum and they have deployed 4GB on 17 Extensa 5620Z's. They said that there are no driver/BIOS/Chipset updates to do.
    However - Mine still bluescreens with 2*2GB....

  • chris187 Oct 02, 2009

    Also - There are quite a few references around the net for 4GB in this laptop - Here is a random one..
    http://www.satech.com/acer-notebook-memo...

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  • Posted on Jan 12, 2010
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I can get xp to start if you put a 1 GB chip in the bottom slot and a 2 GB chip in the upper slot but havent tried 2, 2 gig chips yet

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  • Posted on Nov 19, 2009
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Parrotheadpc is incorrect in stating "you can only have a total of 2048 mb installed".

the 5620Z accepts 2 x 2 GB SODIMM RAM, the machine boots and shows the full 4 GB in the BIOS.

the full 4 GB works with the Ubuntu x64 installer.

Windows XP x32 goes BSOD on startup.

Windows 7 x64 install from DVD fails with same BSOD error.

conclusion: this is a Windows-Extensa 5620Z incompatibility that would require a fix by ACER at the BIOS level.

question: there may be specific memory modules 2 x 2 GB which do work--anyone have it work with Windows?



  • Anonymous Nov 19, 2009

    not true. it takes the full 2 x 2 GB sodimm modules and on boot the BIOS shows the full 4 GB available.

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Your ram is the spec below. You can only have a total of 2048 mb installed. That is all the BIOS is designed for with your system.

  • Module Size: 1GB
  • Package: 200-pin SODIMM
  • Feature: DDR2 PC2-5300

    • Anonymous Oct 02, 2009

      I went to www.crucial.com they are the memory distributors and have the specs for all units. Give them a try, they can scan your system or you can input the information manually.

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