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4Gb Memory upgrade on 32-bit Vista Home Premium RRS feed

  • Question

  • Hi,

     

    I am trying to upgrade my memory to 4Gb on my Acer Aspire 9301AWSMI notebook. It previously had 1Gb RAM and I upgraded to 1.5Gb. Now that memory prices have plummeted I purchased two 2Gb sticks. When I inserted them my notebook boots up, pauses at the CRCDISK.SYS file, flashes a blue screen with an error message (which goes too quickly for me to read), then reboots.

     

    I have tried the 2 x 2Gb memory and the 2Gb & 1Gb memory together with the same result, however it does boot up with 2Gb & 512Mb memory together.

     

    I am running on 32-bit Vista Home Premium with Service Pack 1

    AMD Turion 64 mobile technology MK-36 2.00GHz

    2.50Gb RAM (at the moment!)

     

    I have read several threads that say that the 32-bit Vista should handle 4Gb but for some reason will not. Does anyone have any idea how I get around this problem please?

     

    Your help is much appreciated.

     

    Steve

    Tuesday, April 15, 2008 11:29 AM

Answers

  •  

    Hi Steve,

     

    Memory sticks of different brands or models can be incompatible with each other. We suggest using memory sticks of the same brand, model and size. This will decrease compatibility issues.

     

    To upgrade your BIOS, you may need to contact your computer manufacturer as computers in different brands and models have different BIOS.

     

    In addition, I would like to let you know that in Windows Vista 32bit, at most 3.12GB RAM is available if more than 3GB RAM is installed.

     

    For more information, you can refer to the following articles:

    http://support.microsoft.com/kb/929605/en-us

    http://support.microsoft.com/kb/946003/en-us

     

    Hope it helps.

     

    Tim Quan - MSFT

    Thursday, April 17, 2008 3:36 AM
    Moderator

All replies

  •   Several MBs are shipped w/o support for the memory they claim to be able to handle.

    Yes 32 bit Vista will handle 4gig.  On the down side, there is an inherent flaw with the x86 architecture (32 bit).  It will only see and use just over 3gig of your total 4gig memory. 

    Memory dimms these days are also very sensative.  They don't like different brands, or even sizes, of memory in the same board.  Also check with your manufacturer to see if your product supports the brand of memory you purchased.  You can also try one mem stick at a time for a "dirty" test for a bad stick.

    Additionally, you may need to upgrade the BIOS.  Manufacturers are notorious for shipping new boards with outdated BIOS.
    Tuesday, April 15, 2008 2:39 PM
  • Thanks Flayofish,

     

    At the moment I am using one of the two 2Gb sticks with the 512Mb stick in the other socket. I've tried the same configuration with the other 2Gb stick and that works as well, so I'm assuming that both 2Gb sticks are compatible and are working correctly (just not at the same time!). Where do I go to get a BIOS upgrade? Sorry, I'm a bit of a techno-biff!

     

    Steve

    Tuesday, April 15, 2008 5:29 PM
  •  

    Hi Steve,

     

    Memory sticks of different brands or models can be incompatible with each other. We suggest using memory sticks of the same brand, model and size. This will decrease compatibility issues.

     

    To upgrade your BIOS, you may need to contact your computer manufacturer as computers in different brands and models have different BIOS.

     

    In addition, I would like to let you know that in Windows Vista 32bit, at most 3.12GB RAM is available if more than 3GB RAM is installed.

     

    For more information, you can refer to the following articles:

    http://support.microsoft.com/kb/929605/en-us

    http://support.microsoft.com/kb/946003/en-us

     

    Hope it helps.

     

    Tim Quan - MSFT

    Thursday, April 17, 2008 3:36 AM
    Moderator
  • Tim,

    Thanks for your time and effort, it was very helpful.

    Regards

    Streve

    Friday, July 25, 2008 9:11 PM