Hello ADO. Inconnu,
For the BIOS check the vendor support why it does not recognize the full
4GB. To get in Vista full 4GB, you can use the 64bit version, otherwise like
you say it is not possible by design to get full 4 GB.
Best regards
Meinolf Weber
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http://www.dts-l.org/goodpost.htm Quote:
> I bought my SonyVaio Notebook Computer (VGN-SZ57N, with 1GB of Ram)
> coming with an Vista Business installed, I can't work with its poor
> performance, so I bought / installed another new 4GB(2x2GB) Ram to
> replace the original 1GB of Ram(Product Spec. told that it support 4GB
> of Ram). As a result I realized both the Bios and Vista the OS seeing
> only 3GB(actually 3070MB) Physical Memory. I google around and I heard
> about Hardware's lacking of remapping feature and Software's 32 bit OS
> limitation issues, but I hope I still can hear someone here told me
> that this is an deadend for getting my current computer to see and
> work with 4GB of Ram.
>
> Please let me know whether this is a motherboard limitation or this is
> a matter of 32bit versions of Windows, any explaination... Thanks so
> much for your kindly help, I just felt sick of keeping search on this
> topic and I think I can accept all of this if this is a matter of time
> (People told me SP1 could solve all of this) or money (They told me I
> should upgrade to 64bit Vista Ultimate to work 4GB Ram). Hey, anyway
> thanks again, have a nice day. 
>
> A.
>