topic RAM in Vaio VGN AW21M in PCs & Accessories https://community.sony.lt/t5/pcs-accessories/ram-in-vaio-vgn-aw21m/m-p/202578#M44141 <HTML><HEAD></HEAD><BODY><P>Very very common problem with 4Gb RAM installed.</P><P></P><P>From what I can gather (extensive research @ MSDN / Forums) there seems to be 1gb Ram reserved by your system for hardware, which the OS cannot use/access (hence 3gb available)</P><P></P><P>i.e reserved for your graphics card, if you extend the memory usage in the bios above the 256mb built in.</P><P></P><P>Basically, although windows recognises the 4gb, your motherboard reserves 1gb for other hardware usage. Sometimes you can control the memory usage/reserve in the BIOS setup, but obviously that is dependant on your systm, and I'm not familiar with the one on the AW21M.</P><P></P><P>Hope this helps! (Please mark as "Helpful Reply" if it does <img class="lia-deferred-image lia-image-emoji" src="https://community.sony.lt/html/@3191CA7235A406D833094BA2DD1CF2FF/images/smilies/011.png" alt=":slight_smile:" title=":slight_smile:" /> )</P></BODY></HTML> Fri, 25 Feb 2011 23:18:32 GMT MurdoD 2011-02-25T23:18:32Z RAM in Vaio VGN AW21M https://community.sony.lt/t5/pcs-accessories/ram-in-vaio-vgn-aw21m/m-p/202577#M44140 <HTML><HEAD></HEAD><BODY><P>Have a Vaio since 2 years and switched recently to Windows7. 4GB RAM was installed already when I bought the Vaio. However, the system info says only 2,95 GB can be used. Don't know if this message was displayed already under VISTA.&nbsp; Does anyone know if this is an performance critical issue and how to get it solved ( so that all 4 GB can be used ) ?&nbsp; Thanks, Gerd </P></BODY></HTML> Fri, 25 Feb 2011 10:52:17 GMT https://community.sony.lt/t5/pcs-accessories/ram-in-vaio-vgn-aw21m/m-p/202577#M44140 gerhagen7 2011-02-25T10:52:17Z RAM in Vaio VGN AW21M https://community.sony.lt/t5/pcs-accessories/ram-in-vaio-vgn-aw21m/m-p/202578#M44141 <HTML><HEAD></HEAD><BODY><P>Very very common problem with 4Gb RAM installed.</P><P></P><P>From what I can gather (extensive research @ MSDN / Forums) there seems to be 1gb Ram reserved by your system for hardware, which the OS cannot use/access (hence 3gb available)</P><P></P><P>i.e reserved for your graphics card, if you extend the memory usage in the bios above the 256mb built in.</P><P></P><P>Basically, although windows recognises the 4gb, your motherboard reserves 1gb for other hardware usage. Sometimes you can control the memory usage/reserve in the BIOS setup, but obviously that is dependant on your systm, and I'm not familiar with the one on the AW21M.</P><P></P><P>Hope this helps! (Please mark as "Helpful Reply" if it does <img class="lia-deferred-image lia-image-emoji" src="https://community.sony.lt/html/@3191CA7235A406D833094BA2DD1CF2FF/images/smilies/011.png" alt=":slight_smile:" title=":slight_smile:" /> )</P></BODY></HTML> Fri, 25 Feb 2011 23:18:32 GMT https://community.sony.lt/t5/pcs-accessories/ram-in-vaio-vgn-aw21m/m-p/202578#M44141 MurdoD 2011-02-25T23:18:32Z