Comments on: Windows Vista: 3GB or 4GB RAM? http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/ Software Development Topics Thu, 19 Jan 2012 13:36:14 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Revitol Stretch Mark Cream http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1343 Revitol Stretch Mark Cream Sat, 02 Jul 2011 20:28:16 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1343 I belleve the issue has been fixed with one of the more recent updates, hasn't it? I belleve the issue has been fixed with one of the more recent updates, hasn’t it?

]]> By: venkatesh http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1342 venkatesh Mon, 21 Mar 2011 01:22:54 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1342 hey i had 4gb ram but it showin 2.75GB is their any problem..............................plx plx reply hey i had 4gb ram but it showin 2.75GB is their any problem…………………………plx plx reply

]]> By: Terri http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1341 Terri Wed, 13 Oct 2010 15:38:34 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1341 try msconfig - boot - advanced options - then UNCHECK the MAximum Memory function - also the dxdiag.exe function never lies - the unchecking of the maximum memory function followed by a restart showed full 4GB - not 4GB ( 3GB used ) - this is using Vista Ultimate x64 on an Acer Aspire 6935 try msconfig – boot – advanced options – then UNCHECK the MAximum Memory function – also the dxdiag.exe function never lies – the unchecking of the maximum memory function followed by a restart showed full 4GB – not 4GB ( 3GB used ) – this is using Vista Ultimate x64 on an Acer Aspire 6935

]]> By: Lewis http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1340 Lewis Sun, 26 Sep 2010 20:24:33 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1340 reply to original post, it is possible to run vista on 512MB of RAM, 1gb is better though reply to original post, it is possible to run vista on 512MB of RAM, 1gb is better though

]]> By: sabith http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1339 sabith Sat, 18 Sep 2010 10:01:20 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1339 i've installed 6 GB RAM in windows server 2003 and in BIOS it shows 6 GB RAM and when i check in windows server 2003 it shows 4GB RAM only ,why i’ve installed 6 GB RAM in windows server 2003 and in BIOS it shows 6 GB RAM and when i check in windows server 2003 it shows 4GB RAM only ,why

]]> By: Sage http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1338 Sage Thu, 12 Aug 2010 21:16:45 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1338 Paul, the reason you don't see this problem with less than 4gb of ram is that there is still addressable space available. If you have 3gb of ram, there is 1 gig of addressable space that can be used for MMIO addressing, without impacting the physical ram. If you have 4gb ram, that MMIO space is going to lower the actual physical ram that you can access. Paul, the reason you don’t see this problem with less than 4gb of ram is that there is still addressable space available. If you have 3gb of ram, there is 1 gig of addressable space that can be used for MMIO addressing, without impacting the physical ram. If you have 4gb ram, that MMIO space is going to lower the actual physical ram that you can access.

]]> By: Advantages of 64-Bit Windows http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1337 Advantages of 64-Bit Windows Tue, 10 Aug 2010 15:44:22 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1337 [...] Now in August 2010, most of the incompatibilities have been solved as x64 has gone mainstream.  At the local Best Buy today, perhaps 90% of the full-featured laptops run 64-bit Windows 7 Home Premium.  This makes sense because most new laptops come with 4-8 GB RAM, and you must run 64-bit Windows to access more than 3GB RAM. [...] [...] Now in August 2010, most of the incompatibilities have been solved as x64 has gone mainstream.  At the local Best Buy today, perhaps 90% of the full-featured laptops run 64-bit Windows 7 Home Premium.  This makes sense because most new laptops come with 4-8 GB RAM, and you must run 64-bit Windows to access more than 3GB RAM. [...]

]]> By: kmac http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1336 kmac Tue, 27 Jul 2010 17:22:20 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1336 1GB is what windows vista requires as minimum not 2GB. Thank-you, Microsoft Tech 1GB is what windows vista requires as minimum not 2GB.
Thank-you, Microsoft Tech

]]> By: Paul Doyle http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1335 Paul Doyle Mon, 01 Mar 2010 16:03:01 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1335 "So if a PC has 4 GB RAM installed, some of that 4 GB is used for MMIO. If a PC has only 3 GB RAM installed, the entire 3 GB will likely be available since MMIO typically uses memory above the 3 GB address." "Above the 3 GB address"? This doesn't make any sense. If a PC has only 3 GB, where "above" 3 GB will the MMIO get mapped? In this example, there isn't any more memory above the 3 GB. So where does it get mapped? Also, doesn't MMIO need to get mapped on PCs with 2 GB and 1 GB of system memory, as well? In those cases, after the MMIO is mapped, wouldn't users have the same problem, seeing only around 1.1 GB, and .1 GB, (only 100 megabytes!) of usable memory, respectively? “So if a PC has 4 GB RAM installed, some of that 4 GB is used for MMIO. If a PC has only 3 GB RAM installed, the entire 3 GB will likely be available since MMIO typically uses memory above the 3 GB address.”

“Above the 3 GB address”? This doesn’t make any sense. If a PC has only 3 GB, where “above” 3 GB will the MMIO get mapped? In this example, there isn’t any more memory above the 3 GB. So where does it get mapped?

Also, doesn’t MMIO need to get mapped on PCs with 2 GB and 1 GB of system memory, as well? In those cases, after the MMIO is mapped, wouldn’t users have the same problem, seeing only around 1.1 GB, and .1 GB, (only 100 megabytes!) of usable memory, respectively?

]]> By: Dodo http://www.devtopics.com/windows-vista-3gb-or-4gb-ram/#comment-1334 Dodo Mon, 01 Mar 2010 15:33:09 +0000 http://www.mini-tools.com/at2/devtop/wordpress/windows-vista-3gb-or-4gb-ram/#comment-1334 @bobmonkey: Then you probably have Vista x64. @bobmonkey: Then you probably have Vista x64.

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