Re: Windows Vista 32 Bit only shows 3GB of 4GB of ram in the system
On Fri, 25 May 2007 16:27:00 -0700, johnwbrock
>My bios shows all 4 gigs of the ram but for some reason my windows only
>detects 3 gigs.
>Does anyone know how to correct this? My motherboard is a Gigabyte
>GA-59SLI-G5 so i know that isnt the issue. Is it just a flat out bug in
>Vista because it should read all 4GB of ram. Also, Im running 2 Nvidia
>GeForce 7950 GT Superclocked graphic cards with 512 MB of ram each so its not
>stealing ram for resources. The Ram is 4 1G Crossair PC gaming sticks.
>When I first installed the ram and then installed vista it only showed up
>with 1 GB of ram. I then removed one stick of ram and rebooted it. It then
>showed up with 3 GB of ram. I then installed the 4 stick back in and
>restarted and it still only shows 3 GB of ram.
32-bit XP can use up to 4GB. However the 4GB address space has to be
shared with memory used for other devices. So Windows (not just XP but
all 32-bit versions, including 32-bit Vista) can't use that entire 4GB
How much it can use is around 3GB, but depends on what devices are
installed. It's normally a little more than 3GB. So installing more
than about 3GB of RAM is usually a waste of money.
Ken Blake, Microsoft MVP Windows - Shell/User
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