Here is a good KB article on the issue. Your system is reserving the 1 GB
of memory addresses to be used by hardware cards/interfaces such as your
graphics card which have their on onboard memory and regretfully the 1GB is
not available to your system.
http://support.microsoft.com/kb/929605/en-us
"DP" <DP@xxxxxx> wrote in message
news:45C805FB-9A4C-4D58-980A-C85477229937@xxxxxx
Quote:
> 4GB DDR SDRAM DIMM ( Two @ Corsair XMS Twin2048-3200c2) on MSI
> 865PE/GNeo2
> Motherboard with a Pentium 4 3.0GHz CPU
>
> SiSoft Sandra is indicating Physical memory of four 1GB Dimm SDRAM
> double-bank
>
> Vista System page is indicating Memory (Ram) of 3070 MB
>
> Why and what is the significance if any?
>
>
>
>