Difference between Physical Memory and the Vista System Memory (Ra

[DP]

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?

 

[Colin Barnhorst]

The system properities page is reporting the memory available to user
programs. The BIOS is reserving the remaining for such things as
memory-mapped IO for things like your video card. This is normal. Don't
worry about it.

 

[JW]

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