Just installed 8GB RAM but Windows7 only allowing 7GB

Serenityxo

Serenityxo

Serenityxo

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Joined
27 Dec 2008
Posts
309
Hey, about half an hour ago I installed my shiny new RAM I ordered from here, the product I ordered was 4 x Corsair XMS2 2GB (1x2GB) DDR2 PC2-6400C5 Memory Module (CM2X2G6400C5B4) [CM2X2G6400C5B4]. Link.

The installation went fine, PC booted and whatnot, I decided to check to see if all 8GB was showing/being used and it's not. Windows shows that there's 8GB but only 7GB usable, some screenies of it below.

The OS is Windows 7 Professional x64.

Windows:
Untitled-4.png

http://i721.photobucket.com/albums/ww218/Sereniiity/Untitled-4.png

Everest:
Untitled2.png

http://i721.photobucket.com/albums/ww218/Sereniiity/Untitled2.png

I've been looking through Google and the usual places for help but there seems to be no good real reason for this problem, so I'm wondering if any of you know why/how it's doing it or to fix it.

Thanks :)
 
Not onboard, it's an nVidia 8600GT I had to resort too after my 4870 nearly blowing up. It says;

Total Available Graphics Memory: 3839 MB
Dedicated Video Memory: 512 MB
System Video Memory: 0 MB
Shared System Memory: 3327 MB
 
Serenityxo said:
8GB, I wouldn't be asking if it didn't support it cause I wouldn't have bought it :p
Click to expand...

That may well be the problem I'm afraid:

Microsoft said:
For Windows Vista to use all 4 GB of memory on a computer that has 4 GB of memory installed, the computer must meet the following requirements:

The chipset must support at least 8 GB of address space.....
Click to expand...

When the physical RAM that is installed on a computer equals the address space that is supported by the chipset, the total system memory that is available to the operating system is always less than the physical RAM that is installed. For example, consider a computer that has an Intel 975X chipset that supports 8 GB of address space. If you install 8 GB of RAM, the system memory that is available to the operating system will be reduced by the PCI configuration requirements. In this scenario, PCI configuration requirements reduce the memory that is available to the operating system by an amount that is between approximately 200 MB and approximately 1 GB. The reduction depends on the configuration.
Click to expand...

Source - Here
 
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