VRAM Issue, Need Some Help

So here's the story:

I just recently upgraded my Vista 64bit system to Windows 7 64bit, and installed a new mobo (ASRock Extreme3 Gen3), processor (i2500k), and RAM (G.SKill Sniper 8gb) as part of a moderate upgrade while I wait for the new Intel processors and next gen GPUs.

The problem I am having is that in both DxDiag and the SystemLabs Can I Run It, only 720mb of my HD5870's 1gb of VRAM is being detected. However, on the Windows Performance and Information screen that is generated by the Windows Experience Index, under the GPU category, it shows that I do indeed have 1gb of dedicated VRAM:

Display adapter type: ATI Radeon HD 5800 Series

Total available graphics memory: 4819 MB

Dedicated graphics memory: 1024 MB

Dedicated system memory: 0 MB

Shared system memory: 3795 MB

Display adapter driver version: 8.902.0.0

Primary monitor resolution: 1920x1200

DirectX version: DirectX 10

My question(s) then are why is it that the previous two applications are only detecting 720mb of VRAM, and why is the above info. listing my PC as having 0mb of dedicated system memory?

To be clear, I have already flashed the BIOS and uninstalled and reinstalled the latest ATI drivers.

Any tips, work-arounds, or solutions would be much appreciated.

Cheers.

Ignore what Windows tells you, and most definitely ignore 'Can You Run It' (never go there again!). I can't give you a definitive answer on why your memory is not being correctly interpreted, but if you know your RAM is there, and you're able to utilize it, just relax.C_Rule

For sure, I was just a bit concerned because I had read that some people have experienced this issue, and because of the misinterpretation, their games performed poorly. I'll keep going through games and see if I notice a performance drop.

Cheers.

[QUOTE="C_Rule"]Ignore what Windows tells you, and most definitely ignore 'Can You Run It' (never go there again!). I can't give you a definitive answer on why your memory is not being correctly interpreted, but if you know your RAM is there, and you're able to utilize it, just relax.aeatyes

For sure, I was just a bit concerned because I had read that some people have experienced this issue, and because of the misinterpretation, their games performed poorly. I'll keep going through games and see if I notice a performance drop.

Cheers.

[QUOTE="aeatyes"]

[QUOTE="C_Rule"]Ignore what Windows tells you, and most definitely ignore 'Can You Run It' (never go there again!). I can't give you a definitive answer on why your memory is not being correctly interpreted, but if you know your RAM is there, and you're able to utilize it, just relax.C_Rule

For sure, I was just a bit concerned because I had read that some people have experienced this issue, and because of the misinterpretation, their games performed poorly. I'll keep going through games and see if I notice a performance drop.

Cheers.

I just installed the Witcher 2, and it scanned my system, and said that I had about 700mb of VRAM, so there is definitely a problem.

Not really sure what to do as my BIOS doesn't have any VRAM settings, and I'm not even sure it's a Mobo issue; it could be a MS issue.

In short,

System memory is used to run windows and apps.

magicalclick

I know that; what I am saying is that my OS and various software applications are only detecting about 700mb of my 1gb of VRAM from my HD 5870.

I listed those specs because they were the only thing that actually said I had 1gb of dedicated video memory; both dxdiag, system labs, and various software apps on my computer, as I said, are only reading 700mg of my 1gb total.

I've come here because I am hoping that someone will know what to do, or will have at least had a little experience with this issue.

Cheers.