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Windows 7: Why is my graphics card only displaying 742 MB


03 Oct 2011   #1

Windows 7 Ultimate x64
 
 
Why is my graphics card only displaying 742 MB

Hello,

I have a ATI Radeon HD 5770 Graphics Card and have noticed in both the dxdiag utility and on systemrequirementslab.com that I have 742 MB graphics.

I know I have a 1 GB graphics card and GPU-Z also shows that I have 1024 MB video memory available.

I have attached a screenshot below.

Ben.



Attached Thumbnails
Why is my graphics card only displaying 742 MB-graphics-card-problem.jpg  
My System SpecsSystem Spec
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04 Oct 2011   #2

 
 

i would suggest starting with a complete uninstall of the drivers, use a sweaper to clean any remnants and reinstall.
My System SpecsSystem Spec
04 Oct 2011   #3

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by gazz9496 View Post
i would suggest starting with a complete uninstall of the drivers, use a sweaper to clean any remnants and reinstall.
Sorry I should have mentioned this is a fresh install of Windows, would you say Perfect Uninstaller would be a sweeper to clean any remnants up?
My System SpecsSystem Spec
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04 Oct 2011   #4
Microsoft MVP

Win 7 Ultimate x64
 
 

Bug in dxdiag,

Direct-X diagnostics tool (DXDIAG) may report an unexpected value for the display adapters memory.

Not an AMD thing as it can happen with Nvidia cards as well.
My System SpecsSystem Spec
05 Oct 2011   #5

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by stormy13 View Post
Bug in dxdiag,

Direct-X diagnostics tool (DXDIAG) may report an unexpected value for the display adapters memory.

Not an AMD thing as it can happen with Nvidia cards as well.
Ah okay, I asked someone about it today and they told me a very similar thing, so it's nothing to really be worried about?
My System SpecsSystem Spec
05 Oct 2011   #6
Microsoft MVP

Win 7 Ultimate x64
 
 

If something like this,

GPU-Z Video card GPU Information Utility

shows the correct memory amount, then I wouldn't worry about it and wait for Microsoft to put out the update that fixes it.
My System SpecsSystem Spec
05 Oct 2011   #7

Windows 7 Ultimate x64
 
 

That's okay then, GPU-Z is showing the correct memory amount of 1024 MB on my PC.

My laptop has 512 MB video memory although dxdiag shows it has 2249 MB which I know for sure is incorrect.
My System SpecsSystem Spec
05 Oct 2011   #8
Microsoft MVP

Win 7 Ultimate x64
 
 

Actually what your laptop is showing is this,

Video Memory Virtualization - A Brief Guide
My System SpecsSystem Spec
07 Oct 2011   #9

Windows 7 Ultimate x64
 
 

Thanks for the Video Memory Virtualization guide Richard. I may wait and see what Microsoft come out with update wise for this bug in dxdiag.
My System SpecsSystem Spec
15 Oct 2011   #10

windows 7 home premium 64bit
 
 

quick question... what website has that bf3 test on it?
My System SpecsSystem Spec
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 Why is my graphics card only displaying 742 MB




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