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    VRAM adjustments

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by teedo, Sep 28, 2010.

  1. teedo

    teedo Newbie

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    Hi,

    Is there any way to adjust the VRAM on my laptop? It is a SONY VAIO VPCF126FM with i7 processor, 6 gb of ram and 1 gb dedictaed VRAM on GE Force GT 330M. Info shows that it has 3,831 mb available, 1,024 mb dedicated and 2,807 mb shared system.

    I work from home by rdp and don't need that much VRAM available. What comes onboard is good enough. I don't do gaming or any other task that requires that much VRAM. Is there any way to decrease the amount of shared system ram?

    PLEASE, no puns, no negative comments! I see them all the time on these boards and it bothers me that people can't just answer the questions. I apologize if that offends anyone.

    Thanks for any help on this.
    Teedo
     
  2. City Pig

    City Pig Notebook Virtuoso

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    It should only share RAM if it needs to. If it doesn't need to share RAM, it won't.
     
  3. bennyg

    bennyg Notebook Virtuoso

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    "dedicated VRAM" is physical RAM chips on the graphics board. Only integrated or verylowend GPUs have interfaces whereby they steal system RAM (nvidia=Turbocache, ati=Hypermemory) because they are cheeeeeep.

    Open resmon.exe and look on the memory page (assuming win7) and tell us if the "Hardware Reserved" (grey) is >1Gb.

    Dedicated VRAM hasn't ever been mirrored in system RAM in PCIe, afaik. (was an AGP thing)
     
  4. JAMM0N

    JAMM0N Notebook Consultant

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    probably not. its an automatic thing. as bennyg stated you can't do much about it and as much as you would like to try to keep it seperate it won't.

    Ram > Cpu > Gpu and in reverse order.
     
  5. teedo

    teedo Newbie

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    Under resmon.exe the "Hardware Reserved" (grey) is 18 MB. I'm not sure what that means.

    Teedo

     
  6. JAMM0N

    JAMM0N Notebook Consultant

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    its like your backup memory when your computer is in overload. i'm not sure about how you can get more but bennyg might be able to help you out.
     
  7. bennyg

    bennyg Notebook Virtuoso

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    Basically, turns out City Pig answered the question satisfactorily in the 1st reply above ^^^.

    There looks like no hardware-level allocation going on. Which means Win7 can allocate as needs be, the only situation system RAM will start being used is if you use the GPU in a way that the entire 1Gb of VRAM is filled and still more is needed. Which the OP has said won't happen.

    Win7 and Vista drastically underestimate how much RAM is "free", Superfetch caches a lot of crap (like commonly run program data) into RAM in anticipation of you using it, but when that RAM is needed it quickly boots that cached data out.
     
  8. teedo

    teedo Newbie

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    Hey guys,

    I guess I really don't need to be concerned about it at all unless there is a video ram demand above 1gb, which shouldn't happen (I think)...

    Thank you.
    :)

    teedo