Vista x64 8GB + Video RAM?

Discussion in 'Windows Vista Performance' started by PaxeSalute, Apr 11, 2008.

  1. PaxeSalute

    PaxeSalute Guest

    Hello everyone,

    This is my doubt,

    I have 8GB RAM installed (max for my MoBo) and 2 Video Card 512MB.

    So this will mean that my Vista Home Premium x64 have to deal with 9GB
    RAM.

    How can I be sure that it takes full advantage of all RAM?
    In My Computer > property shows 8196MB RAM, my doubt is if really when
    I am in Crossfire mode, my PC is able to use the 1024MB Video Ram to get
    the best performance in 3D Game.

    If somebody can give me a way to check and even better to allow Vista
    to use all 9024MB it will be great.

    Thks in advance foryour answers
     
    PaxeSalute, Apr 11, 2008
    #1
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  2. PaxeSalute

    Jason Guest

    If it is showing that much RAM already then rest assured it is using all of it.


    Post Originated from http://www.VistaForums.com Vista Support Forums
     
    Jason, Apr 11, 2008
    #2
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  3. PaxeSalute

    bistro Guest

    You are well beyond Vista 64 RAM requirements. Vista 64 is not even
    -close- to using all of that RAM. You've got nothing to be concerned
    about. No need to tweak anything.


    --
    bistro

    Please post back with results! Help others to learn!

    intel q6600 cpu @ 3.2ghz - evga nforce 680i sli mobo - 4gb ocz reaper
    pc2-8500 - vista ultimate 64-bit
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    bistro, Apr 11, 2008
    #3
  4. PaxeSalute

    PaxeSalute Guest


    Thks Bistro and Jason,
    I just wanted to make sure that Vista with 8GB RAM will not just forget
    about the 2X512 Video RAM, because as you say it doesn't need 8GB memory
    to run but my 3D games will make good use of the 1024MB video RAM.

    Since my RAM Memories are DUAL Channel I think that I cannot just leave
    6GB which will be enough to run Vista, and I certainly don't want to go
    lower to 4GB RAM.

    Thks
     
    PaxeSalute, Apr 11, 2008
    #4

  5. Two points here:

    1. It's not a matter of "Vista 64 RAM requirements." How much RAM you
    need for good performance depends on what apps you run and how large
    are the files you open with them. Although it's true that very few
    people need as much as 8MB, depending on how *you* use your computer,
    it's at least possible that you might.

    2. You are apparently confused in your understanding of main memory
    (your 8GB) and the 1GB video RAM. They are not the same and not used
    in the same way at all. You can't add them together (as you did in
    your original message) to get a total of 9GB because they are two
    completely different resources. It's like apples and oranges.

    Adding main memory and video memory together is sort of like adding
    together the size of your hard drive and the capacity of your DVD
    drive. They are used completely differently and separately, and their
    sum is meaningless.

    Yes, if you have 1GB of video RAM, your games (and everything else)
    should use them properly. That's a lot of video RAM, and whether that
    much will improve performance depends on what the games are, but not
    being a player of computer games myself, I couldn't comment on what it
    might do for you even if you told me what games they were.
     
    Ken Blake, MVP, Apr 11, 2008
    #5
  6. PaxeSalute

    PaxeSalute Guest

    : Two points here
    -
    Ken Blake, Microsoft MVP - Windows Desktop Experienc
     
    PaxeSalute, Apr 12, 2008
    #6


  7. Is this your message below? It's very had to understand it as such
    because it appears that for some reason you put a > sign in front of
    every line. That makes it look like quoted material instead of
    something you typed.




    What you read is very much wrong. You should *never* disable the Page
    File, no matter how much RAM you have. Windows preallocates memory to
    the Page File in anticipation of possibly needing to use it. If you
    disable the Page File, those allocations necessarily get made to real
    memory instead, and the result is that you can never use that part of
    your RAM.

    Moreover, there is no possible benefit to disabling it. If it's not
    needed, it won't be used. Disabling it can only hurt you, and never
    help.



    If you have a second *physical* drive (not just a second partition),
    moving it there is normally a good idea. Your objective should be to
    minimize head movement to and from the page file, and the way to
    accomplish that is to put it on the most-used partition of your
    least-used physical drive. However if you move it away from C:, also
    keep a small (200MB) page file on C:.

    For more information on this, read this excellent article by the late
    MVP, Alex Nichol: "Virtual Memory in Windows XP" at
    http://aumha.org/win5/a/xpvm.htm

    Also note that with as much as 8GB of RAM, you will very likely never
    (or hardly ever) use the page file at all, so any changes you make to
    its settings will have no effect on your performance one way or
    another. Still, I wouldn't disable it.
     
    Ken Blake, MVP, Apr 12, 2008
    #7
  8. PaxeSalute

    PaxeSalute Guest

    Thks you again Ken,

    I will take good advise from your posts, keep the thinks as they are
    since so far I did not experience performance problem with the
    applications I use on this PC, mostly 3D games.

    Thks again
     
    PaxeSalute, Apr 12, 2008
    #8

  9. You're welcome. Glad to help.
     
    Ken Blake, MVP, Apr 12, 2008
    #9
  10. PaxeSalute

    Mark H Guest

    Side question, same topic:

    If I have 8 GB RAM, I no longer expect the pagefile to be accessed
    (except the rare occassion.) What is the recommended size for this file that
    will not be used?

    The old thumbrule was one for one, or so (when systems were small,) but
    if it is not being used, why would I let it default to 8GB in size?
    As you stated, the idea is to keep head movement to a minimum. The size
    alone is begining to defeat it's own purpose.
     
    Mark H, Apr 14, 2008
    #10
  11. PaxeSalute

    JW Guest

    Vista will always make use of a paging file. The more memory you have on
    your system the more OS files will be kept in memory and these will be put
    out in your paging file when not used for extended amounts of time.
    Regretfully I can't find the link where I read about this. In any case let
    Windows manage your paging file size.

     
    JW, Apr 14, 2008
    #11
  12. PaxeSalute

    Ken Blake Guest


    It doesn't matter. If it won't get used, its size is irrelevant. I'd just
    accept the Windows default.


    Beware rules of thumb when it comes to the page file. They are almost
    invariably very poor rules. Read the Alex Nichols article I referenced
    below.

     
    Ken Blake, Apr 14, 2008
    #12
  13. PaxeSalute

    PaxeSalute Guest

    Mark,

    If you run Vista, I read that you should leave as minimum 200mb to
    allow your system to do Minidump error report in case one day you have
    problem it could be usefull.
    However if you do not experience problem with your application right
    know, why searching to tweak Paging File. I did it under XP Pro Sp2 x84
    because it meant a great gain in fastness because it cannot take
    advantage of my 8GB except if I enable PAE in BOOT File, but so far I do
    not really use this second OS on my PC Game, only installed it if VISTA
    gives me some compatibility issues with some older games.

    Good Day
     
    PaxeSalute, Apr 14, 2008
    #13
  14. PaxeSalute

    Mark H Guest

    Thanks for the feedback and the link.
    I was mostly curious, not really looking to change anything. Just seems a
    waste to have 8 GB of hard drive space eaten by a file that doesn't do
    anything.

    Well, I shouldn't say "anything." If by chance I run a program that wants to
    assign a very large variable space (making a movie,) then those addresses
    are assigned to the paging file (unless in use) even though the paging file
    may never be accessed. But, since most programs are limited in how much
    memory they can assign for code and variables, even this should not be an
    issue unless you were running several of them at once.

    Oh well... it works... leave it alone.

    Thanks again.


     
    Mark H, Apr 15, 2008
    #14
  15. PaxeSalute

    Ken Blake Guest


    You're welcome. Glad to help.

    Then make the Starting value small (200MB or so) but keep the max large, so
    it can expand to whatever it needs, if it wants to. There's no penalty for
    doing that.

    That *may* save you a little disk space, but bear in mind that if there's a
    possibility that it will expand to 8GB, you need to keep that 8GB free,
    whether it's already allocated to the page file or not. So the saving in
    disk space is mostly illusory.


    --
    Ken Blake - Microsoft MVP Windows: Desktop Experience
    Please reply to the newsgroup


     
    Ken Blake, Apr 15, 2008
    #15
  16. PaxeSalute

    JW Guest

    Here is the Link to an excellent article on larger memory configurations I
    was referring to.

    http://www.tomshardware.com/2008/02/15/vista_workshop/


     
    JW, Apr 15, 2008
    #16

  17. Not true. It may preallocate space in the page file in case it needs
    it, but it doesn't use it unless it needs to.
     
    Ken Blake, MVP, Aug 11, 2009
    #17
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