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4gig of ram showing up as 3gig in 64bit vista

  • 09-07-2009 8:24pm
    #1
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭


    As title, any ideas why?


Comments

  • #2
    GerardKeating
    Registered Users, Registered Users 2 Posts: 7,721 ✭✭✭GerardKeating


    k99_64 wrote: »
    As title, any ideas why?

    What does the BIOS report as present?


  • #3
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    4096mb memory.


  • #4
    Spear
    Moderators, Computer Games Moderators, Technology & Internet Moderators, Help & Feedback Category Moderators Posts: 25,518 CMod ✭✭✭✭Spear


    k99_64 wrote: »
    4096mb memory.

    Have you turned on the BIOS option to remap addresses above the 64bit limit?


  • #5
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    Spear wrote: »
    Have you turned on the BIOS option to remap addresses above the 64bit limit?


    How would one do that?


  • #6
    Spear
    Moderators, Computer Games Moderators, Technology & Internet Moderators, Help & Feedback Category Moderators Posts: 25,518 CMod ✭✭✭✭Spear


    k99_64 wrote: »
    How would one do that?

    Just find the option in the BIOS and turn it on. The exact wording may vary somewhat though.


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  • #7
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    cheers spear


  • #8
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    Ok the remapping was on auto, changing 4gb to 3072mb, i disabled it and my avaible memory went to 3072, I then enabled remapping again and its changing 4gb to 3072


  • #9
    Spear
    Moderators, Computer Games Moderators, Technology & Internet Moderators, Help & Feedback Category Moderators Posts: 25,518 CMod ✭✭✭✭Spear


    k99_64 wrote: »
    Ok the remapping was on auto, changing 4gb to 3072mb, i disabled it and my avaible memory went to 3072, I then enabled remapping again and its changing 4gb to 3072

    Remapping should definitely be on. What video card do you have? Is it integrated? Have you installed SP1 or higher?


  • #10
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    Spear wrote: »
    Remapping should definitely be on. What video card do you have? Is it integrated? Have you installed SP1 or higher?

    8600 gts, 1gig on the card, i have installed all the updates its promoted me too, it was showing up 4gigs when i first got the comp built, now its showing up 3gigs.


  • #11
    Blazer
    Registered Users, Registered Users 2 Posts: 17,464 ✭✭✭✭Blazer


    have you done any bios updates?


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  • #12
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    not a one.


  • #13
    Spear
    Moderators, Computer Games Moderators, Technology & Internet Moderators, Help & Feedback Category Moderators Posts: 25,518 CMod ✭✭✭✭Spear


    k99_64 wrote: »
    8600 gts, 1gig on the card, i have installed all the updates its promoted me too, it was showing up 4gigs when i first got the comp built, now its showing up 3gigs.

    Check the system properties window in Vista. From SP1 onwards it should show the physically present memory, regardless of the memory mapping.


  • #14
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    Its saying 3071mb ram

    My apologies i thought i had sp1 pack installed, installing now.


  • #15
    k99_64
    Registered Users, Registered Users 2 Posts: 617 ✭✭✭k99_64


    Sp1 did the trick! WOO!


  • #16
    Blazer
    Registered Users, Registered Users 2 Posts: 17,464 ✭✭✭✭Blazer


    nice one..now you can upgrade it to SP2 :P


  • #17
    Cuddlesworth
    Registered Users, Registered Users 2 Posts: 13,998 ✭✭✭✭Cuddlesworth


    k99_64 wrote: »
    Sp1 did the trick! WOO!

    Are you sure you have a 64bit OS installed? Sounds like its 32.......


  • #18
    Spear
    Moderators, Computer Games Moderators, Technology & Internet Moderators, Help & Feedback Category Moderators Posts: 25,518 CMod ✭✭✭✭Spear


    Cuddlesworth wrote: »
    Are you sure you have a 64bit OS installed? Sounds like its 32.......

    I'm a bit skeptical myself, but I don't know of any surefire to check the addressable memory versus the phsyical in Vista.


  • #19
    Cuddlesworth
    Registered Users, Registered Users 2 Posts: 13,998 ✭✭✭✭Cuddlesworth


    Spear wrote: »
    I'm a bit skeptical myself, but I don't know of any surefire to check the addressable memory versus the phsyical in Vista.

    Right under the ram in System properties in Vista is system type followed by either 32 or 64 bit.

    If you needed to install a service pack to view the remaining ram then my first assumption is that you have a 32 bit OS, as the patch to allow users to see the total ram rather then the addressable ram was issued to 32 bit Windows OS's.


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