only 2.5 gigs ram in 64 bit?

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  1. Posts : 13
    Windows 7 Ultimate 64 Bit
       #1

    only 2.5 gigs ram in 64 bit?


    Hey Guys,
    I was going to buy Windows 7 anyway, so i decided to get 64bit so i could use all of the ram on my computer (4gigs, plus my SLi video cards have 500mb or 1gig each, can't remember)
    Since vista 32bit could only use 3.5 gigs

    but now to my dismay it seems like i can still only use 2.5 gigs of ram

    Imageshack - 66298765
    Imageshack - 86877221

    Anyone know how to fix this?
    I read something about remapping ram or something but how do you do that or how can you tell if it is possible?
    Thanks for any help
      My Computer


  2. Posts : 1,326
    Windows 10 Professional 64-bit
       #2

    Do your BIOS see all 4 GB of RAM? If not, I may suggest you a BIOS update.
      My Computer


  3. Posts : 2,651
    W7 RTM Ultimate x64
       #3

    Have you changed anything in MSConfig?
      My Computer


  4. Posts : 1,117
    Windows 7 Ultimate x64
       #4

    open task manager, click resource monitor, click memory tab to see exactly how your ram is being used.

    you have 4 installed, and can use 2.5... the operating system is going to use part of that 4 right off the bat--more or less depending upon what you have starting automatically (services / programs).
      My Computer


  5. Posts : 17,796
    Windows 10, Home Clean Install
       #5

    If you can get into bios, there may be a setting for max cpu or max ram, uncheck the box.

    Before you attempt anything like this, make a system image.
      My Computer


  6. Posts : 13
    Windows 7 Ultimate 64 Bit
    Thread Starter
       #6

    @mpcrsc562:
    The second picture is of the task manager
    the resource manager shows the same thing
    4 gigs installed, total ram is 2.5gigs

    @
    Uber Philf
    Nope, just installed it about an hour ago havent messed with anything really

    @
    Lebon14
    Gonna check right now
      My Computer


  7. Posts : 13
    Windows 7 Ultimate 64 Bit
    Thread Starter
       #7

    Just checked bios-
    it says total recognized ram is 4000
    but total usable ram is 2500
    and there are no options about ram anywhere

    EDIT:
    also, i have not changed anything in msconfig (i just installed windows 7 about an hour ago, i havent changed any system settings really)
    and the second picture in my first post IS of task manager
      My Computer


  8. Posts : 17,796
    Windows 10, Home Clean Install
       #8

    Just a guess, but you did not install additional ram, did you?
      My Computer


  9. Posts : 1,117
    Windows 7 Ultimate x64
       #9

    mpcrsc562 said:
    open task manager, click resource monitor, click memory tab to see exactly how your ram is being used.

    you have 4 installed, and can use 2.5... the operating system is going to use part of that 4 right off the bat--more or less depending upon what you have starting automatically (services / programs).

    it's a matter of math...
    you have 4 installed...
    you have a certain amount in use...
    you have a certain amount modified...
    you have a certain amount in stand by...
    and you have a certain amount free...
    not knowing what is running on your system at any specific time, it seems o.k. to me that you'd have 2.5 ready and available to be used.
    (snapshot of my system running -- and according to the pic, i have 8 installed, but only 5.9 available. that doesn't mean i'm not using my "whole 8." it's just out of my eight, i have access to 5.9)
    Last edited by mpcrsc562; 09 Mar 2010 at 08:23.
      My Computer


  10. Posts : 13
    Windows 7 Ultimate 64 Bit
    Thread Starter
       #10

    @richc46:
    did not install? what do you mean?
    i have 2x2gb ram cards
    @
    mpcrsc562
    I know, but both your total and installed are 8000
    my installed is 4000 but my total is 2500
    heres another pic for clarification

    http://img138.imageshack.us/i/79250935.png/
      My Computer


 
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