windows 7 64 on 4 GB ram show 3.50

Discussion in 'Windows 7' started by mr-bond, Dec 17, 2009.

  1. mr-bond

    mr-bond MDL Novice

    Aug 13, 2009
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    hi all i have insert windows 7 64 bit on my dell 9150 and i have 4 GB ram but its say i have 3.50 GB usable what is wrong here any help pls tanks all
     
  2. Brainsuck

    Brainsuck MDL Addicted

    Oct 9, 2009
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    Maybe your video card that is build in is using the rest :eek::eek::eek:
     
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  3. mr-bond

    mr-bond MDL Novice

    Aug 13, 2009
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    my video card is radeon x600
     
  4. nrgz

    nrgz MDL Novice

    Nov 1, 2009
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    Its because 64 bit only supports upto 3.5 gb of ram untill unless to apply some hacks.
     
  5. odinthegreatone

    odinthegreatone MDL Junior Member

    Dec 4, 2008
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    64 bit supports up to 128TB of ram if I'm not mistaken, nrgz not 3.5gb, I think you mean 32 bit.
     
  6. secr9tos

    secr9tos MDL Addicted

    Jul 28, 2009
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    @nrgz: Nope, x64 supports ( theoretically ) 2^64 bytes of ram. U are talking about x86
     
  7. nrgz

    nrgz MDL Novice

    Nov 1, 2009
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    oops my bad, something was happening in my mind at that time lol...
     
  8. mr-bond

    mr-bond MDL Novice

    Aug 13, 2009
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    see this

    what i can do :)
     

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  9. vladxed666

    vladxed666 MDL Senior Member

    Sep 19, 2009
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    did you apply something from starforce like the 4GB.exe?
     
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  10. berdinatilli

    berdinatilli MDL Novice

    Aug 21, 2009
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    some motherboards require you to enable a 64bit OS option in the bios...

    i had this issue some years ago...

    good luck
    berdi
     
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  11. burfadel

    burfadel MDL EXE>MSP/CAB

    Aug 19, 2009
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    I haven't looked up that laptop, but is the video memory dedicated or shared? Shared video memory means the video card will physically use system RAM. Its got nothing to do with the 32 bit limitation! Funnily enough, shared video RAM on 32 bit would result in a similar amount of useable memory, since on 32 bit the address space is used for the video card dedicated memory anyway :) (it would still be less due to other system devices).

    If it is dedicated, try changing the value for Plug and play OS in the bios. If it is set to yes, try changing it to no and see if it makes any difference. Likewise if set to no change it to yes... I prefer no regardless of the OS installed simply because it allows all attached devices to be detected before loading Windows. I've had no issues regarding to memory limitations by doing so.
     
  12. asabater

    asabater MDL Member

    Sep 6, 2008
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    #13 asabater, Dec 17, 2009
    Last edited: Dec 18, 2009
    find in your bios in chipset configuration an option like MEMORY REMAP FEATURE and Enable it (MEMORY HOLE Disabled)

    saludos from spain:)
     
  13. Judas543

    Judas543 MDL Novice

    Jul 16, 2009
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    well when i have both my on board graphics and integrated my ram is 5.50

    when I disable integrated graphics, I get back my 6 GB ram
     
  14. juzz

    juzz MDL Member

    Jun 28, 2008
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  15. HSChronic

    HSChronic MDL Expert

    Aug 25, 2007
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    #16 HSChronic, Dec 18, 2009
    Last edited by a moderator: Apr 20, 2017
    did the system come with the 4gb of RAM or did you put in the RAM?

    Are they matched sticks, same type same size etc?

    Are they supported by that Dell mobo?

    I had an Asus motherboard that had 4gb of RAM in it but the system would only show 2gb usable because the sticks were not all the same size and matched.

    I had 2x512, 1x1gb, 1x2GB, and the board would only use the highest ranked stick because they didn't match. Replaced all those with 1gb chips all the same make and model and now the board sees all 4.

    Code:
    Your computer supports a maximum of 4 GB of memory when you use four 1-GB DIMMs. Current operating systems, such as Microsoft® Windows® XP, can only use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than 4 GB. Certain components within the computer require address space in the 4-GB range. Any address space reserved for these components cannot be used by computer memory.
    Do you have 4 1gb sticks like the manual says to use?
     
  16. rbjack

    rbjack MDL Junior Member

    Sep 24, 2009
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    in some cases setting the amount of ram in the boot config may help resolve problems with video cards crashing (ATI) and amount of memory being available.
    msconfig -> [boot] -> +advanced options+ enable memory checkmark and specify how much system ram. apply and reboot.
    removal of 3GB cmd switch if it was enabled from a 32bit install...