Problem with ram

Discussion in 'PC Hardware' started by alextheg, Sep 28, 2009.

  1. alextheg

    alextheg Super Moderator
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    #1 alextheg, Sep 28, 2009
    Last edited: Sep 28, 2009
    Hello all. I just installed a new mobo after a bad bios flash. The new mobo is a Gigabyte GA-EG41MF-US2H. All is well except i have 3gb of ram installed and only 2gb useable. CPU-Z shows the full 3gb installed. I have run Resmon and this shows that 1gb is being reserved for hardware. Why ? Im using an Nvidia geforce 8600gt plugged in on the pci-e x16 slot and it has 512mb of ram on the card. As i understand it im not really using anything integrated and dont understand why hardware should be doing this. I have considered bios but there are no updates at the moment. Any help would be appreciated. :D
     
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  2. SixKillerLV

    SixKillerLV MDL Novice

    Sep 28, 2009
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    Well due to mobo chipset limitation you can install single, two or four memory modules. If you install three, only two work.
     
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  3. alextheg

    alextheg Super Moderator
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    In my case i have 4 slots in use as follows:
    dimm 1 = 1gb
    dimm 2 = 512mb
    dimm 3 = 1gb
    dimm 4 = 512mb.
    In win7 system properties it states "3gb ram installed 2gb useable". For some reason my mobo is hijacking 1gb of ram and i dont see why as i have disabled on board graphics, or any other acceleration for that matter. :confused:
     
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  4. SixKillerLV

    SixKillerLV MDL Novice

    Sep 28, 2009
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    Wrong Memory Configurations Table, you need put your memory modules as follows:
    Channel 0: DDR2_1, DDR2_2 = 2 x 1gb
    Channel 1: DDR2_3, DDR2_4 = 2 x 512mb
    ;)
     
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  5. alextheg

    alextheg Super Moderator
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    #5 alextheg, Sep 30, 2009
    Last edited: Nov 14, 2009
    (OP)
    Tried that and machine would not boot. In fact ive tried al possible configurations and have the same issue. Bios isnt showing the full 3gb so im assuming that its being hijacked for hardware at the boot stage or its simply not compatible ram. However resmon shows 3gb installed and details where it is being used.
    http://forums.mydigitallife.net/attachment.php?attachmentid=3256&stc=1&d=1254331226
     
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  6. Carel

    Carel MDL Member

    Oct 11, 2009
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    RAM Issue

    You can try entering this command in cmd: BCDEdit /set PAE forceenable
    You can lso press Ctrl+Shift+Esc & open TaskManager, goto performance. It should show your total RAM there. If it shows 3GB there, then 3GB is definitly available. Try enabling PAE in your BIOS (Physical Address Extension). If it still doesn't work, well, get a hammer.
     
  7. alextheg

    alextheg Super Moderator
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    Not a viable solution for me in afraid as bios only sees 2gb of installed ram. Seems its a chipset limitation. To occupy 4 banks i must use 4 single sided ram modules. I foot think many people have had success with the PAE command anyway. Thanks anyway.
     
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