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4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

  1. #1



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    4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    I have a really weird issue, here are the details.
    Firstly, as stated in the title i do have Vista 64 bit.

    Recently bought 2x2 Gig DDR3 1600
    (corsair TW3X4G1600C9DH) with timings 9-9-9-24. My motherboard is an Asus P5Q3 Deluxe.
    This chipset (Intel P45) has know issues with DDR3 running at higher than 1066, but this has supposedly been rectified with a BIOS update which i have flashed, so not sure if that is relevant as my problem is not speed related.

    Under system properties the ram is shown as 4 Gigs but in task manager it says: Physical Memory, Total: 2046. The usage graph shows about 1.1 used and is just over half-way full.
    Not sure if this is valid but i have a pre-release SP2, not sure if this could cause such a problem.

    CPU-z shows both modules are there, but shows total 4 gigs, however Everest only shows 2 Gigs.
    Screenshot below, hope this is not too big, but theres a lot of info to squeeze in.

    Any help will be most appreciated.



    Last edited by pcbilski; 15 Dec 2008 at 07:54 PM.
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  3. #2



    Expelled
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    Vista Bussiness x64 PL
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    poland

     

    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Thats strange

    Try these things

    1.Try force HAL

    Start>>Search>>msconfig

    http://img201.imageshack.us/img201/4...tecthalja0.jpg

    Check options which I show + restart

    2.If point 1 no help try update drivers for motherboard chipset and BIOS

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  4. #3
    validation's Avatar

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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Quote Originally Posted by pcbilski View Post
    Not sure if this is valid but i have a pre-release SP2, not sure if this could cause such a problem.
    Was it like this before you installed SP2?
    If the BIOS is telling you 4GB is installed and Windows is showing otherwise, I would say it has something to do with Windows.

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  5. #4



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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Quote Originally Posted by Flavius View Post
    1.Try force HAL
    Dont know if this is a problem as well but while i was in there i saw that max mem was ticked and set on 2048, so unticked and enabled memory remapping in the BIOS, and its all good!!!

    thanks for all the help guys!


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  6. #5
    validation's Avatar

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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Thats great but your system specs still says 2GB here :P

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  7. #6



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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Are you overclocking? Does your FSB bus match your CPU properly? What does your computer register at post. Reset the CMOS to do the memory count. I see 4GB on the one area.

    I would start by clearing your CMOS with the jumper and computer unpluged. Reset the CMOS to default.

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  8. #7



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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Problem is fixed!!!
    Thanks for all the suggestions

    Quote Originally Posted by SCSIraidGURU View Post
    Are you overclocking? Does your FSB bus match your CPU properly? What does your computer register at post. Reset the CMOS to do the memory count. I see 4GB on the one area.

    I would start by clearing your CMOS with the jumper and computer unpluged. Reset the CMOS to default.
    Those screenies r old, it does show 4 gigs now in task manager.

    by default it runs at 1066, even my previous ram. All i have set in the BIOS is the ram frequency 1600, and the timings as the ram is rated.
    The cpu is 1333fsb, board is 1600. The asus guy told me i couldnt run the ram at 1600 cuz of the 1333 fsb, guess he was wrong

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  9. #8



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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    You should be running DDR667 RAM with that CPU at 1333 MHz. You want the RAM set to auto frequency or DDR667.

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  10. #9



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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    @ SCSIraidGURU

    I noticed it says u r a vista guru, maybe u can help with the following:
    The svchost process has a thread called"wmiprvse.exe" which is using an abnormal amount of CPU power, and there is hard disk activity as well, games run really jerky unless i suspend the process with process explorer, any idea how to fix this? Anyone?
    Some games wont load if it isnt running, have to resume -> load game -> suspend to play properly.
    Really quite annoying.


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  11. #10



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    Re: 4 Gigs DDR3 Ram showing at 2 Gigs in Vista 64

    Quote Originally Posted by SCSIraidGURU View Post
    You should be running DDR667 RAM with that CPU at 1333 MHz. You want the RAM set to auto frequency or DDR667.
    It is DDR3, and not possible to run at 667, the lowest it comes in is 800 or 1066.
    Auto on this board is 1066, but why run lower when it supports up to 1800?

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