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Thread: Asrock X79 Extreme 9 MB Ram problem!




  1. #1
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    Exclamation Asrock X79 Extreme 9 MB Ram problem!

    Hi guys,

    I have built myself a system at the start of this year and everything was fine, but I realised that I have bought the wrong set of RAMs for my MB, even though it works fine now but the MB doesn't utilise all the memory so even though I have 32 GB of RAM in it will only use 8-16 max. I went on the RAM support list and took a look and it kinda confused me even more.

    I just want to ask a simple question, if I want to populate all 8 dimms or just 4 dimms making a total of 32GB which model of RAM should I get (RAMs that can be OC with no problem)?

    I have posted all the system spec of my desktop below:

    Intel i7 3960X Extreme CPU OC @ 4.6ghz
    Club3D Radeon HD 7970 RoyalQueen GPU @ 1000mhz
    GSkill Trident 4x8GB PC3-19200 DDR3 2400MHz
    AsRock X79 Extreme 9 Motherboard
    H100i Water cooling system

    Here is the link of the RAMs I bought:
    http://www.amazon.co.uk/gp/product/B007V9PZFI/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1

    Any suggestions?

    Thanks :)

  2. #2
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    Default Re: Asrock X79 Extreme 9 MB Ram problem!

    Couple of questions if I may.

    The 4x8GB doesn't run at XMP set to 2400?

    When you say "the MB doesn't utilise all the memory" are you saying it only see's 8 or sometimes 16, OR, your system as a whole only utilizes between 8-16GB when loaded up?
    #1 - Please, when seeking help, enter the make and model of ALL parts that your system is comprised of in your Signature, or at least the model #'s in your System Specs, then "Save' it.
    ____If you are overclocking, underclocking, or undervolting any parts, informing us of this and their values would prove beneficial in helping you.

    #2 - G.Skill RAM Configurator for your boardSamsung Memory for your boardLatest AMD Chipset Drivers/WindowsLatest AMD Graphics Drivers/WindowsLatest Intel Drivers

    #3 - Please use the eXtreme Outer Vision Power Supply Calculator found HERE to determine if it might be your PSU at issue.
    ____Consider your PSU to be the foundation from which all else is built upon. Anything built upon a weak foundation is poorly built.

  3. #3
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    Default Re: Asrock X79 Extreme 9 MB Ram problem!

    Quote Originally Posted by - wardog - View Post
    Couple of questions if I may.

    The 4x8GB doesn't run at XMP set to 2400?

    When you say "the MB doesn't utilise all the memory" are you saying it only see's 8 or sometimes 16, OR, your system as a whole only utilizes between 8-16GB when loaded up?

    The system does see all 32GB of ram, but when apps take up to around 8gb it stops going up. So I know it is actually only using 8gb of ram

    so therefore I am now looking to buy new rams.

    ps. xmp works fine on 2400mhz

  4. #4
    profJim's Avatar
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    Default Re: Asrock X79 Extreme 9 MB Ram problem!

    Load up your system so that it's actively using 6GB or more ram.
    Next, run LinX for 1 loop using 8GB of ram and see how much memory is in use during the test.
    Monitor your cpu core temperatures during the test.

    You can use windows Resource Manager, memory tab and look at the bar graph at the bottom of the window.

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  5. #5
    parsec's Avatar
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    Default Re: Asrock X79 Extreme 9 MB Ram problem!

    Quote Originally Posted by cbc14k View Post
    The system does see all 32GB of ram, but when apps take up to around 8gb it stops going up. So I know it is actually only using 8gb of ram

    so therefore I am now looking to buy new rams.

    ps. xmp works fine on 2400mhz
    If the BIOS and Windows sees all your memory, then it is compatible with your board and CPU. It doesn't make sense that the system stops using memory at 8GB, what are you using to monitor memory usage? I've never heard of this issue before, memory that is "missing" from the PC means it is not recognized by Windows or the BIOS.

    As Prof Jim posted, see what Windows Resource Monitor shows for your memory usage.

    Most CPU benchmark programs like Intel Burn Test, Prime95, or AIDA64 allow you to test your memory and select the amount you want to test. If you can select more than 8GB in any of those tests, then you can use more than 8GB.

    If your PC stopped using memory above 8GB of usage, it would start using the Windows Pagefile as a substitute, and the performance of the program using the Pagefile would be much slower. Can you notice a difference in performance?

  6. #6
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    Default Re: Asrock X79 Extreme 9 MB Ram problem!

    Quote Originally Posted by parsec View Post
    If the BIOS and Windows sees all your memory, then it is compatible with your board and CPU. It doesn't make sense that the system stops using memory at 8GB, what are you using to monitor memory usage? I've never heard of this issue before, memory that is "missing" from the PC means it is not recognized by Windows or the BIOS.

    As Prof Jim posted, see what Windows Resource Monitor shows for your memory usage.

    Most CPU benchmark programs like Intel Burn Test, Prime95, or AIDA64 allow you to test your memory and select the amount you want to test. If you can select more than 8GB in any of those tests, then you can use more than 8GB.

    If your PC stopped using memory above 8GB of usage, it would start using the Windows Pagefile as a substitute, and the performance of the program using the Pagefile would be much slower. Can you notice a difference in performance?

    But everytime I run Prime95 after around 5mins my PC just goes off. Only small FFTs work fine but all others will make my PC go off, I dont know what is the matter. I tried to do a custom burn with all 32GB which does use up all 32 GB but again, after 5 mins my PC will suddenly go off.

    Any idea how I find out what is the matter?

  7. #7
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    Default Re: Asrock X79 Extreme 9 MB Ram problem!

    Are the 4 sticks that you have from a 4x8GB kit? What's the model number of the mem you have?

    Is the BIOS setting the sticks up properly; ie timings AND voltage ? Or are you OC'ing the memory?
    #1 - Please, when seeking help, enter the make and model of ALL parts that your system is comprised of in your Signature, or at least the model #'s in your System Specs, then "Save' it.
    ____If you are overclocking, underclocking, or undervolting any parts, informing us of this and their values would prove beneficial in helping you.

    #2 - G.Skill RAM Configurator for your boardSamsung Memory for your boardLatest AMD Chipset Drivers/WindowsLatest AMD Graphics Drivers/WindowsLatest Intel Drivers

    #3 - Please use the eXtreme Outer Vision Power Supply Calculator found HERE to determine if it might be your PSU at issue.
    ____Consider your PSU to be the foundation from which all else is built upon. Anything built upon a weak foundation is poorly built.

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