Ram Memory running on low frequency.Why?


  1. Katta92
    Posts : 13
    Se7en 32 bit
       New #1

    Ram Memory running on low frequency.Why?


    Hello all, i made a little update for my computer changing the motherboard, ram and videocard. The motherboard is Asrock G41M-VS3 R2.0 and the RAM is this Corsair Memory.

    It is a ddr3 1333mhz ram memory and my motherboard is supporting 1333mhz ddr3 memory, but when i go in BIOS i see the RAM is running only at 400mhz. WHY it is running on so low frequency? I want at least 1066mhz.

    How can i increase the frequency? and sorry for my medium quality english.
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  3. Britton30
    Posts : 24,479
    Windows 7 Ultimate X64 SP1
       New #2

    Ram Memory running on low frequency.Why?-capture.jpg
    You may have to manually adjust BIOS setting to the above specs. Does your CPU support DDR3 1333 MHz RAM?
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  4. Katta92
    Posts : 13
    Se7en 32 bit
    Thread Starter
       New #3

    Ok, i will take a look in BIOS to make the proper settings.

    This is my CPU Intel Penium D 925. I don't know where to look if it is supporting that frequency.
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  6. Britton30
    Posts : 24,479
    Windows 7 Ultimate X64 SP1
       New #4

    I don't see the memory spec either. Install CPUID - System & hardware benchmark, monitoring, reporting and post a snip of it with the Memory and SPD tabs open.
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  7. Katta92
    Posts : 13
    Se7en 32 bit
    Thread Starter
       New #5

    Here is the screenshot :)

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  8. stormy13
    Posts : 6,879
    Win 7 Ultimate x64
       New #6

    It is currently running at 800 MHz. Don't forget that DDR stands for double data rate, so a setting of 400 in the bios is 800 effective.

    To get it to 1333 you have to go into the bios and manually set it there,

    Ram Memory running on low frequency.Why?-1333.jpg

    Whether you would even notice the difference outside of benchmarks is debatable.
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  10. logicearth
    Posts : 5,642
    Windows 10 Pro (x64)
       New #7

    The speed of the RAM is correct. Single channel 1066MHz will run at +355MHz to 533MHz. You want to reach 1066MHz you'll have to get out of Single Channel.
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  11. Britton30
    Posts : 24,479
    Windows 7 Ultimate X64 SP1
       New #8

    The Double Data Rate effectively doubles the frequency reported by CPU-Z even in single channel. Dual channel allows the Memory controller to address multiple RAM sticks as a single one.

    Adjust your RAM volts, timings, and frequency as listed under the JEDEC 3 column. If you have no setting for tRAS or tRC, it's fine.
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