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RAM at 667 MHz instead of 1600

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toprod Posted messages 46 Registration date   Status Member Last intervention   -  
leph Posted messages 691 Status Member -
Hello,

I just updated my desktop computer.
I bought a 4GB memory stick at 1600MHz.

However, my PC detects it as if it were at 667MHz.

Do you have any idea what the problem might be? If there is one?
Thank you in advance for your help, I'm a bit lost :)

Configuration: 
Windows 7
Intel Pentium G860 clocked at 3 GHz
ASRock B75 Pro3 motherboard
Corsair XMS3 4GB DDR3

9 answers

  1.
    leph Posted messages 691 Status Member 26
     
    You have the answer, unless my knowledge is outdated, they can only be reached in "dual channel," which means you need at least 2 sticks, QED

    --

    The quote
    Umm, I don't know...
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    1. toprod Posted messages 46 Registration date   Status Member Last intervention   3
       
      Thank you very much for your help. My issue is now resolved.
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  2. leph Posted messages 691 Status Member 26
     
    How many connected bars do you have?

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    The quote
    Well, uh, I don't know...
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  4. leph Posted messages 691 Status Member 26
     
    OK, are you sure that this frequency is supported by your motherboard, otherwise...

    Who can do more can do less, but not the other way around, and in this case, it’s the minimum possible that prevails

    --

    The quote
    Well, uhh, I don't know...
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  6. toprod Posted messages 46 Registration date   Status Member Last intervention   3
     
    On the motherboard manual, it is indicated that with a Sandy Bridge CPU (which is the case with my CPU), the maximum is 1333 MHz.

    667 MHz is half (minus 1) of 1333 MHz

    Is the 1333 MHz achievable only in dual channel?
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  7. leph Posted messages 691 Status Member 26
     
    The dual channel means you need two sticks and you only have one

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    The quote
    Well, uhh, I don't know...
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  8. leph Posted messages 691 Status Member 26
     
    What is RESOLVED is always good to explain the why of how

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    The quote
    Well, uh, I don't know...
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  9. vieu bison boiteu Posted messages 44334 Registration date   Status Contributor Last intervention   Ambassador 3 592
     
    Hello

    weird explanation in this post

    an Intel Pentium G860 has a FSB of 1333 MHz to operate at 3 GHz
    and it won't require more than that
    even if you insert a RAM stick rated at 1600 MHz, it will run at 1333 MHz

    if you only have one stick, thus single channel
    the BIOS will multiply the base clock frequency of the stick by 4
    333 MHz x 4

    if you have a dual channel kit, the base clock frequencies are added
    and the BIOS will multiply by 2
    ( 333 + 333 ) x 2

    333 MHz; 667 MHz are rounded values
    there are decimals and tenths

    see you+
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  10. leph Posted messages 691 Status Member 26
     
    Thank you for the technical clarification, Old Bison from Old but not Lame...
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