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Thread: AMD NBCLK and DRAM ratios/dividers

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  1. #5
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    Quote Originally Posted by Zeus View Post
    I don't know why you want to know ratios for CPU-NB as you don't change a ratio number in bios but you change the frequency. At least on Asus boards, i don't know what board you've got?

    For my Crosshair V Formula-Z i can set CPU-NB as low as 800MHz to as high as 6200MHz.(this is with default 200MHz Ht ref freq.) In other words from multiplier 4 to multi 31.

    Hope this helps.
    Sorry, I did mean multi for NB but thank you for posting the multi ranges.

    Quote Originally Posted by Oese View Post
    NB multi is available only in integer values. Range depends on board/CPU.

    DRAM is 800, 1066, 1333, 1600, 1866 (2133, 2400) which relates to Multis/Dividers 2x, 2.66x, 3.33x, 4x, 4.66x (5.33x, 6x)
    Exactly the info I was looking for, much appreciated

    Quote Originally Posted by The Stilt View Post
    K15h 10-1Fh (TN/RL)

    200MHz (DDR-400) - 1:2 - Pll 16/4 - Min NCLK 300MHz (900MHz)
    266MHz (DDR-533) - 3:8 - Pll 16/3 - Min NCLK 400MHz (900MHz)
    400MHz (DDR-800) - 1:4 - Pll 16/2 - Min NCLK 500MHz (900MHz)
    533MHz (DDR-1066) - 3:16 - Pll 32/3 - Min NCLK 700MHz (900MHz)
    667MHz (DDR-1333) - 3:20 - Pll 40/3 - Min NCLK 900MHz
    800MHz (DDR-1600) - 1:8 - Pll 32/2 - Min NCLK 1000MHz
    933MHz (DDR-1866) - 3:28 - Pll 56/3 - Min NCLK 1200MHz
    1050MHz (DDR-2100) - 2:21 - Pll 42/2 - Min NCLK 1400MHz
    1066MHz (DDR-2133) - 3:32 - Pll 64/3 - Min NCLK 1400MHz
    1200MHz (DDR-2400) - 1:12 - Pll 48/2 - Min NCLK 1500MHz)

    -----------------

    K15h 0-Fh (ZMB/VSHR)

    200MHz (DDR-400) - 1:1 - Min NCLK 400MHz (800MHz)
    266MHz (DDR-533) - 3:4 - Min NCLK 600MHz (800MHz)
    400MHz (DDR-800) - 1:2 - Min NCLK 800MHz
    533MHz (DDR-1066) - 3:8 - Min NCLK 1200MHz
    667MHz (DDR-1333) - 3:10 - Min NCLK 1400MHz
    800MHz (DDR-1600) - 1:4 - Min NCLK 1600MHz
    933MHz (DDR-1866) - 3:14 - Min NCLK 2000MHz
    1050MHz (DDR-2100) - 4:21 - Min NCLK 2200MHz
    1066MHz (DDR-2133) - 3:16 - Min NCLK 2200MHz
    1200MHz (DDR-2400) - 1:6 - Min NCLK 2400MHz
    As always Stilt,

    I assume "ZMB," "VSHR" and "TN" stand for Zambezi, Vishera and Trinity but what does "RL" stand for?
    Last edited by filmbot; 02-15-2013 at 09:24 AM.
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    filmbot

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