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Thread: The Official Opteron 939 Overclocking Thread

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  1. #11
    Love and Peace!
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    Quote Originally Posted by afireinside
    BTW use orange slots for BH5
    trying. this board is somewhat new to me


    also, the defintion of read preamble..

    The Read Preamble time is a function of the asynchronous round trip loop latency, the clock
    frequency, DIMM type and process type. These settings are initial recommendations only. They can
    be adjusted to compensate for signal integrity issues, bus length mismatches, or any other empirical
    data that proves that other settings are more reliable.
    check page 172:
    http://www.amd.com/us-en/assets/cont...docs/26094.PDF

    there's a nice chart. 133mhz = 7.0ns, 166mhz = 6.0ns, 200mhz = 5.0ns. seems to be 1000ns / mhz = read preamble, thus as you scale up the mhz a lower value SHOULD be optimal, but for some reason, other people find the opposite


    edit2: the orange slot will have to wait, i've gotta test out the 8x cpu multi first
    Last edited by ozzimark; 09-28-2005 at 06:11 PM.
    Got a fan over those memory sticks? No? Well get to it before you kill them

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