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Thread: timing




  1. #1
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    Default AMD 3000+ OC best RAM timing

    hi
    I have:
    AMD 64 3000+ venice
    K8N Neo2 (nvidia nforce3 ultra)
    2x512 kingston
    ati 9600 xt

    I would like to know waht the best timing for my RAM to oc the cpu.
    At 230x9.0 the sistem reboot with vcore at 1.55 , RAM at 1.75v and HTx3
    (in the core cell change the memory timing from T2 to T1 and the rest I've leav it "auto" cause I don't know what is the best, I donīt know if this settings are only to thise board)

    if you need more information I can tell

    Any help would be good...
    Last edited by Orioz; 08-16-2005 at 05:02 AM.

  2. #2
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    Default Re: timing

    You need to tell us more about the RAM. We can't tell you what timings to use if we don't know what timings the RAM is rated for.

  3. #3
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    Default Re: timing

    ok what I found in the manual is that CAS Latency is 3 and I also find thise:
    512MB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM

  4. #4
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    Default Re: timing

    Then set the timings to 3-3-3-10, or in other words, set tRAS to 10 and the other three values to 3. Leave Command Rate at 1T as you already have.

    For your overclocking, if you can, bring the RAM voltage up to 2.8v or 2.9v, but don't expect the RAM frequency to go much above 200MHz. You'll have to adjust your dividers so that it stays around 200Mhz while the reference clock of the Athlon 64 (the
    "FSB," as it might be referred to in the BIOS) goes up.

  5. #5
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    Default Re: timing

    ok thanks
    but I donīt need to block RAM frequency at 200MHz...right!?

  6. #6
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    Default Re: timing

    It stil crash on 230mhzx9.0...thanks anyway
    there are anyway to unlock the multiplier !?!?
    and would be better to increase the fsb or the multiplie!?!?

  7. #7
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    Default Re: timing

    The multiplier, but the only direction you can take it is down, so you have no choice as to which to raise. Only the Athlon 64 FX and (I think) X2 will have completely unlocked dividers.

    There should be a way to set a memory divider, which puts the memory and CPU "FSB" at a certain ratio. For example, to keep them the same, you would use 1:1. To put the "FSB" to 250MHz, while leaving the RAM at 200MHz, you would put the CPU:RAM divider to 5:4. You'll also need to uncrease the voltage, though not by much for the 270MHz OC you're having problems with.

  8. #8
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    Default Re: timing

    hummm I think I understand now
    I should put the RAM if possible with the same frequency as FSB
    but I don't understand 1 thing should be my RAM frequency 400mhz!??!
    Last edited by Orioz; 08-18-2005 at 03:35 AM.

  9. #9
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    Default Re: timing

    Set your ram to start at 166MHz in bios. Then you may be able to overclock it a little bit. Other than that, you will need much better ram to overclock 1:1. It is ddr400 (400MHz) because it is double data rate (DDR) so that is 2X200MHz.
    GIgabyte GA-990FXA-UD3
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  10. #10
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    Default Re: timing

    Quote Originally Posted by Orioz
    hummm I think I understand now
    I should put the RAM if possible with the same frequency as FSB
    If possible, yes, but that won't be possible. You need to have it at a different speed because it will limit your overclock, otherwise. You should try to keep your RAM around 200MHz (which is 400MHz DDR) as you increase the "FSB." The RAM speed and processor "FSB" are directly tied to each other, so you'll need to change them together in a way that keeps the RAM speed around 200MHz.

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