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Thread: Memory Timings




  1. #1
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    Post Memory Timings

    I was wondering if anyone wouldn't mind helping me with memory timings?

    I've got cheap RAM but I wanna get the most out of it, never done any RAM timings before... is that the reason for my 8k 3D Mark 2001 score??
    Athlon XP 1800+ DUT3C 1.53ghz @ 166*11.5=1.91ghz | Chaintech Apogee 7VJL | 2x256mb DDR333 PC-2700 | Powercolor Radeon 9600Pro 128mb EZ 400/400 | Lite-on 52x24x52 | Pioneer 108 DVD-RW 16x Dual Layer Dual Format | Xbox USB Modded Controller

  2. #2
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    Default Re: Memory Timings

    I'd say your system is getting about right for 3DMark 01, but I'm not entirely sure...

    Just read through this two articles (they're fairly short) and you sohuld have an okay idea what to do:

    http://www.ocfaq.com/article.php/overclocking/64
    http://www.ocfaq.com/article.php/overclocking/63

  3. #3
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    Default Re: Memory Timings


    So basically just play around with the timings till you get something fast and stable?
    2.5-2-2-5 seems to be pretty fast, is this optimal for me? CAS 2 just crashes :(
    http://service.futuremark.com/compare?2k1=6679645
    Last edited by Juggalo_Dan; 08-21-2004 at 10:32 PM.
    Athlon XP 1800+ DUT3C 1.53ghz @ 166*11.5=1.91ghz | Chaintech Apogee 7VJL | 2x256mb DDR333 PC-2700 | Powercolor Radeon 9600Pro 128mb EZ 400/400 | Lite-on 52x24x52 | Pioneer 108 DVD-RW 16x Dual Layer Dual Format | Xbox USB Modded Controller

  4. #4
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    Default Re: Memory Timings

    Play around with the last number (tRAS) as the other numbers won't be going any lower. As the article mentions, tRAS should be no lower than CAS + tRCD + 2. In your case, it needs to be at least 2.5 + 2 + 2, ot 6.5. You'll have to round that up, so keep it at 7 or higher. I don't know if any specifc number beyond that will have the best performance, but keep raising it and testing. SANDRA, as used in that article, would be a good tool for this.

  5. #5
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    Default Re: Memory Timings

    It can only be set to 5 or 6 on this board... Timings are a bit strange on this board.
    and 2.5-2-2-5/6 Are both running pretty much the same.
    Athlon XP 1800+ DUT3C 1.53ghz @ 166*11.5=1.91ghz | Chaintech Apogee 7VJL | 2x256mb DDR333 PC-2700 | Powercolor Radeon 9600Pro 128mb EZ 400/400 | Lite-on 52x24x52 | Pioneer 108 DVD-RW 16x Dual Layer Dual Format | Xbox USB Modded Controller

  6. #6
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    Default Re: Memory Timings

    You're sure tRAS can only be set at five or six? That's odd... Leave it at six, I guess.

  7. #7
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    Default Re: Memory Timings

    Oh yeah, I'm sure... but yeah system is much faster now that I set the timing manually. Thanks for your help.
    Athlon XP 1800+ DUT3C 1.53ghz @ 166*11.5=1.91ghz | Chaintech Apogee 7VJL | 2x256mb DDR333 PC-2700 | Powercolor Radeon 9600Pro 128mb EZ 400/400 | Lite-on 52x24x52 | Pioneer 108 DVD-RW 16x Dual Layer Dual Format | Xbox USB Modded Controller

  8. #8
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    Default Re: Memory Timings

    Quote Originally Posted by Yawgm0th
    As the article mentions, tRAS should be no lower than CAS + tRCD + 2. In your case, it needs to be at least 2.5 + 2 + 2, ot 6.5.
    If this were true, 2-2-2-5 wouldn't be possible and alittle guy called BH-5 would be non-existant...
    AMD Athlon XP-Mobile 2500+ @ 2.4Ghz
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    " 120 GB "
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    like muzak? check this out \/
    http://www.rose-hulman.edu/~sharpjm/Concept.html

  9. #9
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    Default Re: Memory Timings

    Who said anything about it being impossible? It's just better to have it there...

  10. #10
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    Default Re: Memory Timings

    I wish i could manually set my ram timings.. stupid motherboard

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