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  1. #21
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Quote Originally Posted by Menthol View Post
    Doug, don't feel like the Lone Ranger, I also have a lot of issues with tight memory timings, 4F, 55, 01,03, Raja's preset doesn't boot for me either, but will at 19-19-2T
    working with 3 mem kits, 4266 19-19-19, 4133 RGB 18-18-18, 3600 15-15-15

    The CPUs are variable. I purchased a retail CPU recently and found It isn't as good as my other sample. Same board, same memory. Struggles upwards of 4133, unlike my other CPU. Same board I used to create the profile, too. At these levels, every little thing matters. That's why the profiles are only starting points. You'll have to tune for whatever your setup can do consistently.

  2. #22
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    Pretty much my thoughts as well Raja although I would've expected to see cache tumble also. Still runs strong, just mem capability has dropped considerably. See what happens with another chip in.

  3. #23
    ROG Guru: Blue Belt Array jab383 PC Specs
    jab383 PC Specs
    Motherboard24/7 rig : Maximus VI Extreme
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    Things can get weird with just one CPU. My CPU and 4266 19-19-19 kit will tune to 14-16-16-33-1 at 4133, ie. highest ratio without extending bclk. CR1 works fine. I tried for faster timing at 4000, but couldn't get CR1 to work with any CL.

  4. #24
    ROG Guru: Brown Belt Array meankeys PC Specs
    meankeys PC Specs
    MotherboardRampage VI Apex / Maximus IX APEX / Rampage V EX V10
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    Raja - I have been running your timings preset for some time now. Under 1.55v I was getting long boots and failed starts till I did increase the voltage. a bit.

    thank you

  5. #25
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Quote Originally Posted by meankeys View Post
    Raja - I have been running your timings preset for some time now. Under 1.55v I was getting long boots and failed starts till I did increase the voltage. a bit.

    thank you
    The profile is really just a starting point. Voltages and some of the sub-timings may need setting up on a case-by-case basis.

  6. #26
    ROG Guru: Brown Belt Array meankeys PC Specs
    meankeys PC Specs
    MotherboardRampage VI Apex / Maximus IX APEX / Rampage V EX V10
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    Thanks Raja

    If I wanted to tighten up the timings a bit more... what timings would I want to adjust to squeeze a little more performance out of this kit.

  7. #27
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    You'd have to look at the tertiary timing set and see if you can pull any down by 1 clock. Be warned, it's likely quite close to the limit if you're having to increase voltage just to run the base profile. From a headroom perspective, there may be more leeway in the different rank/DIMM timings than same DIMM/rank.

  8. #28
    ROG Guru: Brown Belt Array meankeys PC Specs
    meankeys PC Specs
    MotherboardRampage VI Apex / Maximus IX APEX / Rampage V EX V10
    Processor7920X / 5960X / 6950X / 7700K
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    Graphics Card #1Zotac 1080 Ti
    Graphics Card #2Zotac 1080 Ti
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    Quote Originally Posted by Raja@ASUS View Post
    You'd have to look at the tertiary timing set and see if you can pull any down by 1 clock. Be warned, it's likely quite close to the limit if you're having to increase voltage just to run the base profile. From a headroom perspective, there may be more leeway in the different rank/DIMM timings than same DIMM/rank.
    Rodger That - Thanks I will play around a bit and see if I can tighten things up a bit.

  9. #29
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    Quote Originally Posted by Raja@ASUS View Post
    Try Maximus Tweak mode 2, SA/IO voltage tuning, and/or the single sided 2x8GB Samsung profile for 4133 (which is tuned for performance). 4266 is actually slower than the tuned 4133 profile and should be easier to achieve for most CPUs.
    Been running your 4133 MHz profile for a while now, bumped the voltage to 1.4650v and set the frequency to 4300 MHz, awesome stuff really. Paired with my i7-7700K @ 5.1 GHz it's performing way better than when it was running at 5.2 GHz w/ the 3100 MHz CL12 setup I had before.

  10. #30
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Nice. Thanks for the feedback.

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