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Thread: Asus ROG Crosshair VIII Impact overclock

  1. #1
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    Asus ROG Crosshair VIII Impact overclock





    Bios : https://bit.ly/2ZpvQO9

    0044 = Air/H2O. Fixes memory divider issue, normal BIOS, have memory fail 3 counts recovery mode.
    0045 = LN2. Fixes memory divider issue, no fail 3 counts recovery mode. Can use retry button forever

    0206 Official BIOS : https://bit.ly/2Znvvvm

    OCPACK

    Turbov and CCX OC Tools : https://bit.ly/2MHzo7X

    MemTweakIt : https://bit.ly/2UhX8An

    Zen Perfboost : https://bit.ly/32cg9qD (After loading GB3 or Cine15 bench then run the boost, just click defaults button after benching to prevent bsod)

    From Safedisk @ HWBOT https://community.hwbot.org/topic/19...comment-537469


    B-die 5K DOCP with 4800C18 @ XMP





    Last edited by Dumo; 08-29-2019 at 11:13 PM.

  2. #2
    Xtreme Owner Charles Wirth's Avatar
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    4:14AM when you took screen shot.

    No sleep for you.

    /cheers
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  3. #3
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    Dumo is a MACHINE Charles!
    IOW, Nothing's Changed!
    Zen2 Has brought AMD back!

  4. #4
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    Quote Originally Posted by Charles Wirth View Post
    4:14AM when you took screen shot.

    No sleep for you.

    /cheers
    Too much fun clockin this board

    Quote Originally Posted by muzz View Post
    Dumo is a MACHINE Charles!
    IOW, Nothing's Changed!



    Crucial 4000C18 E-die @DOCP up to 4400XMP 1.35V





    5K 18-23-23 memtest

    Last edited by Dumo; 08-29-2019 at 09:55 PM.

  5. #5
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    Looks pretty cool board

  6. #6
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    Quote Originally Posted by bullant View Post
    Looks pretty cool board
    Thanks Bullant

    Testing C8I ln2 bios 0045 with B-Die @ 4866 C14 fclk 1900 air


  7. #7
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    B-die 1:1


  8. #8
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    Nice bandwidth dude, but TRRD_S and TRRD_L are wrecking your latency there. Can they not tighten up? With sticks that good 4/4 should be possible, maybe even 3/3? I would expect sub 60ns, my lowest is 63.2ns @ C16 with double sided 16gb sticks.

    4800 C18 bin...crazy sticks . T-force 4500 C18 are tempting me, I've had the browser tab open for about 2 weeks now.

  9. #9
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    Quote Originally Posted by PiLsY View Post
    Nice bandwidth dude, but TRRD_S and TRRD_L are wrecking your latency there. Can they not tighten up? With sticks that good 4/4 should be possible, maybe even 3/3? I would expect sub 60ns, my lowest is 63.2ns @ C16 with double sided 16gb sticks.

    4800 C18 bin...crazy sticks . T-force 4500 C18 are tempting me, I've had the browser tab open for about 2 weeks now.
    Thanks PILsY
    4 is the min. value. Imo 4/6 better with 12-9-9
    60ns with fclk 1900 probly possible with cpu on single stage
    fclk cold bugged @ 1500, max out @ 1400ish on ln2

    Last edited by Dumo; 09-10-2019 at 01:36 PM.

  10. #10
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    No worries, that's looking way closer to what I expected. 12-9-9 is ridiculous, utterly ridiculous

    If you want a superpi boost then B-Die can run TRCDWR at half cas latency. i couldnt get it fully stable, but it ran most benches (16-16-8-16 in my case). That'd be 12-9-6-9-18-1T-27 if you wanted minimum possible off those primaries. Like I said, no stability promises but that kit you have is godlike...

    The only thing putting me off buying a high bin 2x8gb kit is the performance hit from running single sided puts me pretty much back to where I am now with double sided at c16. Ive tweaked up to 56k read, 55.5k copy and 63.2ns stable (no BGS/BGS_Alt options for Gigabyte so im down a few thou in AIDA), but that really is all I can get. Looks like C12 flat timings with average subs on single sided will be around where my C16 flat timings with maxed subs are on double sided.

  11. #11
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    70K with B-die 1:1


  12. #12
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    C8I 0050 BIOS agesa 1.0.0.4

    Fix Incorrect MemClkFreq above DDR-5000.
    Add micron/spectek DDR4-5000 auto tuning rule.
    Add SK Hynix DJR DDR4-5000 memory preset.
    Add memory OC fail count, 0 is disabled will not recovery setting and enter safe mode, max 10-times retry.
    Add BCLK fraction function.

    No cb

    https://www.dropbox.com/s/uq3l4dsy5x...-0050.CAP?dl=0

    https://community.hwbot.org/topic/19...comment-541697


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