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REVIEW ROG Crosshair VIII Impact X570 - Review and Guide

Discussion in 'Overclocking & Hardware' started by headin2001, Oct 7, 2019.

  1. OP
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    headin2001

    headin2001 Member

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    They are 100% correct Dasa2

    my early tests prepping for SuperPi 32m, I checked linked clocks, with the obvious 3800/1900 being substantially the fastest.

    Increasing the memory speed to tight 4000C12-12-1T timings, saw the time to complete increase from 7m18s to a whopping 7m36s.

    Having Mem clock and FCLK in 1:1 is the best for performance. I’m yet to retest with 4700 daily timings and increased FCLK just yet, but performance may still be close.
     
    Ubermarshall and Bolter01 like this.
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    headin2001

    headin2001 Member

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    Little while between posts but with Xmas and our yearly HWBot Country Cup commitments, time has been tough.

    I managed a few sessions on the Impact, using one of the latest bios. result links below.

    Things I noticed were:
    Increasing SOC helped with FCLK coldbug. 1.35v I was limited to 1466 fclk, 1.52v got me to 1566, and 1.59-1.61v helped 1600! The board does have a volt limit it seems booting with over 1.6v SOC, so setting 1.55v on boot, changing to 1.6v in Windows then allowed full pot benching.

    There is also a few temp zones where it wasn’t happy booting. -175 to full pot would reboot 90% no problem, between -145 and -175 would code and boot 10% of the time, lower than this was no real issue.

    00 and A9 codes when cold meant turning off power supply for 5 seconds and warming to -180 to boot.

    07 is FCLK CB generally and required warming to around -120


    Results:
    (I will add the others later).
    Some 1st’s, some were 1st’s and recently passed by a fellow Aussie.

    5575 wprime - https://hwbot.org/submission/4318367_karta_wprime___1024m_ryzen_9_3900x_35sec_758ms

    5550 R15 - https://hwbot.org/submission/4288250_karta_cinebench___r15_ryzen_9_3900x_4431_cb

    5550 R11.5 - https://hwbot.org/submission/4288238_karta_cinebench___r11.5_ryzen_9_3900x_48.43_points

    5725 single core, can occasionally see 5750 on one core with a perfect mount
    This one is an AMD SuperPi 32m record - https://hwbot.org/submission/4316105_karta_superpi___32m_ryzen_9_3900x_6min_0sec_115ms

    5500 X265 1080p - https://hwbot.org/submission/4312276_karta_hwbot_x265_benchmark___1080p_ryzen_9_3900x_133.216_fps

    5500 X265 4k - https://hwbot.org/submission/4318378_karta_hwbot_x265_benchmark___4k_ryzen_9_3900x_32.713_fps/
     
  3. OP
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    headin2001

    headin2001 Member

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    Last edited: Jan 5, 2020
  4. cbjaust

    cbjaust Member

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    headin2001 likes this.

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