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  1. #1
    ROG Guru: Orange Belt Array bass junkie xl PC Specs
    bass junkie xl PC Specs
    MotherboardAsus Rog XI Code Z-390 -Bios -1502
    Processori9-9900-Ks @ 5.3/4.9 Cache @ 1.32v
    Memory (part number)32 GB ( 8 GB x 4 ) Team Group X @ 4133 mhz cl-17-17-17-34 @ 1.45v / vccio = 1.25v/ vcssa = 1.25 v
    Graphics Card #1RTX 3080 EVGA XC3 Ultra
    Sound CardMotherboard Realtec , Driver 87.46
    MonitorAsus PG279Q , 27 inch 165 HZ , 1440p G-Sync
    Storage #1Samsung 970 evo 1 TB x 2 m.2 nvme ssd
    Storage #2Samsung 970 evo + 500 GB (OS ) m.2 nvme ssd
    CPU CoolerDeep Cool Gamermaxx 360mm v2 / Kraken G12 s36 360mm
    CaseThermaltake View 71 full Glass
    Power SupplyEvga 1000w Platnuim
    Keyboard Corsair K95 Platnuim RGB
    Mouse Corsair Night Sword RGB
    Headset Razer Kraken 7.1 chroma
    Mouse Pad Asus Sheeth Large
    Headset/Speakers Logitech Z-5500 THX 5.1
    OS Windows 10-1909 x64 Pro
    bass junkie xl's Avatar
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    9900 ks + Asus X - hero Z-370 WIfi Results

    Asus X hero Z-370 wifi owner + 9900 ks just installed on latest bios 2103 and everything seems fine

    5 ghz all core
    load line level 6
    cache @ 4.7 ghz
    vcore = 1.28 v manual
    ram @ 16 gb 4000 mhz cl-17
    all power limits / ia dc load lines maxed and ia ac dc load line = 0.01

    hard ware info 64 open and core temo logging

    seems my 9900 ks on z 370 x hero needs

    1.28 v load line= 6 manual vcore to pass prime 95 versionm 26.6 1344k test and 1.26 v for asus real bench

    this is with 4000 mhz ram tuned tight and cache @ 4.7 ghz

    adia 64 memory benchmnark said 59,987 k read , 60,4123 write 53,231 copy latency = 40.1 ns !

    my 8700k did 5 ghz @ 1.28 v and 5.,1 ghz @ 1.355v no avx offset in prime 95 26.6 small ffts .

    switching out 8700k for 9900 ks droped my memory latency from 42 ns down to 40.2 ns thats 2 points ! same exact settings

    so long story short my 9900 ks and 8700k both need 1.28v for 5 ghz lol

    should i keep it or go for better 1.28 v for 5 ghz all core ?

    i heard z-370 needs 0.030 - 0.050 v more then z-390 to be stable is this true ?

  2. #2
    ROG Guru: Yellow Belt Array Carlyle2020 PC Specs
    Carlyle2020 PC Specs
    MotherboardAsus Maximus XI APEX
    Processorgaming9900ks@5.2/avx 0/ adaptive vcore / 1.35+0.020 offs/LLC5/ac ll 0.01/TVB off/power saving on
    Memory (part number)Gskill 4400 CL16 /65k r /65k w / 60k c
    Graphics Card #13080 ftw ultra /pads on backplate
    Sound CardXonar STXII mods:3xLME 49720NA
    MonitorLG 38GL950G / -HDR / +madVR
    Storage #12TB 970evo plus nvme
    Storage #21TB 960evo nvme +2x 1tb evo 860 hw-sata-raid
    CPU Coolerarctic freezer II 280
    CaseUnique Silverstone FT2 dampened up the wazoo V2.0
    Power SupplySeasonic TX-850
    Keyboard Cherry KC 1000 on top of a cherry MX1 for ergonomics :)
    Mouse MX Master 3
    Headset Sennheiser PC360 + Philips X2HR
    Headset/Speakers A250 / cause LG was stingy
    OS Win 10 64bit
    Network Routeryeah right...
    Accessory #1 Silverstone EBA01 headphone stand / black
    Accessory #2 radio Keyfob to turn on and off
    Accessory #3 4 bay fantec /10tb red/+scrap

    Join Date
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    Since not all z 370 and 390 VRMs are built equal one cannot make that comparison in general.

    It also would be worth a try to lower the LLC by one and rather up the vcore until it is stable again.

    There is a chance that it could run cooler under load.

    How come you do not mention temps ?

  3. #3
    ROG Member Array
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    I also got a 9900ks for my maximus x hero. From the looks of it (and 2h+ testing) I found out some limits of my cpu. for 5GHz non-avx stability around 1,25V is required and for AVX loads like LinX approximately 1,30V is required. These are software readings of course, I have no tools to measure the real voltage from the back of the motherboard socket.

    My settings are:
    • adaptive voltage of 1,325v
    • LLC level 5
    • IA AC and DC loadlines are set to 0,01
    • power limits manually overridden (no MCE)

    Depending on the load on the cpu (avx, non-avx, light loads or heavier loads) this tends to give me a vcore of 1,280-1,312v when read with software like hwinfo or cpu-z under load.

    My ram is g.skill ripjaws 5 2x8GB kit 3600MHz cl16-16-16 and I set the VCCSA to 1,15V and VCCIO to 1,10V like I did with my 8700k.

  4. #4
    ROG Guru: White Belt Array kens30 PC Specs
    kens30 PC Specs
    Motherboard???
    ProcessorCore i7 8700K
    Memory (part number)G.Skill Trident Z RGB F4-3200C14D-32GTZR
    Graphics Card #1? RTX3080
    Sound CardSound Blaster Z
    MonitorSamsung 32inch 1080p
    Storage #1Samsung 970 pro 500gb
    Storage #2Samsung 970 evo plus 500gb 850 pro 128gb x2 + WD 8tb
    CPU CoolerCorsair H110i gt
    CaseCorsair Graphite 780T
    Power SupplyCorsair AX860 Platinum
    Keyboard Corsair K70 RGB LUX
    Mouse Logitech G pro
    OS Windows 10 pro 1909
    Accessory #1 Microsoft Xbox One Controller
    kens30's Avatar
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    What cpu temps are you guys getting with the 9900ks?
    I am planning on getting one as well for my maximus x code which has a vrm thermal sensor.

  5. #5
    ROG Member Array
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    Oh yeah I completely forgot to mention the temps. I'm using noctua NH-D15 on a R6 case. Under the LinX AVX testing I was seeing core temps from 80C to 88C, average being pretty close to 84C-85C. This was on the stock 5GHz using ~1,300v and ~200W package power (software reading on both).

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