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  1. #1
    ROG Junior Member Array Rkujo PC Specs
    Rkujo PC Specs
    MotherboardPrime z370-a
    Processori5 8600k
    Memory (part number)F4-3200C16D-16GTZ
    Graphics Card #1R9 270x
    MonitorAsus vn247h
    Storage #1850 Evo 500gb
    Storage #2Wd Blue 1Tb ezex
    CPU CoolerH100i v2
    CaseFractal Design Define S
    Power SupplyEvga Supernova G2 750w
    Keyboard Logitech G105
    Mouse Razer Naga Molten 2014
    Headset Hyperx Cloud 2
    Mouse Pad Corsair MM300
    OS Windows 10 Pro

    Join Date
    Apr 2017
    Reputation
    10
    Posts
    4

    Lightbulb 8600k 5ghz+ Help

    Hi all im new in the forum i recently got to finish my build and decided to overclock it. My specs;

    i5-8600k
    Prime z370-a
    F4-3200C16D-16GTZ gskill trident-z 16gb 3200 cl16
    h100i v2
    fractal design define s

    So far i was running 4.8@1.27v in bios without avx offset and 1.26v in hwinfo with llc level 6
    i was running 1.26v in bios but i had a freeze while playing gw2 when alt+tabbing but i was using night light in windows and i had crashes like that in my old laptop too so i dont think it was the voltage issue i had run prime95 avx load for 10mins and aida stress test for 20 mins or so with the 1.26v

    Right now im looking to improve the oc and need recommendations on the settings i should set in the bios for high overclocks.

    I think there is a bclk problem in my system it doesnt stay at a stable number it keeps jumping around 100mhz (99.93-100.05) and jumps are happening fast it doesnt stay on a value for more than half a second. My older systems had static bclk so i am wondering if it is a problem or not.

    I'm also possibly looking to overclock the ram as well after the cpu is done.

    If you need any more info or pictures let me know and i will try to post them asap.

    Thanks
    Last edited by Rkujo; 04-10-2018 at 05:35 AM.

  2. #2
    ROG Guru: Yellow Belt Array Carlyle2020 PC Specs
    Carlyle2020 PC Specs
    Laptop (Model)amd4000 for sure next time
    MotherboardAsus Maximus XI APEX w/o vrm heatsink
    Processor8086K/@5.1/1.320/LLC5 avx 1
    Memory (part number)Corsair LPX 4000 CL19@16.17.28/300/2T/ 1.42 volt
    Graphics Card #1GTX 1060
    Graphics Card #2watercooled 2080ti itw
    Sound CardXonar STXII mods:3xLME 49720NA
    MonitorLG 38WK95C
    Storage #12TB 970evo plus nvme
    Storage #21TB 960evo nvme +2x 1tb evo 860 hw-sata-raid
    CPU CoolerNoctua NH-D15
    CaseSilverstone FT2 + 20 pound of var. sounddampening
    Power SupplySeasonic TX-850 RMAed the prime tita1000w
    Keyboard Cherry KC 1000 / OOO CORSAIR K63 + lapboard
    Mouse MX Master 3
    Headset Sennheiser PC360 + Philips X2HR
    Headset/Speakers klipsch 4.1 pc speaker /cooling modified
    OS Win 10 64bit
    Network Routeryeah right...
    Accessory #1 Silverstone EBA01 headphone stand / black
    Accessory #2 radio Keyfob to turn on and off from Garage
    Accessory #3 4 bay fantec

    Join Date
    Mar 2018
    Reputation
    17
    Posts
    127

    hi there,

    kindly google: "spread spectrum".
    It explains the fluctuation in your BLK.
    It is a functions ccontrolled via Bios.
    It helps with interference.

    There are Yay and NAy sayers, so kindly do your own research.

    Rgds
    Carlyle

    (my Bios pics are online if'ya wanna look)

  3. #3
    ROG Junior Member Array Rkujo PC Specs
    Rkujo PC Specs
    MotherboardPrime z370-a
    Processori5 8600k
    Memory (part number)F4-3200C16D-16GTZ
    Graphics Card #1R9 270x
    MonitorAsus vn247h
    Storage #1850 Evo 500gb
    Storage #2Wd Blue 1Tb ezex
    CPU CoolerH100i v2
    CaseFractal Design Define S
    Power SupplyEvga Supernova G2 750w
    Keyboard Logitech G105
    Mouse Razer Naga Molten 2014
    Headset Hyperx Cloud 2
    Mouse Pad Corsair MM300
    OS Windows 10 Pro

    Join Date
    Apr 2017
    Reputation
    10
    Posts
    4

    Thanks should it stop fluctuating if I disable it?
    And anything for the oc?

  4. #4
    ROG Junior Member Array Rkujo PC Specs
    Rkujo PC Specs
    MotherboardPrime z370-a
    Processori5 8600k
    Memory (part number)F4-3200C16D-16GTZ
    Graphics Card #1R9 270x
    MonitorAsus vn247h
    Storage #1850 Evo 500gb
    Storage #2Wd Blue 1Tb ezex
    CPU CoolerH100i v2
    CaseFractal Design Define S
    Power SupplyEvga Supernova G2 750w
    Keyboard Logitech G105
    Mouse Razer Naga Molten 2014
    Headset Hyperx Cloud 2
    Mouse Pad Corsair MM300
    OS Windows 10 Pro

    Join Date
    Apr 2017
    Reputation
    10
    Posts
    4

    Cpuz shows 1.248v while cinebench is running @4.8ghz 1.27v in bios

  5. #5
    ROG Junior Member Array Rkujo PC Specs
    Rkujo PC Specs
    MotherboardPrime z370-a
    Processori5 8600k
    Memory (part number)F4-3200C16D-16GTZ
    Graphics Card #1R9 270x
    MonitorAsus vn247h
    Storage #1850 Evo 500gb
    Storage #2Wd Blue 1Tb ezex
    CPU CoolerH100i v2
    CaseFractal Design Define S
    Power SupplyEvga Supernova G2 750w
    Keyboard Logitech G105
    Mouse Razer Naga Molten 2014
    Headset Hyperx Cloud 2
    Mouse Pad Corsair MM300
    OS Windows 10 Pro

    Join Date
    Apr 2017
    Reputation
    10
    Posts
    4

    It also drops to 1.248v in prime95 small fft @4.8ghz avx offs. 0 with max Temps around 81 with ambient temp quite high

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