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  1. #1
    ROG Member Array evo4ever86 PC Specs
    evo4ever86 PC Specs
    MotherboardASUS Maximus X Hero Z370 (1801 BIOS)
    ProcessorIntel Core i7 8700K Coffee Lake @ 5100MHz
    Memory (part number)16GB Kingston Hyper X Fury @ 3333mhz C16
    Graphics Card #1MSI GeForce RTX 2080 Gaming X Trio @ 130/1000
    Sound CardIntegrated Realtek HD 7.1
    MonitorLG 42' Inch 4K UHD @ Game Mode
    Storage #1Samsung SSD 960 EVO M.2 NVMe 250GB
    Storage #22x 256GB Samsung SSD 850 EVO @ RAID0
    CPU CoolerCorsair H115i Extreme AIO
    CaseNZXT Noctis 450 MIDI
    Power SupplyCougar GX V3 1050W Plus Gold Modular
    Keyboard Corsair Gaming K63 RGB with Corsair K63 Lapboard
    Mouse Corsair M65 RGB
    Headset Corsair HS60 7.1 Gaming Headset
    Mouse Pad N/A
    Headset/Speakers Corsair HS60 7.1 Gaming Headset / No Speakers
    OS Windows 10 Pro
    Network RouterISP Provided DOCSIS 3.1 Cable Router
    Accessory #1 256GB SANDISK SDCZ880 Extreme Pro USB 3.1 SSD Flash Drive
    Accessory #2 Bluetooth USB Dongle

    Join Date
    Jan 2019
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    New BIOS's are making overclocking unstable! Cannot get 5.2GHz with BIOS 1801 !

    Hello all.

    I've been updating my BIOS since I bought my mobo, we're currently at 1801. Over the past few BIOS updates my overclocked settings have become unstable. I can't remember which BIOS it was but I could overclock my 8700K to 5.2GHz. Then a new BIOS came out and knocked my overclock down to 5.1GHz, and the current one will only stabilise at 5050MHz using BCLK @ 101. Can I flash back to the first release version ?

    Has anyone else noticed this?

    Help appreciated guys.
    Last edited by evo4ever86; 02-08-2019 at 11:25 PM.

  2. #2
    New ROGer Array
    Join Date
    Aug 2018
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    Hey,

    I am in exactly the same boat! Updated the BIOS to 1801 from 1401 and now my 5.2GHz OC is no longer stable even with slightly more voltage.

    Today I have been trying to downgrade the BIOS back to 1401 but I keep getting the error "selected file is not a proper bios" when in EZFlash which I assume is because ASUS doesn't want us going back to old BIOS version. If anyone knows how to downgrade that would be great?!

    Disapointing that an overclock can be stable for 6+ months on one BIOS and then is completely screwed with an update.

    Sam

  3. #3
    ROG Guru: Gold Belt Array Menthol PC Specs
    Menthol PC Specs
    MotherboardM 10 Apex / XI gene
    Processor8700K / 9900K
    Memory (part number)2x8 Gskill Trident Z 4266/2x2x8 Gskill Trident Z 4500
    Graphics Card #1RTX 2080ti / GTX 1060
    Sound CardSoundBlaster Ae5 / Onboard
    MonitorBENQ 32" 4K
    Storage #1Intel 900p 480GB/Samsung 960 Pro 1TB
    Storage #2Intel 750 1.2TB/Plextor 1 TB 2X 950 Pro
    CPU CoolerCorsair H150i AIO / H1110i
    CaseCorsair 740 ? Lian Li Air
    Power SupplyCorsair AX 1200i / AX 1200i
    Keyboard Corsair
    Mouse ASUS Strix
    Headset HyperX Cloud Alpha
    Mouse Pad ASUS
    Headset/Speakers Logitech Z906
    OS 10 X64 Pro
    Network RouterVerizon Fios
    Accessory #1 Intel Wifi BT pcie card
    Accessory #2 Red Bull
    Accessory #3 English Breakfast Tea
    Menthol's Avatar
    Join Date
    Jan 2012
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    On Z 370 - 390 boards you can downgrade your bios using Ez Flash in bios or at least I have no issue doing so
    Flash back method was needed a couple generations ago and is preferred by many people as the safest way to flash your bios

    Sammies,
    Try re downloading bios again and unzip, maybe try a different USB drive, it should work

  4. #4
    ROG Guru: Yellow Belt Array Guitarmageddon888 PC Specs
    Guitarmageddon888 PC Specs
    MotherboardMaximus x code bios1704
    Memory (part number)8700k 5.1/4.9avx
    Graphics Card #1MSI 2080 gaming trio
    MonitorHP Omen 27"
    Storage #1Samsung 970 m.2
    Storage #2Samsung 860 evo
    CPU CoolerH150i
    CaseLian li pc011
    Power SupplyEvga supernova g3 850w
    Keyboard Corsair k70
    OS Windows 10

    Join Date
    Nov 2018
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    12
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    192

    Good to know. I have been camped out on 1704 debating whether or not to go to the latest. I'll probably just keep this.

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