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Thread: Asrock x99 Extreme11 unstable

  1. #1
    Matteo Pastorino is offline Junior Member
    Join Date
    Dec 2016

    Default Asrock x99 Extreme11 unstable

    Hi all,

    I'm having a lot of problems with this mainboard. I tryied upgrading the bios from 3.0 to 3.20 but it doesn't work.
    The os is unstable, it freezes and reboots. Now I am on win 10 but I tried win 7 too.

    Somethimes when the system reboots it stucks at boot with a code error ( 94 or 95 ) .

    The system is quiet stable using just three video cards in PCIE 1/2/5.
    If I try to use the PCIE 3 or 4 it turns unstable again. It looks like the PCIE doesn't work correctly.

    Is there a bios update or a bios setting I should change to fix this or I should go for RMA?

    here is my system:

    MB: Asrock x99 Extreme11
    CPU: i7-6850k
    Ram: Corsair CMD32GX4M2C3200C16 2*16GB
    Video: 4x pny gtx 1080 founders edition
    Os: Win 10 ( fully updated )
    Video Drivers: 372.90 whql

  2. #2
    Join Date
    Dec 2016

    Default Re: Asrock x99 Extreme11 unstable

    Dear Matteo,
    This is Michael from ASRock Technical support Team.

    We provide following suggestions for you to try:
    1. Please connect a 4 pin molex power cable to PCIe Power Connectors when more than three graphics cards are installed.
    The location of PCIe Power Connectors(see Page 30):
    2. Load BIOS to default setting to try.
    3. Only install one stick memory on each DIMM slots by turns.
    4. Confirm that four VGA cards are installed (PCIE1) / (PCIE2) / (PCIE4) / (PCIE5)
    5. Update BIOS to P3.20
    Please follow the steps and refer the link to flash BIOS P3.20:
    Link: ASRock - BIOS Upgrade Instruction
    Step1: Please make a bootable USB device in the first step, and the USB format should be FAT32.
    Step2: Please download [Instant Flash] BIOS P3.20 from following link:
    Step3: Unzip the file and save ROM file in root directory of bootable USB device.
    Step4: Enter BIOS > Tool > Press [instant fresh] ( Press [Del] in post screen )
    Step5: During BIOS updating, do not plug off the power.
    Step6: After finishing the process, please enter the main page of BIOS to check BIOS version.

    6. If possible, change another power supply.

    Thank you!

    Have a great day,
    ASRock TSD-Michael
    Last edited by ASRock TSD-Michael; 12-30-2016 at 11:44 AM.

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