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  1. #1
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    Unable to boot of PROPER-WORKING OS-Install-USB Sticks

    Got a Maximus VIII Hero with BIOS 2202

    No matter which OS I write onto my many USB sticks (USB3.0 and 2.0) Linux or Windows

    I'm unable to boot of them. I made them using Rufus and they are proper UEFI Usb sticks.

    They worked before.. back on older BIOSes something must have been changed since then and I just can't figure it out.

    I tried disabling secure boot, which isn't even an option, it just says Enabled and is grayed out-unable to change.

    I disabled CSM, no luck, I reset my CMOS in hope whatever option was enabled prevents boot of USB sticks, no luck either.

    So ye, no idea what to do, anyone experienced this or has any clues?

    I did once get Windows 10 to install of a USB stick on the very same BIOS version, but I can't reproduce the steps that made it work, I think a plain CMOS reset suddendly made it work, now it doesn't anymore....

    PS: The usb sticks work fine on my Laptop and on my NUC. So its DEFINITELY not them.

    Both those pcs (Nuc,laptop) have UEFI and Secure boot enabled, as well as CSM.
    Last edited by DeadSix27; 11-06-2016 at 04:26 PM.

  2. #2
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    I just installed win10 on the ssd and kubuntu on the second HDD. Same BIOS and motherboard. Try with F8 to open the boot menu and select your usb stick.

  3. #3
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    Quote Originally Posted by Firehand View Post
    I just installed win10 on the ssd and kubuntu on the second HDD. Same BIOS and motherboard. Try with F8 to open the boot menu and select your usb stick.
    Already tried.. black screen, changes resolution then goes into BIOS, same as when I select it in the BIOS, no matter if I select UEFI: or non UEFI mode.

    Also, ISOS are fine, tried various linux Distros, from a plain Arch iso to a ubuntu server iso, none boot. I tried every usb port I have, I even tried a Internal USB header with an adapter (not that it would make any difference to using the front I/O ones) I also tried a External HDD just to be sure, doesnt work either.

    I'm clueless.

  4. #4
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    The first thing i did when assembled my pc was to flash the last bios from usb with the button on the backplate. Do it again, download the bios and reflash it. It might help.*

  5. #5
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    Quote Originally Posted by DeadSix27 View Post
    Got a Maximus VIII Hero with BIOS 2202

    No matter which OS I write onto my many USB sticks (USB3.0 and 2.0) Linux or Windows

    I'm unable to boot of them. I made them using Rufus and they are proper UEFI Usb sticks.

    They worked before.. back on older BIOSes something must have been changed since then and I just can't figure it out.

    I tried disabling secure boot, which isn't even an option, it just says Enabled and is grayed out-unable to change.

    I disabled CSM, no luck, I reset my CMOS in hope whatever option was enabled prevents boot of USB sticks, no luck either.

    So ye, no idea what to do, anyone experienced this or has any clues?

    I did once get Windows 10 to install of a USB stick on the very same BIOS version, but I can't reproduce the steps that made it work, I think a plain CMOS reset suddendly made it work, now it doesn't anymore....

    PS: The usb sticks work fine on my Laptop and on my NUC. So its DEFINITELY not them.

    Both those pcs (Nuc,laptop) have UEFI and Secure boot enabled, as well as CSM.
    Clear your CMOS. Then install Windows in UEFI mode.

    Also do you have a screen of the settings you're using in RUFUS?

  6. #6
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    Quote Originally Posted by Chino View Post
    Clear your CMOS. Then install Windows in UEFI mode.

    Also do you have a screen of the settings you're using in RUFUS?

    Default ones, FAT32 on various usb sticks with GPT for UEFI, the right ones.

    Resetting CMOS doesn't help, as i stated in the Original post.

  7. #7

  8. #8
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    Quote Originally Posted by Chino View Post
    Post a screenshot if you can.
    Download rufus and then set the first option below USB stick selection to GPT .
    Thats the settings I use.

    In other words, the usb stick is fine, it works on now 4 different systems, including another ASUS one.

    What I suspect is that it has something to do with SecureBoot. But the BIOS Settings for that are even for me really confusing, I'm unsure as to how to actually fully disable that to see if that makes it work.
    Last edited by DeadSix27; 11-07-2016 at 11:34 PM.

  9. #9
    ROG Guru: Yellow Belt Array hiong PC Specs
    hiong PC Specs
    MotherboardAsus Maximus VIII Extreme
    ProcessorIntel i7-6700K
    Memory (part number)F4-3600C16D-16GTZ
    Graphics Card #1Asus Strix 1080
    Graphics Card #2Asus Strix 1080
    Sound CardAsus Strix Raid DLX
    MonitorAsus PG279Q
    Storage #1Samsung 950 Pro M.2 512GB
    Storage #2Samsung 850 Evo 2TB
    CPU CoolerNoctua NH-D15S
    CaseLian Li PC-V2120X
    Power SupplySuper Flower Leadex Titanium 1600W
    Keyboard Logitech G810
    Mouse Logitech G900
    Headset Beyerdynamic T1
    Headset/Speakers Klipsch Quintet
    OS Windows 10 Professional 64-bit
    Network RouterAsus RT-AC88U

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    probably doesn't amount to anything, have you tried all the USB ports?

  10. #10
    Moderator Array Nate152 PC Specs
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    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z 4025MHz 17-17-17-39-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Graphics Card #2Titan Xp
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba OCZ VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyEVGA Supernova 1600w Titanium
    Keyboard Cyberpower Skorpion K2
    Mouse Razer Basilisk
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    Hi DeadSix27

    Have you disabled csm and set secure boot to "Other Os" ?

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