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  1. #1
    New ROGer Array
    Join Date
    Jul 2016

    Question Maximus V Gene BIOS settings unreachable


    I have a Asus Maximus V Gene board, at this an Windows 7 system was running without problems until to last weekend. At last weekend I have installed windows updates, since this I have the Secure Boot Violation issue.
    The issue can actually easy resolve by change the Secure Boot settings in the BIOS. But now I have the problem that I can not reach the BIOS settings. If i push <F2> (or <DEL>) the screen change
    to black/blank. I can see the monitor gets an signal, but the screen has no content. The POST/Splash is normal displayed and the boot of an Ubuntu runs without problems,
    only windows is not bootable at the moment, as an result of the Secure Boot issue. If I try to move to BIOS settings the error code display shows the code A2.

    Following things I have tested:

    • Monitor, port and graphiccard configurations:
      • Eizo 2350 / DisplayPort / PCIe graphiccard
      • Eizo 2350 / DisplayPort / Onboard graphiccard
      • Eizo 2350 / DVI / PCIe graphiccard
      • Panasonic-TV / HDMI / Onboard graphiccard
      • Panasonic-TV / HDMI / PCIe graphiccard
      • Eizo 19" / DVI / PCIe graphiccard
      • Dell 20" / DVI / PCIe graphiccard
      • Dell 20" / DVI (HDMI converter) / Onboard graphiccard
      • Dell 23" / DVI / PCIe graphiccard
      • Dell 23" / DVI (HDMI converter) / Onboard graphiccard
      • Dell 24" / DVI / PCIe graphiccard
      • Dell 24" / DVI (HDMI converter) / Onboard graphiccard
    • All drives removed and only one RAM putted to A2 bank
    • CMOS clear -> After that I get an error on POST for CPU fan, which is normally for default BIOS settings. After the error, the POST prints, I must push <F1> to enter the
      BIOS settings for solving the CPU fan error. But after push of <F1> I get the blank/black screen again.

    If I get the blank/black screen, I have waits minutes for changes but nothing is happens.

    The BIOS verion is the current version 1903.

    I have readed from an Monitor resolution handshake issue, but I found no configuration of monitor, card and port with positive result.

    I have no more ideas for solving, can anyone help me? The guarantee has finished at this march

    Best regards

  2. #2
    ROG Guru: Brown Belt Array MeanMachine PC Specs
    MeanMachine PC Specs
    Laptop (Model)I enjoy my wife
    MotherboardCVI HERO + CVII Hero Wifi
    ProcessorRyzen 7 1800X + 2700X
    Memory (part number)CMD16GX4M2B3000C15 + F4-3200C14D-16GTZR
    Graphics Card #1EVGA GTX980 SC for CVFZ
    Graphics Card #2EVGA GTX 1080 hybrid
    Graphics Card #3GTX 770 for phys x
    Sound CardMB
    MonitorHP w2408h
    Storage #1Samsung 970 EVO 500GB M.2
    Storage #2Samsung 840EVO 500GB and 960 M.2 pro
    CPU CoolerCorsair H105, H110 and H115i
    CaseCorsair 750D and 780T
    Power SupplyCorsair AX-1200i and Antec 850 pro platinum
    Keyboard Logitech K800
    Mouse Razer Mamba
    Headset Corsair Vengeance 2100
    OS W7 Ultimate 64bit and W10 pro 64bit
    Network RouterNetcom Wireless NF18ACV
    MeanMachine's Avatar
    Join Date
    Apr 2014

    Hi helpsea and Welcome to ROG.

    Qcode A2, IDE Detect, error code means it's having trouble detecting or reading connected drives.
    Disconnect your drives and reboot the system. This should bring you to your Bios.
    If it does, exit and save with the default settings. Shut the system down and hook up just the drive you have your OS system on.
    Go into Bios and change boot priority to the drive you wish to boot from.

    Hope this helps.
    We owe our existence to the scum of the earth, Cyanobacteria

    My System Specs:

    MB:ASUS ROG Crosshair VII Hero/WiFi GPU:EVGA GTX 1080 sc PSU:Corsair AX-1200i
    AMD R7 2700X Cooler: Corsair Hydro H115i Case: Corsair Carbide 780t

    Memory:G.Skill TridentZ F4-3200C14D-16GTZR SSD:Samsung 500GB 960 EVO M.2

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