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    New ROGer Array Etheradur PC Specs
    Etheradur PC Specs
    MotherboardROG STRIX Z370-E
    Processori7-8700K
    Memory (part number)CMK32GX4M2B3000C15
    Graphics Card #1EVGA GeForce 1080Ti
    MonitorEizo EV3237-BK
    Storage #1Samsung EVO 850 1TB
    Storage #2WD Blue 5 TB
    CPU Coolerbe quiet! SHADOW ROCK 2
    Casebe quiet! DARK BASE 700
    Power Supplybe quiet! STRAIGHT POWER 10 (700 W)

    Join Date
    Dec 2017
    Reputation
    10
    Posts
    3

    ROG STRIX Z370-E POST fail: green LED lit

    Hi all,

    I just assembled a new PC with a ROG STRIX Z370-E and everything seemed to work fine at a first glance. I had the BIOS updated to 0605, and I had memtest-86 run several passes successfully to test my memory (one of the first things I usually do with new hardware). However, after making changes in the UEFI, the system doesn't boot any longer. In particular I changed the CSM (Compatibility Support Module) from enabled to disabled. After the reset, the system doesn't pass the POST any more. After a reset, first, the red LED (CPU) flashes quickly, then the orange LED (DRAM) for a second, then the white LED (VGA) for a second, then the green LED (BOOT) goes on and stays lit. I see nothing on my display (connected via DP to the Mobo).

    I tried to solve the problem by turning off the computer, unplugging the power cord, removing the battery and short-circuiting the CLRTC jumper for a few minutes. It didn't help. I've read somewhere else that the CLRTC jumper needs to be short-circuited for about 24 h in some rare cases, what I'm currently doing. However, I have doubts that it will resolve the issue.

    I've found in the manual that this Mobo has a CrashFree BIOS flashing feature, but the description isn't really precise. I have several questions about this:
    - Should I rename the BIOS file on the USB drive to something particular? I know that older Asus Mobos required this. The manual of the Z370-E just says to copy the BIOS file to a FAT-formatted USB drive.
    - In which port should I plug the USB drive?
    - In which order should I power on the computer and plug in the drive?

    I'll try to flash the BIOS if the CLRTC method doesn't help. Any other suggestions?

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