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  1. #1
    New ROGer Array
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    Feb 2019
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    ROG Maximus XI Extreme Rev 1.02 BIOS: 1105 issues

    Hi,

    Hardware:
    Board: ROG Maximus XI Extreme Rev 1.02 BIOS: 1105
    RAM: 16GB G.Skill Trident Z RGB DDR4-3200 DIMM CL14 Dual Kit (F4-3200C14D-16GTZR)

    3 pictures:
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    I do not know if it's BIOS Bug, or if it's overclocking.

    So if I set the "CPU VCCIO Voltage" and "CPU System Agent Voltage" to a fixed value, then the board shuts down twice, then it starts normally and sets automatically: VCCIO = 1.35000. VCCSA = 1.35000. DRAM Voltage = 1.4000.

    But if now: VCCIO = Auto and VCCSA = Auto is set, everything runs smoothly again!

    The i9 9900k runs Prime95 / Game stable with VCCIO = 1.136V and VCCSA = 1.072V, stable at 3200Mhz. ((Samsung B-Die dual ranked))
    I've tightened the timings to 13T-13T-13T-31T-320T-2T and needed a DRAM voltage of 1,500V to stay stable.

    I think that's just one of the latest BIOS versions.

    Can someone test it?

    Thanks for the answers.

  2. #2
    New ROGer Array
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    Feb 2019
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    One more thing,

    If I increase the PC case airflow, then the board will not turn off. If the fans are running quietly and slowly, the board switches off again.

    All this makes no sense. It can not be a temperature problem, the VRMs are under load at 40 - 50 ° C. But since that happens at the POST should - can be a BIOS bug!

    Sensor data:
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