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  1. #1
    New ROGer Array
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    Did brown out just kill my CPU?!

    Just had a quick flash brown out during storm. My otherwise perfect PC of just over a year, running an i9 chip on Asus ROG Maximus XII, seems instantly damaged. Still running with RAM RGB lights and fans, and I hear normal drive sounds during boot, but motherboard is giving me error 7F ("reserved for future use" per manual) which then changes to "Check CPU". Meanwhile, monitor display is blank, no signal. How do I even begin to troubleshoot this, short of swapping out the CPU?? Please help! I've done cold reboots to no avail, same result. Thanks for any suggestions.

  2. #2
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z - 3600MHz 16-16-16-36-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyPCP&C Turbo Cool 1200w
    Keyboard ROG Falchion NX / Strix Flare II
    Mouse ROG Chakram X/Chakram Core/Spatha X
    Headset ROG Delta S Animate
    Mouse Pad Steelseries Prism XL + ROG Scabbard II
    OS Windows 11 Home
    Accessory #1 Asus optical drive
    Accessory #2 Koolance ERM-2K3U
    Nate152's Avatar
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    Feb 2013
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    372
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    Hi Brian72

    Try shutting down your pc and turning off the psu switch for a few seconds, turn it back on and see if things return to normal.

    Normally, psu's have protection against this.

    Could try reflashing the bios if that doesn't help.

  3. #3
    New ROGer Array
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    Jun 2020
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    It worked!! Thank you! I hadn't tried unplugging the PSU and switching it off physically, just shut down / restart. Now I need to get my blood pressure back down. Thanks again!

  4. #4
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Maximus IX Code
    Processori7-7700k 5.2GHz Delidded
    Memory (part number)16GB G.Skill Trident Z - 3600MHz 16-16-16-36-2T
    Graphics Card #1Titan Xp - EKFC waterblock
    Sound CardROG SupremeFX 2015
    MonitorHP ZR30w
    Storage #1Toshiba VX500 256GB
    CPU CoolerSwiftech Apogee GTZ
    CaseThermaltake Armor+ VH6000
    Power SupplyPCP&C Turbo Cool 1200w
    Keyboard ROG Falchion NX / Strix Flare II
    Mouse ROG Chakram X/Chakram Core/Spatha X
    Headset ROG Delta S Animate
    Mouse Pad Steelseries Prism XL + ROG Scabbard II
    OS Windows 11 Home
    Accessory #1 Asus optical drive
    Accessory #2 Koolance ERM-2K3U
    Nate152's Avatar
    Join Date
    Feb 2013
    Reputation
    372
    Posts
    17,210

    You're welcome,

    Good to see it was an easy fix.

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