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  1. #1
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    Question Rampage IV Black Edition + 4930k: 1.6v vcore spike on crash restart.

    Hi everyone,

    I was recently having a go at pushing my 4930k a bit faster on some new info i had read (on this forum i think).

    I've been using the Bios and ROG Connect to fiddle with voltages and have been monitoring voltage fluctuations with the rog connect's diagram function.

    Yesterday, while testing with prime 95 small ffts, the motherboard shut itself off (possibly to protect vrm's?) and then restarted, sending 1.6v VCore before settling back down to 1.3v-ish.

    Is this dangerous, and will future crashes like this drastically reduce the life of the CPU? or is the nano-second of high voltage irrelevant?

    I can post a picture of the graph if need be, but basically, Vcore jumps from 0 to 1.6v and then straight back to 1.3v within the space of almost exactly 1 second.


    Cheers guys
    John.

  2. #2
    ROG Guru: Green Belt Array UltraNEO* PC Specs
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    Laptop (Model)Dell XPS 13
    MotherboardAsus Rampage V Edition 10
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    1.6v vCore... Well if you read this thread, you'll know the CPU's limitations, at least you'll be more aware.

    http://rog.asus.com/forum/showthread...-on-a-i7-4930K
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  3. #3
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    Hi UltraNEO, i don't think you quite understood what I am saying.
    I didn't set the vcore to 1.6, and none of my settings would allow a vcore that high, heh.

    Please read my post again.

  4. #4
    ROG Guru: Green Belt Array UltraNEO* PC Specs
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    Laptop (Model)Dell XPS 13
    MotherboardAsus Rampage V Edition 10
    ProcessorIntel i7-6850k
    Memory (part number)G.SKILL F4-3600C17Q-32GTZR
    Graphics Card #1Titan X (Pascal)
    Graphics Card #2Titan X (Pascal)
    MonitorASUS ROG Swift PG279Q (x3)
    Storage #1Samsung 970 Pro 1TB NVMe
    Storage #2Samsung 860 Pro 1Tb (x4)
    CPU CoolerCustom Watercooled
    CaseCaseLabs SMA8
    Power SupplyCorsair AX1500i
    Keyboard Keyboard Paradise Custom
    Mouse Logitech G903
    Mouse Pad Logitech G840 XL
    Headset/Speakers ART SLA2 Linear Amp with JBL Control 5
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    I know you didn't set the vCore to 1.60. You did however ask "Is this dangerous, and will future crashes like this drastically reduce the life of the CPU? or is the nano-second of high voltage irrelevant?"

    And the Intel spec suggests it's fine all the way upto 1.60v. I therefore wouldn't have thought, a minor voltage fluctuation of 0.3v will affect the cpu's long term life. It's not like you're running it at 1.6v constantly 24/7 without adequate cooling.
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  5. #5
    ROG Enthusiast Array Jollydet PC Specs
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    Processor7960x @ 4.8
    Memory (part number)32GB G.Skill @4000 C16
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    1.6v is NOT safe for ivy-e under anything except ln-2, UltraNeo intel does not ever suggest 1.6v as safe, VID range is not maximum safe voltage, even if is only seeing 1.6v for a split second, i am surprised more people have not chimed in here. i will be doing some testing on my own board, hopefully this is an ROG connect Bug, are you getting the same readings with the oc panel? time to break out the Fluke multi..

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