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Thread: X99 extreme 4 bios locking on over-clock multi over 40

  1. #1
    Mr_Fish is offline Junior Member
    Join Date
    Feb 2015
    United Kingdom

    Default X99 extreme 4 bios locking on over-clock multi over 40

    Firstly Hi to everyone on the forum,

    Now to business:

    I have an x99 extreme 4 with 16gb crucial ddr4 (4x4) and a 5820k, bios version (1.60)

    graphics = 290x

    When I try to over-clock in the BIOS anything above 4gz it hard locks and i have to reboot. i increase the voltage no problems by as soon as the multi is put above 40 then that's it.

    I can use the A-tune utility in windows to over-clock to 4.4ghz fine (well I can encode for 24 hrs at 4.4ghz) but when I try to apply exactly the same settings (voltage and multi) in the bios game over/ hard lock.

    Has anyone else experience similar? I was wondering why I can apply in windows and over-clock appears fine. (when I increase the CPU speed the FPS does increase during encoding, so I assume its working)

    I have reseated the CPU reapplied thermal paste, removed all but essentials and no difference, 4ghz limit in bios then it freezes/locks.

    Thanks for any replies

  2. #2
    CSAsr84 is offline Junior Member
    Join Date
    Jan 2015

    Default Re: X99 extreme 4 bios locking on over-clock multi over 40

    X99 Extreme4, Corsair GS700, G.Skill @2666, i7-5820k with Coolermaster Hyper 212 Evo.

    No problems with Bios v1.60 and Turbo 4.2 GHZ setting through BIOS though i didn't use it much cause i don't really need it now.

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