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Dell 3421 Random Display

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    Dell 3421 Random Display

    Hello all,

    I have Dell 3421 12204-1 DNE40-CR MB.
    Sometime display comes and works fine. Sometime no display no error code too.

    Changed RAM, LVDS, Screen, DC to DC doesn't help. Voltages seems to be ok.

    Any help is appreciated.

    #2
    Re: Dell 3421 Random Display

    Bios flashed?? When no display gfxcore present??

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