Done?
2. Try the driver noted at http://www.hardocp.com/article/2014/11/19/nvidia_geforce_gtx_970_sli_4k_nv_surround_review#.VKhxJns_ZCA
3. "Set your PC's output resolution so it matches a resolution supported by the TV."
This may be tough to do without a display. I take it that nothing shows during the BIOS boot screen. If so, call Samsung and get them to fix that.
Bob

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