High sierra on legacy bios z68m board?

Anybody successfully running HS on older ga-z68m-d2h board with legacy bios? Stuck using sierra 10.12.6 Using I5-2500k with gtx 960 since rx 580 won't give me hdmi audio in sierra. Tried whatevergreen.

Anyways what method would work for legacy bios?

submitted by /u/kaizen78
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