1.2120V. I don't want to put higher volts through untill I can keep it cool, as temps at these volts rise to mid 70's.
Some of those guys on the Lightning owners are banging
1.35v through there cards on air
Had mine to 1.3v on stock bios and heat is the problem,
tempted to put modded bios back on for the extra fan speed
and go for it.
Also they seem to be power ltd- ie when TDP hit 130%
they throttle right down.