I am not sure if it is degradation, but my chip was 15h+ Orthos stable @ 4200MHz with 1.344 volts. After just 1 hour of running 3DMark05/06 @ 4500 with 1.43V, I now need 1.352 volts to be stable at 4200MHz. The wierd thing is that now with 1.344V when I run 4200MHz, Orthos fails between 35min-7.5h randomly. All other settings and temperature variables are pretty constant. As long as it does not degrade any further I am content with that small increase in voltage for stability, but I am never going to bench with it above 1.4V.
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