A3V3 for the baseT PHY. Also an analog rail filtered off of 3V3 (last 3.3V power domain on the board, I promise! at least other than the ones for the SFP+ which don't have test points)
This one is sagging a bit due to resistive losses in the filter network, down to 3.284V. Still well within tolerance for the PHY.
Ripple is 6.941 mV p-p, 0.934 mV RMS. I'm happy with that.