@tlatch52, looks like you are doing well with your OCs, nice hashrate and low power consumption. SoC values are a bit of an extra power saving once everything else is stable and working fine and it looks like you have values that are pretty low already.
I usually get everything else stable then start dropping SoC Freq by 10 each time until it crashes or the hashrate starts to fall off a cliff, then just raise it up slightly (+5) to keep it stable, (a lower frequency should require less power), test for a bit (24hrs) then start dropping SoC VDDMax by 10 also in the same way. VDDMax is voltage so lowering it will reduce power consumption more directly but find out what SoC frequency it is happy with first, this will kinda dictate the voltage it will need. Drop VDDMax until it crashes or is unstable, then raise slightly (+5). All cards have a slightly different stability point (silicon lottery) so don’t expect all your cards to be the same, they won’t be
‘amd-info’ and ’ cat /var/log/amd-oc.log’ show a bit of extra SoC parameter info.
To find the default SoC values, remove your existing SoC values, let HiveOS apply the changes and then run ‘amd-info’ and it will show you the default values. You can then easily revert back to your original config.
SoC = System-on-chip. In a simplistic sense it is the ‘Operations Manger’ for the GPU, it makes sure everything runs smoothly on the board (and alot more). Mining is a pretty simple operation for a GPU so the SoC does not have much to do, so we can throttle it back to consume less power. Obviously there is a tipping point where it does not have enough frequency and voltage to do its job properly and then things go tits.