setting:
1350/1860
vcore=750
mvddc=775
vddci-1285
soc=850
just copying the straps from 1550 without edit the tRef to 12000 will give low hashrate
these are gigbytes
https://imgur.com/UitestB
Do you see any memory temperature or power consumption drop of those gigabyte cards when undervolt mvddc=775 & mvddci=1285?1350/1860
vcore=750
mvddc=775
vddci-1285
soc=850
just copying the straps from 1550 without edit the tRef to 12000 will give low hashrate
these are gigbytes
https://imgur.com/UitestB
About this pic:
I wonder why you dont undervolt mvddc of GPU2 & GPU4?
Because I see GPU1 & GPU3 use only 100W & 121W, maybe due to undervolt mvddc?