I'm using Linux ubuntu and PolarisBiosEditor to edit GPU ROM, so I use the term underwatt instead of undervolt since it only allows me to tune the power parameters like TDP and Max Power Limit. When I run the miner and read the watt output of each GPU using software read using "watch cat /sys/kernel/debug/dri/0/amdgpu_pm_info", they range around 80Watt to 110 Watt consumption depending on the GPU chip set. But when I read the power consumption via multi-meter, it reads around 1,980 watt.
I underwatt some of the GPUs, some of them I can't for some reason. So either my reading (multimeter or software) is wrong or my setting is. Is there any way that I have reconfiguration on the motherboard side that causing the overdrawn power consumption? Anyone is using Ubuntu or Linux?
regards
you cant undervolt in ubuntu