I think that's wrong. It would mean 4*6=25W per DIMM.
I also have 48GB DDR5 DIMMs and HwInfo shows 6W max per module.
This is official support, just like 2 dimms are officially supported only at 5200MHz. People have been running them higher.
How are you measuring the power? At the wall? I think you are measuring the memory controller too, not just the dimms.
I think that's wrong. It would mean 4*6=25W per DIMM.
I also have 48GB DDR5 DIMMs and HwInfo shows 6W max per module.