FlowDE

Did you tune with Powertop? Your Intel Networkcard won't support any energy savings and if you tune it with Powertop the System gets unresponsive. https://bugzilla.kernel.org/show_bug.cgi?id=218499

if you increase the minimum PWM value they will start to spin again.

Alway WD because even if i had any problems it was a blast to get a new HDD from WD.

Is someone else also affected of not reaching anything higher than C2/C3 with Realtek Network-Cards since the last 2-5 Unraid updates?

You Intel Card could be the culprit I reported the issue on https://bugzilla.kernel.org/show_bug.cgi?id=218499

Yes its "normal" and we should raise a Support-Ticket at Intel. A Colleague told me that Intel has its own development for linux driver.

Start from scratch. Zero VMs or Docker, No Storage and disconnect all Network-Cables just a Monitor, Mouse and Keyboard and check the C-State. Then look if you can disable something like bluetooth and wifi or led stuff.

Check your Network-Card

Yeah i got the same problem and probably the system uses more Watt than needed with that card even if its not used.

Yes its an I225V Vendor ID: GenuineIntel BIOS Vendor ID: Intel(R) Corporation Model name: 12th Gen Intel(R) Core(TM) i3-12100 BIOS Model name: 12th Gen Intel(R) Core(TM) i3-12100 To Be Filled By O.E.M. CPU @ 4.0GHz BIOS CPU family: 206 CPU family: 6 Model: 151 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 Stepping: 5 CPU(s) scaling MHz: 15% CPU max MHz: 5500.0000 CPU min MHz: 800.0000 BogoMIPS: 6604.80

My System whit an 12th Gen Intel CPU uses less than 10 Watts while no Storage is attached and my crapy Intel NIC isn't in use. I think even the newer generations can use less Watt, maybe not extreme as some models whit 3 to 5 Watts but that is out of my scope.

Yeah pretty annoying.... i am also affected that my System can't reach any higher C-States just because of the Network-Chip from Intel

WD Red SN700 - have two of them as an cache Raid

Try to Update your Unraid to 6.12.8 "Problems due to Realtek network cards Upgraded kernel fixes the deadlock issue with jumbo frames and the in-tree Realtek 8125 driver. However, we still recommend following the advice above regarding jumbo frames. If you continue to have network stability issues and Tools > System Devices shows that you have a Realtek ethernet controller, grab the part number shown and search Community Apps to see if there is a Realtek vendor-supplied driver plugin for that device. For more information" And if i am not wrong in the "Appstore" there are some Realtek-Drivers You don't need to you can check if the CPU enters higher C-States with Powertop after unplugging those cards (care about your Data bevor doing that)