I hope someone can help me. No matter what i try the c states are not going lower that state 3 in powertop 2.15.
I testes it with ubuntu without gpu in headless, no usb attached and all powersaving options in bios enabled (pcie, cstates, disabled usb, audio, ethernet, wlan, disbled turbo…).
Here is my config:
CPU: Intel i3 13400f
Board: ASUS MB Prime H610I-Plus | AsRock B660M-ITX/ac
RAM: 2x Curcial 8GB (stock non overclocked)
SSD: Lexar NM620 | Samsung 980 pro | Crucial P3
„|“ means that I tried these different parts by swapping them out.