Processors

[Stefanqn]

Hello,

which C-states does a Zen3 (Ryzen 5 5600) support?

I'm currently setting up a file server and I'm surprised about the high power consumption of 28 W.

[BillyFeltrop]

Zen3 processors, including the Ryzen 5 5600, support a range of C-states, which are power-saving states that allow the processor to reduce its power consumption when it is not actively processing data. The exact C-states supported by a processor can vary depending on the specific model and the motherboard it is installed on.

Usually, Zen3 processors support C-states up to C6, which is a deep sleep state that can significantly reduce power consumption. However, the specific power consumption of your file server will depend on a variety of factors, including the specific components you are using, the workload being processed, and the power management settings configured on your system.

If you are concerned about the high power consumption of your file server, there are several steps you can take to reduce it. For example, you can adjust the power management settings in your system's BIOS to optimize power consumption, or you can replace power-hungry components with more efficient ones. It is also worth considering the workload being processed by your file server, as some workloads may be inherently more power-hungry than others.

[Stefanqn]

Hi Billly,

thank you for your response. I'm kind of suprised, that my Desktop Ryzen 5500 reports 3 ACPI C-states, yet my 5600 only reports 2.

As far as I know, the C-states are explicitly entered by the OS, for Linux this means acpi_idle driver.

Do you know if CC6 must also be requested by the OS?

[tinted]

Ok, I have recently bought Ryzen 5 5500GT. I am also trying to enable C4 and deeper states but I am unable to.

My motherboard is MSI B450M-A PRO MAX II and I have enabled "Global C-state control" and played with other bios settings like "Modern Standby" but I am unable to enable deeper C-states in my Ubuntu OS.

But it is using C3 for 99% of the time while idling and I have seen it take 3.5W CPU package power (Thanks to being APU).

I would also really love if I can make modern standby work

Edit: It seems having 3 states is correct, they are just labeled wrong according to random reddit user, lol.
Now I need to worry about the Modern standby feature