Hello,

I upgraded to Unraid 7.0.0. between 17th January 2025 and 18th January 2025.

Today I have seen, that my server now needs about 35% more power. 

There was no change of the hardware and no additional software.

I am using the plugin from dlandon "Tips and Tweaks" to reduce the CPU scaling (conservative).

Can anyone help?

 

nas01-diagnostics-20250220-1928.zip

I think that's too big a change to just be the different kernel, does the CPU usage graph look normal? I would also recommend downgrading back to v6.12 for a couple of days to retest to make sure it's really the upgrade, and also try with and without the plugin.

Hello,

I wrote to the plugin author of "Tips and Tweaks" now, because I think it might not work correct anymore with Unraid 7.0.0.

 

I downgraded to Unraid 6.12.14 and my server needs now again less power. It was about 45 to 50 watts with Unraid 7.0.0.

As I already wrote, I reported this to the author of "Tips and Tweaks" plugin, as I think thats the problem.

@JorgeB

How can I disable amd-pstate-epp driver and enable acpi-cpufreq driver?

Before doing that, I would recommend trying the various pstate driver options, to see if you can find one that has similar power usage and performance, since technically, pstate should be a better option for AMD CPUs.

 

I believe there are 3 options:

amd_pstate=passive
amd_pstate=guided
amd_pstate=active

 

You add one of them to syslinux.cfg, after /bzoot, e.g::

 

 

 

I would first try active, you can then select a governor out of

/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors

and an EPP hint out of

/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences

like this:

$ echo "<gov>" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
$ echo "<epp_profile>" | tee /sys/devices/system/cpu/cpu*/cpufreq/energy_performance_preference

 

 

4 hours ago, JorgeB said:

I would recommend trying the various pstate driver options

Just to add, that if you really want to go back to acpi-cpufreq, this should do it:

 

 

 

@JorgeB

Thank you, that works now to enable again "ACPI CPU Freq".

14 hours ago, cosmas said:

@JorgeB

Thank you, that works now to enable again "ACPI CPU Freq".

What CPU are you using? And not using amd-pstate actually worked out to better power savings to you? :o

He is using a mobile CPU: AMD Ryzen 7 5800H

 

I believe the new driver should be more efficient than the old one, at least users typically want to use the new driver instead of the old one, but possibly, there are some issues with some CPU models.

I too have noticed an increase in consumption around 45w since upgrading to 7.0.1 last week (no other changes).

Intel i5-12600k.

1 minute ago, thesuitgamer said:

I too have noticed an increase in consumption around 45w since upgrading to 7.0.1 last week (no other changes).

That won't be related to this since it won't use the AMD driver, suggest starting a new thread and posting the diagnostics.

System and some background

B550M mobo with 3700x - GTX 1650 - 32GB ECC DDR4 - 7 HDD 2 M.2 (HDDs spun down on all tests)

I have set up CPU to have 60 celsius thermal limit and 45W (ECO mode) power limit it stays otherwise normally on PBO

CPU boosts to around 4.2GHz with 1-2 cores and all cores stays on base 3.6GHz

Findings during testing different modes

Driver with amd_pstate=disable in syslinux.cfg = acpi-cpufreq

Driver without amd_pstate in syslinux.cfg = amd-pstate-epp

WebUI/Settings/Powermode

Changes scaling_governor to powersave or performance.

Sets energy_performance_preference to performance with both available settings.

energy_performance_preference cannot be changed from performance to other states when governor is set to performance

Other comments

with scaling_governor set to powersave you can choose from

default performance balance_performance balance_power power

default is same as performance in my case

additionally pstate driver allows cpu to clock to 550MHz on idle and with acpi-cpufreq lowest i have seen is 2000MHz

energy_performance_preference does not survive boot so you need to set it up after boot manually or by script

Tips and Tweaks plugin does not work with pstate and it sets epp always to performance

Results from testing (1 pass each)

Edited November 10, 2025Nov 10 by twiikker