Raspberry Pi 5, Volumio, Samsung 980 nvme SSD power save

Hello all!

I’m using the above mentioned setup with latest stable Volumio build. Everything is working fine, except a little thing. The Samsung 980 500gb nvme SSD wont go to power save when it is not in use. I tried putting the following line (bold italic type) in volumioconfig.txt:

DO NOT EDIT THIS FILE

APPLY CUSTOM PARAMETERS TO userconfig.txt

[cm4]
dtoverlay=dwc2,dr_mode=host
otg_mode=1
[pi5]
dtoverlay=vc4-kms-v3d-pi5

dtparam=uart0_console # Disabled by default

dtparam=nvme
dtparam=pciex1_gen=2
[all]
arm_64bit=0
dtparam=audio=on
audio_pwm_mode=2
dtparam=i2c_arm=on
disable_splash=1
hdmi_force_hotplug=1
force_eeprom_read=0
nvme_core.default_ps_max_latency_us=0 pcie_aspm=off

Please help me.