UNDER-clocking the Raspberry Pi?

jimrh · November 3, 2021, 9:50pm

Ref:

The following article on overclocking the Raspberry Pi.

Though a lot of this is specific to the Pi-4, a lot of it is relevant to recent older versions too, like the Pi-3.

Strangely enough, there was a paragraph on underclocking the pi:

Underclocking.

Like you can overclock the Raspberry Pi, you can also underclock your Pi.

The reason is mainly to reduce power consumption. Not all parts of the chip are affected by the central clock governor, for instance, the USB and Ethernet devices. Clocked at 200 MHz, your RPi consumes about 1.7 Watts.
$ sudo nano /boot/config.txt

# Add your lines at the end.

arm_freq_min = 200

# Ctrl+X, Y, Enter to save the session

# Reboot to run at the new clock frequency

$ sudo reboot

What this should allow is for a lowered idling frequency, saving battery power and lowering heat.

@cyclicalobsessive,
Maybe Carl or Dave would be interested?

What say ye?

cyclicalobsessive · November 3, 2021, 10:18pm

is no longer supported