Created
June 4, 2024 10:34
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Setup Unifi Dream Machine (UDM, UDM-SE, etc.) automatic fan speeds control to lower temps and increase hard drive lifespan.
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#!/bin/bash | |
# Installs and configures fancontrol to automatically run Unifi Dream Machine (UDM) fans harder & lower temperatures. | |
# | |
# Context: Unifi equipment typically runs *very* hot from the factory unless you customize it. | |
# I don't want my hard drives to run as hot as they let them get by default (55ºC+), because it shortens lifespan (ideal temp is ~35-45C). | |
# | |
# Further Reading: | |
# - https://linux.die.net/man/8/fancontrol | |
# - https://community.ui.com/questions/Unifi-Dream-Router-fan-speed/1cb9cf18-e8a0-44b4-8402-ee9bac367bc0 | |
# - https://www.reddit.com/r/Ubiquiti/comments/13imgqj/udm_pro_fan_speed_is_this_normal/ | |
# - https://www.reddit.com/r/Ubiquiti/comments/lw4mjl/fan_speed_trick_on_udmp_not_working_on_190/ | |
# - https://github.com/heXeo/ubnt-fan-speed/issues/3 | |
# - https://ewpratten.com/blog/udm-fan/ | |
# - https://github.com/desbma/hddfancontrol | |
# - https://unix.stackexchange.com/questions/499409/adjust-fan-speed-via-fancontrol-according-to-hard-disk-temperature-hddtemp | |
echo "[i] Here are your sensor readings before this script runs (for before/after comparison):" | |
sensors | |
hddtemp /dev/sda | |
hddtemp /dev/sdb | |
echo | |
echo | |
echo "[+] Installing fancontrol package using apt..." | |
apt-get update -qq | |
apt-get install -y fancontrol | |
echo | |
echo "[+] Setting up /etc/fancontrol config file (edit as-desired after this script completes)..." | |
tee /etc/fancontrol <<EOF | |
INTERVAL=1 | |
DEVPATH=hwmon0=devices/platform/soc/fd880000.i2c-pld/i2c-0/i2c-4/4-002e | |
DEVNAME=hwmon0=adt7475 | |
FCTEMPS=hwmon0/device/pwm2=hwmon0/device/temp1_input hwmon0/device/pwm1=hwmon0/device/temp3_input | |
FCFANS=hwmon0/device/pwm2=hwmon0/device/fan2_input hwmon0/device/pwm1=hwmon0/device/fan1_input | |
MINTEMP=hwmon0/device/pwm2=38 hwmon0/device/pwm1=38 | |
MAXTEMP=hwmon0/device/pwm2=49 hwmon0/device/pwm1=49 | |
MINSTART=hwmon0/device/pwm2=30 hwmon0/device/pwm1=30 | |
MINSTOP=hwmon0/device/pwm2=15 hwmon0/device/pwm1=15 | |
MINPWM=hwmon0/device/pwm2=10 hwmon0/device/pwm1=10 | |
MAXPWM=hwmon0/device/pwm2=255 hwmon0/device/pwm1=255 | |
EOF | |
echo "[*] Restarting fancontrol service to apply changes..." | |
systemctl restart fancontrol | |
sleep 1 | |
echo | |
echo "[√] Complete. Check the sensor readings to make sure fans are spinning faster:" | |
sensors | |
hddtemp /dev/sda | |
hddtemp /dev/sdb | |
# Typical Values on my machine after setting this up: | |
# | |
# root@UDM ~# sensors | |
# | |
# adt7475-i2c-4-2e | |
# Adapter: i2c-0-mux (chan_id 3) | |
# in1: 908.00 mV (min = +0.00 V, max = +2.99 V) | |
# +3.3V: 3.29 V (min = +2.96 V, max = +3.63 V) | |
# fan1: 5288 RPM (min = 0 RPM) | |
# fan2: 2349 RPM (min = 0 RPM) | |
# fan3: 0 RPM (min = 0 RPM) | |
# fan4: 0 RPM (min = 0 RPM) | |
# temp1: +42.5°C (low = -63.0°C, high = +191.0°C) | |
# (crit = +100.0°C, hyst = +96.0°C) | |
# Board Temp: +42.0°C (low = -63.0°C, high = +191.0°C) | |
# (crit = +100.0°C, hyst = +96.0°C) | |
# temp3: +43.8°C (low = -63.0°C, high = +191.0°C) | |
# (crit = +100.0°C, hyst = +96.0°C) | |
# | |
# root@UDM ~# hddtemp /dev/sda | |
# /dev/sda: KINGSTON OM4P0S3128B-A0: 49°C | |
# | |
# root@UDM ~# hddtemp /dev/sdb | |
# /dev/sdb: WDC WD101EMAZ-11G7DA0: 45°C |
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