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Last active January 31, 2026 15:52
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Gigabyte Aorus - Linux fan control.md

PWM fan control in Linux with a Gigabyte Aorus motherboard

  • install lm-sensors with your package manager

sensors

If it won't show any fan/speed, continue

sensor-detect

Say YES to at least "Super I/O sensors"

Expected output:

Trying family `ITE'...                                      Yes
Found unknown chip with ID 0x8688

If similar, continue

git clone https://github.com/frankcrawford/it87

cd it87
sudo make clean
sudo make install
sudo modprobe it87 ignore_resource_conflict=1 force_id=0x8622

sensors

The fans should show up now, if yes, continue to make them available at boot:

echo options it87 ignore_resource_conflict=1 force_id=0x8622 > /etc/modprobe.d/it87.conf
echo it87 >> /etc/modules
@julienwetzel
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julienwetzel commented Jan 17, 2026

B550 Aorus Elite AX V2 - fans show up in sensors and CoolerControl, but I have no control over them. ignore_resource_conflict does nothing, I had to add acpi_enforce_resources=lax to GRUB.

Hi! I had the exact same issue with a similar Gigabyte setup. The reason ignore_resource_conflict doesn't work is that the kernel driver sees the resource as busy, and acpi_enforce_resources=lax is indeed the first step, but often not enough to gain write access to the PWM registers on the IT8686E.

Try the following steps to unlock full control:

1. Update your GRUB definitively
Ensure your /etc/default/grub contains both parameters:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_enforce_resources=lax"
Then run sudo update-grub.

2. Force the driver configuration
The it87 driver needs to be told explicitly to ignore the virtual ACPI device. Create a configuration file:
sudo nano /etc/modprobe.d/it87.conf
Add this line:
options it87 ignore_resource_conflict=1

3. The BIOS "Full Speed" Trick (Crucial)
On B550 Aorus boards, if the BIOS 'Smart Fan 5' is set to 'Auto' or 'Normal', the hardware controller often overrides software PWM signals.

  • Go into your BIOS.
  • Set the fans you want to control to Full Speed.
  • This hands over the PWM duty cycle control to the OS. Once you boot back into Linux, your Fan Control app should be able to down-regulate them from 100% to your desired curve.

@envido32
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envido32 commented Jan 31, 2026

Thanks for much for this! :)

Running Debian 12, Gigabyte x570 Aorus Pro Wifi

git clone https://github.com/frankcrawford/it87 cd it87 sudo make clean sudo make sudo make install

---- This one didn't seem to do anything sudo modprobe it87 ignore_resource_conflict=1 force_id=0x8622

But after I rebooted, I now have all sesnsors.

it8688-isa-0a40 Adapter: ISA adapter in0: 1.42 V (min = +0.00 V, max = +3.06 V) in1: 2.02 V (min = +0.00 V, max = +3.06 V) in2: 2.02 V (min = +0.00 V, max = +3.06 V) in3: 1.99 V (min = +0.00 V, max = +3.06 V) in4: 1.07 V (min = +0.00 V, max = +3.06 V) in5: 900.00 mV (min = +0.00 V, max = +3.06 V) in6: 1.36 V (min = +0.00 V, max = +3.06 V) 3VSB: 3.26 V (min = +0.00 V, max = +6.12 V) Vbat: 3.22 V fan1: 620 RPM (min = 0 RPM) fan2: 427 RPM (min = 0 RPM) fan3: 0 RPM (min = 0 RPM) fan4: 0 RPM (min = 0 RPM) fan5: 553 RPM (min = 0 RPM) temp1: +32.0°C (low = +127.0°C, high = +127.0°C) sensor = thermistor temp2: -55.0°C (low = +127.0°C, high = +127.0°C) sensor = thermistor temp3: +55.0°C (low = +127.0°C, high = +127.0°C) sensor = AMD AMDSI temp4: +45.0°C (low = +127.0°C, high = +127.0°C) sensor = thermistor temp5: +41.0°C (low = +0.0°C, high = -125.0°C) sensor = thermistor temp6: +49.0°C (low = -16.0°C, high = +90.0°C) sensor = thermistor

I can also confirm that this fix worked on my Aorus B450 Pro Wifi running Fedora43
It detected a it8622-isa-0a40
Thank you so much!

@apalazzi
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apalazzi commented Jan 31, 2026

On Gigabyte Aorus Elite X570 works with just modprobe it87, no parameters needed. Thanks.

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