Trixie B850 chipset sensor support - NCT6799 module

[jeremy ardley <jeremy.ardley@gmail.com>]

The default Trixie install does not include the NCT6799 module required 
to read sensors on the newer B850 series chipset motherboards.

For users with B850 chipset motherboards (ASUS TUF Gaming B850-E WIFI 
tested), the standard sensors-detect may not find hardware monitoring 
support.

Solution:

sudomodprobe nct6775

sensors

This loads the NCT6799 Super I/O monitoring chip and provides:

 * Fan speed monitoring (fan1-fan7)
 * PWM control channels (pwm1-pwm7)
 * Multiple temperature sensors (SYSTIN, CPUTIN, AUXTIN0-5)
 * Voltage monitoring

Make permanent:

echo "nct6775" | sudo tee -a /etc/modules

I tested this with AMD Ryzen 7 8700G, ASUS TUF Gaming B850-E WIFI, 
Debian Trixie, kernel 6.12.41

Note: CPU fans must be connected to motherboard headers (not case 
controller boards) to appear in readings.