asus-trx50-sage-wifi-sensors.conf

# lm-sensors configuration for the Asus Pro WS TRX50-SAGE WIFI motherboard
#
# Recommended drivers: asus-ec-sensors, nct6775, spd5118

chip "nct6798-isa-0290"
    # Voltage labels are from HWiNFO, except Core0/1 and VDD_11_S3 are from the BIOS
    label in0 "CPU Core0"
    compute in0 @*1.11, @/1.11
    label in1 "+5V"
    compute in1 @*5, @/5
    label in2 "AVSB"
    label in3 "3VCC"
    label in4 "+12V"
    compute in4 @*12, @/12
    label in5 "CPU VDDIO"
    compute in5 @*1.11, @/1.11
    label in6 "CPU Core1"
    compute in6 @*1.11, @/1.11
    label in7 "3VSB"
    label in8 "VBAT"
    label in9 "VTT"
    label in10 "CHIPSET1 1.0V"
    label in11 "VDD_11_S3 / MC"
    compute in11 @*1.11, @/1.11
    label in12 "VIN2"
    label in13 "CPU VSOC"
    compute in13 @*1.11, @/1.11
    label in14 "CHIPSET1 1.8V"
    compute in14 @*1.11, @/1.11

    label temp1 "Motherboard"
    label temp2 "CPU Socket"
    ignore temp3 # Produces seemingly garbage values
    ignore temp4 # Seems unused: Sits at 23°C regardless of conditions
    ignore temp5 # Seems unused: Sits at 26°C regardless of conditions
    ignore temp6 # Seems unused: Sits at -9°C regardless of conditions
    ignore temp7 # Seems unused: Sits at 26°C regardless of conditions
    # temp8~12 are "virtual" sensors configured by the BIOS depending on the
    # temperature sources used for PWM fan control. Typically they are just
    # copied over from the EC sensors.
    # Using the EC sensors (asusec) directly will be more reliable than these
    ignore temp8
    ignore temp9
    ignore temp10
    ignore temp11
    ignore temp12
    label temp13 "CPU Tctl"

    label fan1 "CHA_FAN1"
    label fan2 "CPU_FAN"
    label fan3 "CHA_FAN2"
    label fan4 "CHA_FAN3"
    label fan5 "CHA_FAN4"
    label fan6 "W_PUMP+"

    # Needs https://github.com/hramrach/lm-sensors/pull/12 to not have wrong values
    label pwm1 "CHA_FAN1"
    label pwm2 "CPU_FAN"
    label pwm3 "CHA_FAN2"
    label pwm4 "CHA_FAN3"
    label pwm5 "CHA_FAN4"
    label pwm6 "W_PUMP+"

# spd5118 does not autodetect these sensors, so they have to be added manually
# each boot with:
#    # echo spd5118 0x50 > /sys/bus/i2c/devices/i2c-0/new_device
#    # echo spd5118 0x52 > /sys/bus/i2c/devices/i2c-0/new_device
#    # echo spd5118 0x50 > /sys/bus/i2c/devices/i2c-1/new_device
#    # echo spd5118 0x52 > /sys/bus/i2c/devices/i2c-1/new_device
# Also needs https://github.com/hramrach/lm-sensors/pull/11 to parse correctly
chip "spd5118-i2c-0-50" # Path: /sys/devices/platform/AMDI0010:01/i2c-0
    label temp1 "DIMM_E1"
chip "spd5118-i2c-0-52"
    label temp1 "DIMM_G1"
chip "spd5118-i2c-1-50" # Path: /sys/devices/platform/AMDI0010:02/i2c-1
    label temp1 "DIMM_A1"
chip "spd5118-i2c-1-52"
    label temp1 "DIMM_C1"

Thank you and yes my fans were configured correctly. I'm not sure what the sensor is showing but I have in fact removed the factory thermal pad and repasted the chipset myself. This resulted in a ±20 degrees Celsius drop in temperatures. From high 80s, low 90s to 70ish.

That being said the AUXTIN5 still shows high temps despite chipset temperature in BIOS being cooler.