The following config is for a GA-990FXA-UD3, the Gigabyte GA-970A-D3 Rev 1.x to the GA-990FXA-UD7 Rev 1.x share a very similar sensor layout.
Output:it8720-isa-0228
Adapter: ISA adapter
Vcore: +1.41 V (min = +0.78 V, max = +1.50 V)
Vdram: +1.49 V (min = +1.42 V, max = +1.57 V)
+3.3V: +3.36 V (min = +3.14 V, max = +3.47 V)
+5V: +5.00 V (min = +4.76 V, max = +5.24 V)
+12V: +12.24 V (min = +11.41 V, max = +12.62 V)
5VSB: +5.03 V (min = +4.76 V, max = +5.24 V)
Vbat: +3.10 V
CPU_FAN: 1028 RPM (min = 10 RPM)
SYS_FAN1: 979 RPM (min = 10 RPM)
SYS_FAN2: 1198 RPM (min = 10 RPM)
PWR_FAN: 1247 RPM (min = 10 RPM)
VRM Temp: +39.0°C (low = +0.0°C, high = +65.0°C) sensor = thermistor
SB Temp: +26.0°C (low = +0.0°C, high = +50.0°C) sensor = thermal diode
CPU Temp: +25.0°C (low = +0.0°C, high = +65.0°C) sensor = Intel PECI
# libsensors3 configuration file for the GA-990FXA-UD3 Rev. 1.1
# This is strongly based on the Gigabyte GA-790XTA-UD4 sensors3.conf
chip "it8720-isa-*"
### Voltages
# in5 is mysterious. It is -12V in other uses of this chip, but unstable here
# -12V is in the ATX spec for ISA, which is use sparingly in modern hardware
label in0 "Vcore"
label in1 "Vdram" # "DDR3" in BIOS
label in2 "+3.3V"
label in3 "+5V" # Not in BIOS
label in4 "+12V"
ignore in5 # -12V unused
ignore in6
label in7 "5VSB" # Not in BIOS
label in8 "Vbat" # Not in BIOS
ignore cpu0_vid
ignore intrusion0 # No panel switch
### Fan labels as found on the motherboard
label fan1 "CPU_FAN" # controlled by temp3
label fan2 "SYS_FAN1" # controlled by temp1
label fan3 "SYS_FAN2"
label fan4 "PWR_FAN" # unregulated max speed
# Vcore, Vdram, +3.3V and Vbat are connected directly, so no compute
# line is needed for these. +5V and 5VSB are internal so we use the
# standard scaling factor. Scaling for +12V is apparently not standard,
# factor 3.963 is guessed from BIOS and EasyTune values (3.943 was
# another candidate.)
compute in3 @ * (6.8/10+1), @ / (6.8/10+1)
compute in4 @ * 3.963, @ / 3.963
compute in7 @ * (6.8/10+1), @ / (6.8/10+1)
# The BIOS won't set any limit for voltages.
set in0_min 0.825 * 0.95
set in0_max 1.425 * 1.05
set in1_min 1.5 * 0.95
set in1_max 1.5 * 1.05
set in2_min 3.3 * 0.95
set in2_max 3.3 * 1.05
set in3_min 5 * 0.95
set in3_max 5 * 1.05
set in4_min 12 * 0.95
set in4_max 12 * 1.05
set in7_min 5 * 0.95
set in7_max 5 * 1.05
### Temperatures
label temp1 "VRM Temp" # This is unconfirmed, Possibly near NB, but the NB
set temp1_min 0 # operates at significantly higher temps than temp1
set temp1_max 65 # Default max fan speed reference point
label temp2 "SB Temp" # This sensor reacts to nearby heat from the GPU
set temp2_min 0
set temp2_max 50 # Tropical ambient temperature plus a bit
label temp3 "CPU Temp" # k10temp truncated to whole number +12C. k10temp
set temp3_min 0 # reports thermal margin, and reports -10C when idle
set temp3_max 65 # Bulldozer Published limit +3C
compute in4 @ * 3.963, @ / 3.963
compute in7 @ * (6.8/10+1), @ / (6.8/10+1)
# The BIOS won't set any limit for voltages.
set in0_min 0.825 * 0.95
set in0_max 1.425 * 1.05
set in1_min 1.5 * 0.95
set in1_max 1.5 * 1.05
set in2_min 3.3 * 0.95
set in2_max 3.3 * 1.05
set in3_min 5 * 0.95
set in3_max 5 * 1.05
set in4_min 12 * 0.95
set in4_max 12 * 1.05
set in7_min 5 * 0.95
set in7_max 5 * 1.05
### Temperatures
label temp1 "VRM Temp" # This is unconfirmed, Possibly near NB, but the NB
set temp1_min 0 # operates at significantly higher temps than temp1
set temp1_max 65 # Default max fan speed reference point
label temp2 "SB Temp" # This sensor reacts to nearby heat from the GPU
set temp2_min 0
set temp2_max 50 # Tropical ambient temperature plus a bit
label temp3 "CPU Temp" # k10temp truncated to whole number +12C. k10temp
set temp3_min 0 # reports thermal margin, and reports -10C when idle
set temp3_max 65 # Bulldozer Published limit +3C
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