Lm-sensors configuration for ASRock Z390 Taichi motherboards on Linux.
Warning: this configuration is hardware dependent, can work properly only on this motherboard! You have to modify the configuration if you want to use it on different motherboard.
Updates:
- [June 10, 2022]: The configuration file has been forwarded to lm-sensors project.
- [August 28, 2023]: In the queue, waiting for merge
ASRock used two super I/O (SIO) chips on Z390 Taichi motherboards to handle multiple fans, temperature and voltage lines:
- primary SIO is Nuvoton NCT6791D
- secondary SIO is Nuvoton NCT5567D
See more details in the review of tweaktown.com. Note: this is not a typical setup, usually one SIO chip can handle everything.
The sensors-detect command in the lm-sensors package can identify these SIO chips:
Some Super I/O chips contain embedded sensors. We have to write to
standard I/O ports to probe them. This is usually safe.
Do you want to scan for Super I/O sensors? (YES/no):
Probing for Super-I/O at 0x2e/0x2f
Trying family `National Semiconductor/ITE'... No
Trying family `SMSC'... No
Trying family `VIA/Winbond/Nuvoton/Fintek'... Yes
Found `Nuvoton NCT6791D Super IO Sensors' Success!
(address 0x290, driver `nct6775')
Probing for Super-I/O at 0x4e/0x4f
Trying family `National Semiconductor/ITE'... No
Trying family `SMSC'... No
Trying family `VIA/Winbond/Nuvoton/Fintek'... Yes
Found `Nuvoton NCT6793D Super IO Sensors' Success!
(address 0xa10, driver `nct6775')
and the sensors command is able to report their status (if the kernel module nct6775 is loaded):
nct6791-isa-0290
Adapter: ISA adapter
in0: 648.00 mV (min = +0.08 V, max = +0.74 V)
in1: 1.67 V (min = +1.50 V, max = +1.83 V)
in2: 3.47 V (min = +0.00 V, max = +0.00 V) ALARM
in3: 3.47 V (min = +2.98 V, max = +3.63 V)
in4: 1.01 V (min = +0.95 V, max = +1.05 V)
in5: 1.06 V (min = +0.94 V, max = +2.04 V)
in6: 1.06 V (min = +0.95 V, max = +1.50 V)
in7: 3.49 V (min = +0.00 V, max = +0.00 V) ALARM
in8: 3.22 V (min = +0.00 V, max = +0.00 V) ALARM
in9: 1.06 V (min = +0.00 V, max = +0.00 V) ALARM
in10: 232.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in11: 1.22 V (min = +0.85 V, max = +2.00 V)
in12: 1.37 V (min = +1.00 V, max = +2.04 V)
in13: 1.27 V (min = +1.20 V, max = +1.40 V)
in14: 1.27 V (min = +0.95 V, max = +2.04 V)
fan1: 458 RPM (min = 0 RPM)
fan2: 527 RPM (min = 200 RPM)
fan3: 0 RPM (min = 0 RPM)
fan4: 700 RPM (min = 0 RPM)
fan5: 489 RPM (min = 0 RPM)
SYSTIN: +34.0°C (high = +60.0°C, hyst = +35.0°C) sensor = thermistor
CPUTIN: -63.0°C (high = +36.0°C, hyst = +35.0°C) sensor = thermistor
AUXTIN0: +23.0°C sensor = thermistor
AUXTIN1: +99.0°C sensor = thermistor
AUXTIN2: +15.0°C sensor = thermistor
AUXTIN3: +12.0°C sensor = thermistor
PECI Agent 0: +31.0°C (high = +36.0°C, hyst = +35.0°C)
(crit = +115.0°C)
PCH_CHIP_CPU_MAX_TEMP: +0.0°C
PCH_CHIP_TEMP: +0.0°C
PCH_CPU_TEMP: +0.0°C
intrusion0: ALARM
intrusion1: ALARM
beep_enable: enabled
...
nct6793-isa-0a10
Adapter: ISA adapter
in0: 192.00 mV (min = +0.00 V, max = +1.74 V)
in1: 944.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in2: 3.47 V (min = +0.00 V, max = +0.00 V) ALARM
in3: 3.31 V (min = +0.00 V, max = +0.00 V) ALARM
in4: 256.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in5: 136.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in6: 840.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in7: 3.46 V (min = +0.00 V, max = +0.00 V) ALARM
in8: 3.20 V (min = +0.00 V, max = +0.00 V) ALARM
in9: 0.00 V (min = +0.00 V, max = +0.00 V)
in10: 128.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in11: 136.00 mV (min = +0.00 V, max = +0.00 V) ALARM
in12: 944.00 mV (min = +0.94 V, max = +2.04 V)
in13: 1.04 V (min = +0.86 V, max = +2.02 V)
in14: 176.00 mV (min = +0.00 V, max = +0.00 V) ALARM
fan1: 523 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
fan3: 0 RPM (min = 0 RPM)
fan4: 0 RPM (min = 0 RPM)
fan5: 0 RPM (min = 0 RPM)
SYSTIN: +114.0°C (high = +0.0°C, hyst = +0.0°C) sensor = thermistor
CPUTIN: +32.0°C (high = +90.0°C, hyst = +75.0°C) sensor = thermistor
AUXTIN0: +35.0°C (high = +0.0°C, hyst = +0.0°C) ALARM sensor = thermistor
AUXTIN1: +107.0°C sensor = thermistor
AUXTIN2: +107.0°C sensor = thermistor
AUXTIN3: +107.0°C sensor = thermistor
PCH_CHIP_CPU_MAX_TEMP: +0.0°C
PCH_CHIP_TEMP: +0.0°C
PCH_CPU_TEMP: +0.0°C
PCH_MCH_TEMP: +0.0°C
intrusion0: OK
intrusion1: ALARM
beep_enable: enabled
NOTE: lm-sensors recognized the secondary NCT5567D SIO chip as NCT6793, but it seems to work properly.
UPDATE: I contacted the author of kernel module nct6775 and received the following answer on this issue:
"It is quite common that Nuvoton uses more than one designation for a single chip core.
Usually that means that the pinout is different. A look into the datasheets confirms
that the chip IDs are the same for both chips, and that indeed the chip pinouts
are different. Unless something does not work there is no reason to be concerned."
This is the hardest part since motherboard and SIO chip vendors are not always providing documentation about their implementation details.
I found this project, where Aaron Bockelie shared a good hint on how to identify lm-sensor entities in case of ASRock motherboards. He suggested to use Nuvoton NCT677xF Data Sheet and the configuration file of ASRock A-Tuning utility (check this file: C:\Program Files (x86)\ASRock Utility\A-Tuning\Conf\Z390TAICHI.xml).
Using these sources and doing some further investigations I managed to identify the following entities on this motherboard.
| Motherboard | SIO | lm-sensor | NCT reference | NCT description | ASRock utility | Min | Max |
|---|---|---|---|---|---|---|---|
| Vcore | NCT6791D | in0 | index80 | CPUVCORE | CPU_INPUT_V | 0.9 | 2.1 |
| +5V | NCT6791D | in1 | index81 | VIN1 | P5P0_V | 4.5 | 5.5 |
| ignored | NCT6791D | in2 | index82 | AVSB | none | ||
| +3.3V | NCT6791D | in3 | index83 | 3VCC | P3P3_V | 2.98 | 3.63 |
| CPU PLL2 | NCT6791D | in5 | index85 | n/a | SIO6_V | 0.936 | 2.613 |
| PCH +1.0V | NCT6791D | in6 | index86 | VIN4 | SIO3_V | 0.9 | 1.5 |
| ignored | NCT6791D | in7 | index87 | 3VSB | none | ||
| ignored | NCT6791D | in8 | index88 | VBAT | none | ||
| ignored | NCT6791D | in9 | index89 | VTT | none | ||
| ignored | NCT6791D | in10 | index8a | VIN5 | none | ||
| VCCIO | NCT6791D | in11 | index8b | VIN26 | SIO4_V | 0.85 | 2.0 |
| DRAM | NCT6791D | in12 | index8c | VIN2 | SIO1_V | 1.0 | 2.3 |
| DRAM VPP | NCT6791D | in13 | index8d | VIN3 | SIO2_V | 2.4 | 2.8 |
| VCCSA | NCT6791D | in14 | index8e | VIN7 | SIO5_V | 0.95 | 2.0 |
| Cold Bug Killer | NCT5567D | in12 | index8c | VIN2 | SIO7_V | 0.936 | 2.613 |
| DMI | NCT5567D | in13 | index8d | VIN3 | SIO8_V | 0.864 | 2.016 |
Mapping and naming of the different voltage lines can be identified with the help of A-Tuning's configuration file. If you run this utility then the minimum and maximum voltage values will be displayed.
| Motherboard | SIO | lm-sensor |
|---|---|---|
| Chassis fan3 | NCT6791D | fan1 |
| CPU fan1 | NCT6791D | fan2 |
| CPU fan2 | NCT6791D | fan3 |
| Chassis fan1 | NCT6791D | fan4 |
| Chassis fan2 | NCT6791D | fan5 |
| Chassis fan5 | NCT5567D | fan1 |
| Chassis fan6 | NCT5567D | fan2 |
| ignored | NCT5567D | fan3 |
| ignored | NCT5567D | fan4 |
| Chassis fan4 | NCT5567D | fan5 |
These assignments were checked manually on the motherboard. Using only one fan in different connector and checking the lm-sensor report will make this step straightforward. Luckily the fan values do not require additional computation here.
| Motherboard | SIO | lm-sensor |
|---|---|---|
| Motherboard | NCT6791D | temp1 (SYSTIN) |
| CPU | NCT5567D | temp2 (CPUTIN) |
Please note that CPU sensor is located on the motherboard and it always shows lower temperature than the core temperature of the CPU (use coretemp module if you need internal temperature values). On the other hand I did not find information about the meaning of the following entities (NCT6791D: AUXTIN0/PECI Agent 0, NCT5567D: AUXTIN0) they are ignored actually.
You can copy this new configuration file (Z390_Taichi.conf) to folder /etc/sensors.d/, restart lm-sensor service and the output of the sensors command will look like this:
nct6791-isa-0290
Adapter: ISA adapter
Vcore: 1.30 V (min = +0.16 V, max = +1.49 V)
+5V: 5.02 V (min = +4.51 V, max = +5.50 V)
+3.3V: 3.47 V (min = +2.98 V, max = +3.63 V)
+12V: 12.10 V (min = +11.42 V, max = +12.58 V)
CPU PLL2: 1.06 V (min = +0.94 V, max = +2.04 V)
PCH +1.0V: 1.06 V (min = +0.95 V, max = +1.50 V)
VCCIO: 1.22 V (min = +0.85 V, max = +2.00 V)
DRAM: 1.37 V (min = +1.00 V, max = +2.04 V)
DRAM VPP: 2.53 V (min = +2.40 V, max = +2.80 V)
VCCSA: 1.27 V (min = +0.95 V, max = +2.04 V)
Chassis fan3: 439 RPM (min = 0 RPM)
CPU fan1: 522 RPM (min = 200 RPM)
CPU fan2: 0 RPM (min = 0 RPM)
Chassis fan1: 681 RPM (min = 0 RPM)
Chassis fan2: 470 RPM (min = 0 RPM)
Motherboard: +34.0°C (high = +60.0°C, hyst = +35.0°C) sensor = thermistor
beep_enable: enabled
...
nct6793-isa-0a10
Adapter: ISA adapter
Cold Bug Killer: 944.00 mV (min = +0.94 V, max = +2.04 V)
DMI: 1.04 V (min = +0.86 V, max = +2.02 V)
Chassis fan5: 517 RPM (min = 0 RPM)
Chassis fan6: 0 RPM (min = 0 RPM)
Chassis fan4: 0 RPM (min = 0 RPM)
CPU: +31.5°C (high = +90.0°C, hyst = +75.0°C) sensor = thermistor
beep_enable: enabled
Notes:
- Beep warnings are enabled.
- There is a limitation how sensors can handle voltage values above 2.048V (read more about this topic on page 59 in NCT677xF Data Sheet). I assume this is the reason why some maximum values are truncated at 2.04V in
lm-sensors. - All fans are enabled in the configuration. You can use
ignorestatement to hide any of them. - If you modify min or max values in the configuration you have to restart the systemd service of
lm-sensors(e.g.systemctl restart lm_sensors.service). - This configuration was tested on Debian Linux 11 and Arch Linux.
- github: lm-sensors project
- nct6775 kernel module
- Nuvoton NCT677xF Data sheet
- Tweaktown.com review of ASRock Z390 Taichi motherboard
- github: aaronsb/ASRock_Z390m.conf
- Improving Nuvoton NCT6776 lm_sensors output
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