lm-sensors

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lm-sensors (Linux hardware Monitoring) とは、パソコンやサーバの マザーボードや CPU、グラフィックボード に搭載されているセンサーから温度やファンの回転数などを取得するツールです。

読み方

lm-sensors
えるえむ せんさーず

概要

lm-sensors を利用して、

  • CPU の温度
  • CPU のファンスピード
  • マザーボードの温度
  • グラフィックボードの温度

などの情報を取得できます。

インストール

sudo apt install lm-sensors

使い方

まず初めに、 sensors-detect コマンドを実行します。

薫 $ sudo sensors-detect
# sensors-detect revision 6209 (2014-01-14 22:51:58 +0100)
# Board: ASUSTeK Computer INC. M4A89TD PRO USB3
 
This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.
 
Some south bridges, CPUs or memory controllers contain embedded sensors.
Do you want to scan for them? This is totally safe. (YES/no): yes
Module cpuid loaded successfully.
Silicon Integrated Systems SIS5595...                       No
VIA VT82C686 Integrated Sensors...                          No
VIA VT8231 Integrated Sensors...                            No
AMD K8 thermal sensors...                                   No
AMD Family 10h thermal sensors...                           Success!
    (driver `k10temp')
AMD Family 11h thermal sensors...                           No
AMD Family 12h and 14h thermal sensors...                   No
AMD Family 15h thermal sensors...                           No
AMD Family 15h power sensors...                             No
AMD Family 16h power sensors...                             No
Intel digital thermal sensor...                             No
Intel AMB FB-DIMM thermal sensor...                         No
VIA C7 thermal sensor...                                    No
VIA Nano thermal sensor...                                  No
 
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): yes
Probing for Super-I/O at 0x2e/0x2f
Trying family `National Semiconductor/ITE'...               No
Trying family `SMSC'...                                     No
Trying family `VIA/Winbond/Nuvoton/Fintek'...               No
Trying family `ITE'...                                      Yes
Found `ITE IT8721F/IT8758E Super IO Sensors'                Success!
    (address 0x290, driver `it87')
Probing for Super-I/O at 0x4e/0x4f
Trying family `National Semiconductor/ITE'...               No
Trying family `SMSC'...                                     No
Trying family `VIA/Winbond/Nuvoton/Fintek'...               No
Trying family `ITE'...                                      No
 
Some systems (mainly servers) implement IPMI, a set of common interfaces
through which system health data may be retrieved, amongst other things.
We first try to get the information from SMBIOS. If we don't find it
there, we have to read from arbitrary I/O ports to probe for such
interfaces. This is normally safe. Do you want to scan for IPMI
interfaces? (YES/no): yes
Probing for `IPMI BMC KCS' at 0xca0...                      No
Probing for `IPMI BMC SMIC' at 0xca8...                     No
 
Some hardware monitoring chips are accessible through the ISA I/O ports.
We have to write to arbitrary I/O ports to probe them. This is usually
safe though. Yes, you do have ISA I/O ports even if you do not have any
Probing for `National Semiconductor LM78' at 0x290...       No
Probing for `National Semiconductor LM79' at 0x290...       No
Probing for `Winbond W83781D' at 0x290...                   No
Probing for `Winbond W83782D' at 0x290...                   No
 
Lastly, we can probe the I2C/SMBus adapters for connected hardware
monitoring devices. This is the most risky part, and while it works
reasonably well on most systems, it has been reported to cause trouble
on some systems.
Do you want to probe the I2C/SMBus adapters now? (YES/no): yes
Using driver `i2c-piix4' for device 0000:00:14.0: ATI Technologies Inc SB600/SB700/SB800 SMBus
 
Next adapter: Radeon i2c bit bus 0x90 (i2c-0)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x91 (i2c-1)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x92 (i2c-2)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x93 (i2c-3)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x94 (i2c-4)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x95 (i2c-5)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x96 (i2c-6)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: Radeon i2c bit bus 0x97 (i2c-7)
Do you want to scan it? (yes/NO/selectively): yes
 
Next adapter: card0-DP-1 (i2c-8)
Do you want to scan it? (YES/no/selectively): yes
 
 
Now follows a summary of the probes I have just done.
Just press ENTER to continue: 
 
Driver `k10temp' (autoloaded):
  * Chip `AMD Family 10h thermal sensors' (confidence: 9)
 
Driver `it87':
  * ISA bus, address 0x290
    Chip `ITE IT8721F/IT8758E Super IO Sensors' (confidence: 9)
 
To load everything that is needed, add this to /etc/modules:
#----cut here----
# Chip drivers
it87
#----cut here----
If you have some drivers built into your kernel, the list above will
contain too many modules. Skip the appropriate ones!
 
Do you want to add these lines automatically to /etc/modules? (yes/NO)yes
Successful!
 
Monitoring programs won't work until the needed modules are
loaded. You may want to run '/etc/init.d/kmod start'
to load them.
 
Unloading cpuid... OK
$ sensors
atk0110-acpi-0
Adapter: ACPI interface
Vcore Voltage:       +1.22 V  (min =  +0.80 V, max =  +1.60 V)
+3.3V Voltage:       +3.31 V  (min =  +2.97 V, max =  +3.63 V)
+5V Voltage:         +5.06 V  (min =  +4.50 V, max =  +5.50 V)
+12V Voltage:       +12.05 V  (min = +10.20 V, max = +13.80 V)
CPU Fan Speed:      3229 RPM  (min =  600 RPM, max = 7200 RPM)
Chassis Fan Speed:  2385 RPM  (min =  600 RPM, max = 7200 RPM)
Chassis2 Fan Speed:    0 RPM  (min =  600 RPM, max = 7200 RPM)
Power Fan Speed:       0 RPM  (min =  600 RPM, max = 7200 RPM)
CPU Temperature:     +46.0°C  (high = +60.0°C, crit = +95.0°C)
MB Temperature:      +40.0°C  (high = +45.0°C, crit = +75.0°C)
 
k10temp-pci-00c3
Adapter: PCI adapter
temp1:        +30.2°C  (high = +70.0°C)
                       (crit = +90.0°C, hyst = +85.0°C)
 
radeon-pci-0600
Adapter: PCI adapter
temp1:        +48.0°C  (crit = +120.0°C, hyst = +90.0°C)

lm-sensors以外のツール

lm-sensors のようなツールは、他にもあります。たとえば、 mbmon/xmbmon は、温度、ファンの回転数、電圧を表示するツールです。

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