![]() The temperature readings are very accurate as the data is collected directly from a Digital Thermal Sensor (or DTS) which is located in each individual processing core*, near the hottest part. ![]() All of the Nano based processors are supported as well. VIA processors starting with the C7 generation of CPUs, including all the derivatives based on the C7 architecture. AMD processors starting with the first Athlon64 and Opteron processor series, all Phenom and AMD's new APU are supported. Intel processors starting with the "Core" series all the way up to the newest Core i7, including all the derivatives. If you are a developer and you are interested in creating your own addition, please see the developer's page. ![]() You can find our plug-ins and add-ons here. What makes Core Temp stand out?Ĭore Temp's ability to display each core temperature within the processor package is what sets this program apart from other system information and monitoring apps.Ĭore Temp also provides a platform for plug-ins, which allows developers to add new features and extend its functionality. How does Core Temp work?Ĭore Temp reads information directly from the DTS or Digital Thermal Sensor in each core, which allows for virtually no delays and very accurate readings. AMD Ryzen, Epyc, FX, APU, Athlon, Turion, Sempron and Opteron as well. All Intel Core, Atom, Celeron, Pentium and Xeon series. What processors does Core Temp support?Ĭore Temp supports most modern processors from Intel, AMD and VIA. The program supports processors from all three major manufacturers Intel, AMD and VIA. Core Temp makes it easy for you to monitor the temperature of any modern x86 based processor. You can see temperature fluctuations in real time with varying workloads. It is capable of displaying a temperature of each individual core of every processor in your system. In this directory you can also find information about your cooling (fan) devices, and how the PID regulators are programmed.įurther some over-temperature protection is coded firmware/hardware based (this is a good idea), and its set-up data is placed in your bios.What makes Core Temp unique is the way it works. To watch the temperatures continuously use watch -n 1 cat /sys/devices/virtual/thermal/thermal_zone?/temp The temperature is measured in miliCelcius (mC), in the case above, the temperature measured in celsius are: 77.0, 66.0, 67.0 ☌. To get the temperatures of the all thermal zones use the command $ cat /sys/devices/virtual/thermal/thermal_zone?/temp If you think that you are missing some sensors take a look at the /sys/class/thermal or the linked /sys/devices/virtual/thermal directory. Further (users) configuration can be found in /etc/sensors.d/, if you make use of this option. It will use the nffiles /etc/nf and/or /etc/nf. In a C-program you have to include #include headers. If you intend to write a program, take a look at the libsensors manual man libsensorsor make use of your /usr/share/doc/ documentation. Watching the temperature from command-line can be easily done by watch -n 1 sensors Some background information can no be found on: man libsensorsīTW this is the same library which reads the temperature as seen in the sysdirectory. I also recommend to install the developer package (includes man pages), which is the same for LTS 18.04 and LTS 20.04: sudo apt install libsensors4-dev Ubuntu 18.04: libsensors4, version 3.4.0-4 sudo apt install libsensors4 The lm-sensors project (and therefore the sensors command) makes use of the libsensor library the libraries and package are: # first let the drastic effect of the sudo command decayĬOMMAND="rdmsr -bitfield 22:16 -u 0x1B1"ĬOMMAND2="cat /sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq"Īnd here is some sample output, where I add some CPU load after awhile (temp goes from 31 to 73 degrees): $ sudo. # Also CPU0 frequency (1 is good enough, when allĮcho. ![]() # Note: it is on purpose that -a is not used. Here is a simple script to monitor the temperature (and CPU frequency) manually: #! /bin/dash The Tcc for my older i7-2600K is 98 degrees. In my case, I want bits 22-16 of the MSR at 0x1B1, aka IA32_PACKAGE_THERM_STATUS. Refer to the Intel® 64 and IA-32 Architectures Software Developer’s Manual, or in your case the AMD equivalent. The first thing to note is, in this case, what is read out of the MSR is relative to the Tcc, the limit temperature, so an additional calculation is required to determine the actual temperature. This answer is about one way to monitor processor temperature manually for some Intel processors via accessing the Machine Specific Registers (MSR) directly. ![]()
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