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+---
+title: Monitoring
+---
+
+[toc]
+## Monitoring
+### Sensors
+The `lm_sensors` package shows temperatures, fan pwm and other sensors for your CPU, GPU and motherboard.  
+Run `$ sensors` to get the output.  
+
+#### Support for motherboard ITE LPC chips
+Support for this type of chip does not come built in to `lm_sensors`.  
+In the AUR the package `it87-dkms-git` provides a kernel module with support for a variety of ITE chips. It pulls from [this](https://github.com/frankcrawford/it87) git repo. You can find a list of supported chips there. See [this issue on lm_sensors git repo](https://github.com/lm-sensors/lm-sensors/issues/134) for background info.  
+
+The kernel driver can be automatically loaded on boot by putting `it87` into `/etc/modules-load.d/(filename).conf`  
+The option `acpi_enforce_resources=lax` also needs to be added to `GRUB_CMDLINE_LINUX_DEFAULT` in `/etc/default/grub` or your bootloader equivalent.  
+
+### CoreFreq
+[CoreFreq](https://github.com/cyring/CoreFreq) can display a lot of information about the CPU and the memory controller.  
+
+To run, the systemd service `corefreqd` needs to be enabled.  
+CoreFreq also depends on a kernel driver. Simply put `corefreqk` into `/etc/modules-load.d/(filename).conf` to load it automatically on boot.
+
+Access the TUI using `$ corefreq-cli`  
+
+A few interesting views:  
+`Shift + C` shows per thread frequency, voltage and power, as well as overall power and temperature.  
+`Shift + M` shows the memory timings, frequency and DIMM layout.  
+
+### CoreCtrl
+CoreCtrl displays a range of information for AMD GPUs.  
+
+### Error monitoring
+Some applications have hardware error reporting built-in.  
+#### Kernel log
+For others, try checking the kernel log.  
+`$ journalctl -k --grep=mce`  
+
+#### Rasdaemon
+You can also install `aur/rasdaemon` and enable its two services.  
+`# systemctl enable --now ras-mc-ctl.service`  
+`# systemctl enable --now rasdaemon.service`  
+
+`$ ras-mc-ctl --summary` shows all historic errors  
+`$ ras-mc-ctl --error-count` shows memory errors of the current session  
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