Use BIOS/UEFI hardware monitoring
Use your operating system’s built-in system monitor
Use third-party monitoring software
Use command-line tools
Check the CPU temperature sensor through motherboard software
Use a laptop manufacturer’s diagnostic utility
Use a hardware monitoring app in the taskbar or system tray
Use remote monitoring tools if the system is headless
Read the temperature from the CPU cooler or motherboard sensor data
Use a thermal monitoring API or library in scripts or programs