You check CPU temperature using monitoring software or built-in system tools, depending on your operating system.

On Windows

• Install a lightweight monitoring app such as Core Temp, HWMonitor, HWiNFO, or Open Hardware Monitor; once opened, they show current temperature for each CPU core in real time.

• Some motherboard utilities (ASUS Armoury Crate, MSI Center, etc.) also display CPU temperature under their hardware monitoring sections.

In BIOS/UEFI

• Restart the PC and repeatedly press Delete or F2 (varies by motherboard) to enter BIOS/UEFI setup.

• Look for a “Hardware Monitor”, “PC Health Status”, or similar section, where CPU temperature is shown; this reflects idle or near‑idle temperature only.

On Linux

• Install the lm-sensors package, run the sensor detection tool, then use the sensors command in a terminal to display CPU temperatures.

• You can also read temps from /sys/class/thermal/thermal_zone*/temp or use GUI tools like Hardinfo depending on your distribution.

If you say which OS you use (Windows, macOS, Linux, Android, etc.), a more step‑by‑step guide can be given.