Worried about your PC’s CPU temperature is too high? What is a good CPU temp at idle and during running heavy tasks? Generally, an ideal CPU temp is 30-45°C and never higher than 90°C. This post will show you more about CPU temp and how to check and lower the temperature of your CPU.  

Quick CPU Temperature Guide:

• Good CPU temperature: 30°C to 40°C (86°F to 104°F ) for 10% CPU usage

• Safe CPU temperature: below 80°C (176 °F)

• Risky CPU temperature: 80°C-85°C (176 °F to 185 °F )

• Dangerous CPU temperature: above 90°C (194 °F)

What is a Good CPU Temperature?

Normally, a computer CPU temperature should be 30°C (86°F) to 40°C (104°F) when idle and under light use.

What should my CPU temp be when gaming? When you’re gaming, streaming or running other hardware-intensive programs, the CPU should run at 70°C (158°F) to 80°C (176°F).

What is a safe CPU temp? You should keep your computer CPU temperature under 80°C (176 °F).    

What Happens If Your CPU is Getting Too Hot?

When your CPU gets too hot, it protects itself through thermal throttling, slowing down performance to reduce heat, which causes lag and stuttering. What’s worse, the system will trigger an automatic emergency shutdown.  

Why is My CPU Temp So High?

Your CPU temp is high because of poor airflow, dust buildup blocking vents, or dried-up thermal paste that can no longer transfer heat, as well as heavy background workloads.

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How to Check CPU Temperature?

• Via BIOS: Restart your PC > press F2 or Delete during startup to view the temperature directly in your motherboard's system health menu.

• For Windows: Download HWMonitor or Core Temp > Open the software to see real-time individual core temperatures.

• For Mac: Use iStat Menus or open Terminal > type sudo powermetrics to view thermal data.

How to Lower CPU Temperature When Gaming

• Improve Airflow: Clean out dust with compressed air, and ensure your PC case has space to breathe.

• Boost Fan Speeds: Use software like MSI Afterburner to set a more aggressive fan curve.

• Limit FPS: Cap your FPS in-game or enable V-Sync to reduce the CPU's workload.

• Repaste & Cool: Reapply high-quality thermal paste, or upgrade to a better liquid or air cooler.

• Undervolt: Slightly lower CPU voltage using Intel XTU or AMD Ryzen Master to reduce heat without losing performance.

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