Knowing your CPU temperature helps you spot overheating that can cause slowdowns, crashes, or long-term wear. Windows does not show it by default, so you use a small monitoring app to read the sensor values.
What you'll need
- A computer
- A hardware monitoring app such as a reputable temperature tool
Step by step
- Pick a monitoring toolChoose a well-known free tool that reads hardware sensors. Popular options display CPU temperature alongside fan speeds and load.
- Download from the official sourceGet the app only from its official website to avoid bundled junk or fake copies, then install it following the on-screen prompts.
- Open the app and find the CPU sectionLaunch the tool and look for a section labeled CPU or with your processor's name. The temperature is shown in degrees Celsius, often per core.
- Read idle and load temperaturesNote the temperature while the PC is idle, then run a demanding task or game and watch how high it climbs under load.
- Compare against safe rangesMost desktop CPUs sit comfortably in the 30 to 50 C range at idle and can reach 70 to 85 C under heavy load. Sustained readings near the manufacturer limit suggest a cooling problem.
Handy tips
- Many motherboard BIOS or UEFI screens show CPU temperature without installing anything, though only while you are in that screen.
- Clean dust from fans and heatsinks, since buildup is a common cause of rising temperatures.
- If temperatures are high, check that your case has good airflow and that the CPU cooler is seated firmly.
Heads up
- Only download monitoring tools from their official sites. Copies from unknown sources can contain malware.
FAQ
What is a normal CPU temperature?
Idle temperatures around 30 to 50 C are typical, and under heavy load many CPUs run 70 to 85 C. Check your specific processor's rated maximum for the exact safe limit.
Can I check CPU temperature without extra software?
Yes. Enter your computer's BIOS or UEFI setup at startup and look for a hardware or health page. It shows the current CPU temperature, but only while you are in that screen.
My CPU is running hot. What should I do first?
Clean out dust, make sure all fans spin, and confirm the cooler is attached properly. Reapplying thermal paste can also help on older machines.