Troubleshooting: ‘CPU Over Temperature Error’ After Bootup

Encountering the "CPU Over Temperature Error" message after booting up your system can indicate that the CPU is running at an unsafe temperature. This guide provides step-by-step troubleshooting to resolve the issue effectively.

What You'll Learn

Check the CPU Cooler Fan

• Access BIOS Setup: Press F1to enter the BIOS setup in EZ Mode. Look for the current CPU temperature. If the temperature is around 85°C or displayed in red, it’s a sign of overheating.

• Fan Status: Check the CPU fan speed in the BIOS. If the speed shows as N/A or the fan isn’t spinning, verify that the CPU cooler fan is properly connected to the CPU_Fan header on the motherboard.

Inspect the CPU Cooler Fan for Dust or Damage

• Check for accumulated dust on the fan blades or signs of aging or damage.

• Clean the fan blades carefully to remove any dust.

• If the fan is damaged or worn out, consider replacing the CPU cooler.

Reapply Thermal Paste

• Power off the system and remove the CPU cooler.

• Inspect the thermal paste on the CPU surface. If it has hardened or degraded, clean it off and reapply fresh thermal paste evenly.

Restore BIOS Default Settings

• Overclocking the CPU can cause excessive heat. If the CPU is overclocked, enter the BIOS setup and restore the default settings.

• For detailed instructions on resetting BIOS settings, refer to your motherboard’s user guide.

Upgrade Your CPU Cooler

• If you need to continue overclocking but the CPU temperature remains high, consider upgrading to a more efficient CPU cooler with better heat dissipation capabilities.

Clear CMOS

• If the problem persists, try clearing the CMOS to reset the motherboard’s settings. Refer to your motherboard’s manual for guidance on this process.