Computer Making Noise
Computer Making Noise

What to Do When Your Computer Makes Strange Noises

Encountering strange noises from your computer can be unsettling, but don’t panic. Here’s a step-by-step guide to identifying and fixing common sources of computer noises:

Identifying the Noise

  1. Clicking Noises: Often associated with hard drives, clicking might indicate a failing HDD. It’s essential to back up data and consider replacing or upgrading to an SSD​​.
  2. Grinding Noises: These can originate from fans, hard drives, or optical drives. They could signify mechanical issues or obstructions​​.
  3. Buzzing Noises: Usually caused by fans, power supplies, or electrical components. Buzzing from the CPU fan might indicate a failing bearing​​.
  4. Whining Noises: Typically associated with fans, a whining sound could suggest a malfunctioning fan​​.

Investigating Further

  1. Case and CPU Fans: Fans should normally produce a low hum. However, clicking, high-pitched, or additional noises may indicate a failing fan. Causes include a loose CPU fan, a cable hitting the fan, or a bad fan​​.
  2. Hard Drive Noises: While some noise is normal, repetitive clicking (known as the ‘click of death’), excessive humming, knocking, or thumping are warning signs of a failing hard drive​​.
  3. Power Supply Issues: A noisy power supply fan, either due to being dirty or failing, can cause excessive noise. Cleaning the fan with compressed air might help, but a persistent noise may require replacement of the power supply​​.

Practical Steps to Resolve Noise Issues

  1. Shut Down and Inspect: Power off your computer and open the case. Listen to isolate the noise’s location. Inspect the fans, hard drives, optical drives, and power supply for damage or dust.
  2. Clean and Secure Components: Use compressed air to clean fans and vents. Ensure all components are securely installed and cables are not interfering with fans.
  3. Check for Updates and Diagnostics: Run diagnostics for specific components like hard drives. Update drivers and firmware for your hardware components.
  4. Consider Replacements: If a component like a fan or hard drive is consistently noisy despite troubleshooting, consider replacing it. SSDs are a quieter alternative to traditional HDDs.
  5. Professional Help: If the problem persists and you’re uncomfortable with DIY solutions, consult a professional technician.

Preventing Future Noise Issues

  • Regular Cleaning: Keep your computer free from dust to ensure smooth operation of fans and other moving parts.
  • Adequate Ventilation: Ensure your computer has sufficient airflow to prevent overheating, which can cause fans to work harder and louder.
  • Backup Data Regularly: Especially important if the noise originates from the hard drive, to prevent data loss.


Strange noises from your computer can indicate a range of issues, but by carefully identifying the type of noise and systematically troubleshooting, most problems can be resolved. Regular maintenance and early detection are key to preventing more serious issues.

Eric Chan

Hi! I’m Eric and I work on the knowledge base at  You can see some of my writings about technology, cellphone repair, and computer repair here.

When I’m not writing about tech I’m playing with my dog or hanging out with my girlfriend.

Shoot me a message at if you want to see a topic discussed or have a correction on something I’ve written.

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