Technology

PC making strange noises – How to identifying unusual hardware sounds?

 

As a PC owner, you likely know the usual sounds your computer makes – the whir of the fans, the buzz of the hard drive, the beeps at startup. But when your PC starts making strange or unexpected noises, it can be worrying. Unusual sounds indicate a problem with one of your computer components and often mean it’s time for repairs or an upgrade. 

High pitch whining 

Noises like whines or screeches coming from your computer are never a good sign. These types of noises usually indicate an issue with one of your PC’s fans – whether it’s the processor, GPU, power supply, or case fans. The specific fan making the noise helps you identify the problem. For example, a whining CPU fan often means it’s failing and needs to be replaced. A screeching GPU fan points to an issue with the graphics card fan needing repairs. And loud whirring from the PSU or case fans suggest they are wearing out or a wire is clipping the blades. To resolve fan noises, carefully open up your PC to locate the noisy fan. You try cleaning any dust buildup with compressed air. But high-pitched noises usually mean the fan will need to be replaced soon.

Buzzing 

Hearing a distinct buzzing or humming noise from your PC is typically a sign of electrical interference. This noise comes from different sources like wire coils, power circuits, or transformers inside your computer. But often it stems from improper shielding or grounding of components or cables. Check that all your wires and components are shielded and securely connected. Ensure all screws and mounts are tightened. Use cable ties or wraps to tidy any loose wires. You also try plugging your PC into a different power outlet in case the buzzing is from electrical interference in the line. Persistent humming or buzzing noises will require further investigation and necessitate hiring a qualified repair technician.

Grinding noises

If you notice grinding noises on your PC, the most common culprit is a hard disk drive (HDD) failure. The grinding sounds are typically caused by the drive’s read/write heads malfunctioning or the motor that spins the disks seizing up. Immediately back up your data and replace the faulty HDD if possible. Grinding noises indicate the hard drive is failing fast, so act quickly to save your files before it dies completely. However, grinding also sometimes comes from case or CPU fans if a cable gets stuck in a blade. Open the case and inspect all fans to ensure they spin freely and wires are safely out of the way. Grinding noises are always bad news, so getting to the source and correcting it ASAP is crucial. For more details, visit here WindowsGuided.com.

Buzzing from Speakers

Hearing buzzing or humming noises from your speakers or headphones is commonly caused by electromagnetic interference (EMI). Nearby electronics like routers, cordless phones, microwaves, and fluorescent lights introduce noise in the audio signal. Try moving devices that could cause interference farther away from your PC and speakers. Use shielded audio cables to connect speakers, and make sure all cables fit securely. Switch to wired network and phone connections if possible to reduce EMI issues. You also try plugging speakers/headphones into different audio jacks or USB ports in case the issue is with that specific output. Persistent buzzing requires adding shielding, ferrite beads, or a ground loop isolator to remove the electromagnetic noise from your audio system.