How to fix Intermittent Noise Coming from Computer?

Is your Computer making noise during start-ups or in between operation? Noise coming from the Computer system causes a lot of irritation and doesn’t allow you to concentrate on work. The intermittent noise can be caused either due to hardware problem or overheating. The various reasons for the cause of noise in the system are discussed below. Fix the problem by following the tutorial.

Noisy computer

The possible reasons for intermittent noise from Computer are as follows:

  • The computer is never cleaned out.
  •  The system is left on for a long time.
  • Due to overheating condition.
  • Hardware problem

Dusty Computer

One of the probable reasons for intermittent noise may be due to the accumulation of dust inside the case. It is possible for the fan within the power supply to become bad or dirty which causes the fan to make an excessive amount of noise. You just need to open the case and properly clean the CPU fan, power supply unit, etc. without causing any damage to the internal hardware. Cleaning must be done frequently in order to avoid accumulating dust on it.

System kept ON for long time

Avoid putting system ON when not in use. System kept ON for a long time causes some internal damage in the CPU as a result of which unnecessary sound develops.


Check whether the heat sink is operating or not. If not, then it must be replaced. Many people leave their computer case on the floor; it then fills up with carpet fiber or pet hairs or other unnecessary waste which leads to overheating of the system. Therefore, replace the CPU case after cleaning.

Hardware problem

Hardware would be the only thing remaining that can actually emit sound so the only option to pinpoint the source of the sound would be to look and listen inside the case by removing the case. The sounds are generally originated from CPU fan, loosening or break down of bearings inside the case, etc. The creepy sounds accompanied with hardware are like the sounds of grinding, rating, rattling and squealing, etc.

1. Grinding or moaning, constant or intermittent Noise

This is one of the most common noise problems in computers. It is generally caused due to a defective cooling fan, usually the one on the CPU Cooler. Smaller fans tend to fail more often, especially if they are cheap sleeve bearing types.

 Steps to fix Grinding noise:

Apply Fan Poke Method the simpler method to avoid Grinding noise.

Step 1: Take a normal piece of paper and rip off a small strip.

Step 2: Then slide the paper in between the spinning part of the fan and the base being careful not to stop the fan’s motion. Repeat this method until the fan is no longer grinding or until it’s spinning fast enough to properly cool the power supply.

Even after applying the above method, the noise still persists, then the probably best way is to simply replace the defective fan.

2. Rattling

This noise is generally caused due to loosening of screws on the case. This is usually a removable side panel rattling on its mount.

Steps to fix Rattling:

Apply masking tape over the edges of the case where it contacts the cover to prevent the noise. In addition to it some hard disk drives may rattle when they’re beginning to fail. If the problem is coupled with occasional display of the error – Hard Disk Not Found, then it’s time to replace.

3. Assorted noises right after inserting or accessing a CD-ROM disc

If you get a loud buzzing, during the insertion of CD-ROM disc then it may be due to loosening of screws. Do not tighten the screws too much, or the tray may jam. If you’re getting noise similar to that of rolling surf, or rain falling on a roof (quite pleasant, really) whenever the drive starts or stops, it may be equipped with a vibration damper in the spindle motor, containing loose material of some sort that shifts around, if your drive is one of these, it’s much less likely to buzz or generate read errors with an unbalanced disc.

Steps to fix Assorted noise:

Tighten the loose parts associated with the drive and other parts to fix assorted noise.

4. Squealing:

This type of noise is common on very old hard disk drives. There is a small copper grounding terminal, known as static brush, with a graphite tip which rides on the rounded tip of the spindle motor shaft, on drives which have the spindle motor outside the sealed HDA enclosure. Over time, the graphite tip wears down, and will vibrate, producing anything from a piercing fingernail on a chalkboard sound to a rattle.

Steps to fix Squealing:

This problem can be fixed by taking the drive out and apply a piece of double-sided tape to the back of the static brush. You may also be able to fix the noise by bending it slightly so the shaft tip rides on a non-worn section of the graphite button. This same device can be found inside some VCRs, and is known to exhibit the same problems. When the system starts to moan from within, turn OFF the power supply immediately.

The alternative method to avoid noise from the computer is by oiling the mechanical parts of the drives. The oil must be light so that it doesn’t thicken down and cause jamming of the moving parts.

Before opening the case make sure you have a sound knowledge regarding the hardware of the computer. Above-mentioned are the probable causes and solution to fix the intermittent noise coming from the computer.




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