How to Reduce Power Supply Noise on Your PC

Clean the PSU fan filter/intake periodically to avoid this problem. Avoid placing the rear of the case too close to a wall or otherwise obstructing the exhaust mesh of the PSU in any way. Failure to do so will contribute to heat buildup and consequently increased fan noise.

1. Why is my power supply fan loud?
2. Is it normal for a PSU to make noise?
3. Why is my PC power supply so loud?
4. Why is my computer so loud on startup?
5. Does a power supply need a fan?
6. Should power supply fan always run?
7. Can you turn off the power supply fan?
8. How loud should PC fans be?
9. How loud is a normal PC?

Why is my power supply fan loud?

Usually if a system gets louder when loaded, it's the CPU fan, not the PSU fan that you are hearing. This fix is for when your PSU fan starts making that low pitched growling noise. ... It's just like the fan needs to be "oiled".

Is it normal for a PSU to make noise?

The most likely cause for buzzing would be the fans but as you've said, you don't think that is the case. If the sound relates to electrical buzzing, the likely source is the Power Supply (PSU) coils. ... Since it's intermittent, the offending fan may be on a temperature switch (it turns on when it gets too hot).

Why is my PC power supply so loud?

This might seem like a no-brainer, but it isn't uncommon for PC builders to either skimp on PSU screws or forget to tighten them. If your PSU isn't secured to the case, the rotating mass of the built-in fan can cause vibrations that are loud enough to be heard.

Why is my computer so loud on startup?

Most materials contract when cold and expand when warm. That means colder = a bit smaller and warmer = a bit larger. Now when you start your computer, everything is cold, including the fans and their internal parts so they have some space to wiggle and vibrate as the fan spins, which makes a lot of noise.

Does a power supply need a fan?

In most power supplies, the fan is there mainly to cool the power supply. Its case cooling benefits are usually minimal. ... If noise is a concern, you could always try a quieter fan. But a fan is better than no fan since power supply components do run hot.

Should power supply fan always run?

The fan should run. Otherwise, make sure that the connector to the front panel on/off switch is properly inserted in the motherboard. Also, make sure the CPU fan is properly connected.

Can you turn off the power supply fan?

Yes,your psu will be fine with the fan turned off. It is made to withstand temp up to 50c or even more in full load which in no way will you ever reach with just from downloading steam games and defragging the hdd.

How loud should PC fans be?

You'll find fans with 20 dBA of noise or less are very quiet, while fans with 25 or 30 dBA are a bit louder. Size: Fans come in multiple sizes, and each fan slot on your case or heatsink will usually only fit one size fan.

How loud is a normal PC?

The noise generated by a 'standard' PC typically varies from 30dB(A) to 50dB(A).