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When it comes to power supplies, PC manufacturers generally want to equip themselves with a reliable and efficient power supply, but modern advancements mean that you can face increasingly quiet power supply options that weren't available in the past.

Most power supplies use fans to dissipate heat, which is the source of the annoying hum.

However, manufacturers still have a way to solve the power supply sound output problem by using a hybrid or fanless model. However, no matter what PSU design you are looking for, it is hard to find the best silent PSU for your build. So we decided to sort through the different boxes to find you a truly quiet power supply option.

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The featured winner is of course Seasonic Prime 600TL. Since it is fanless, the power supply can provide truly quiet operation. When choosing the best silent power supply, the Seasonic power supply will not go wrong. Due to its fanless operation, SSR600TL is the quietest power supply on the market. The power supply uses a radiator only for heat dissipation, and is one of the most efficient power supplies currently.

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is closely followed by another seasonal Prime PSU. Unlike the 600 model, the SSR650TR has a fan and will passively cool until a certain level of heat is reached.

This type of power supply is called a hybrid model because it can be passively cooled to some extent before the fan starts. This power supply is newly certified for its titanium efficiency and is highly regarded as one of the best power supplies you can buy right now.

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Our next recommendation is not the quietest PSU on the list, but it is high quality and efficient.

Don't let the name "Quiet!" fool you: this PSU will become very loud under heavy load. In other words, the silent wing fan is almost inaudible. In addition to noise, this power supply also provides gold-level 80+ energy efficiency certification (up to 93%), unparalleled in similar products.

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RMx series is known for its quality and low noise level. This also applies to Corsair HX and AX series, but this PSU is very affordable. The

Corsair RM650x has a "zero fan mode", which is essentially Corsair's hybrid PSU technology, making the PSU semi-passive. Until the power supply reaches 40% load, the power supply will not make any sound, allowing it to operate quietly in most cases.

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This quiet power supply from EVGA isn't just rugged hardware; It's an efficient workhorse that won't let you down and comes with a long-lasting warranty. The

EVGA Supernova T2 is a quiet PSU until under heavy load, but still, it is still considered a superior PSU. Like many products on this list, this is a semi-passive power supply that provides quiet operation for the most common tasks you perform on your PC.

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Naturally, reducing the power supply can reduce noise output, but not everyone can afford the goal of increasing power. Fortunately, size is usually less important.

There are several factors that affect the noise output of the power supply. Before buying a power supply next time, you should definitely pay attention to these factors. Quality

is a must, whether you want to buy a quiet power supply or not.

This is because the primary purpose of the power supply is to provide valuable power for expensive components. Poor quality power supplies will produce noise for whatever reason, such as coil vibration and poorly structured fans. Cheaper power supplies can also be made with thinner metal housings so that transmitted vibration can be sent to the PC housing. Always choose a well-built, reliable power supply and provide a solid warranty!

With this in mind, the options in this article represent the world's trusted manufacturers of power supplies providing quality products, energy efficiency, and a decent warranty.

power supplies are usually very efficient now, but they are not perfect and still generate some heat. Passive PSUs (also known as fanless PSUs) are cooled through the use of a large number of heat sinks and excellent efficiency. Since there are no moving parts, a fanless power supply can provide you with truly quiet operation and should be considered for energy efficient construction. The

semi-passive power supply (or the well-known hybrid power supply) uses the fan profile / zero fan mode to operate only when needed. This means that the power supply fan will run in an idle state until a certain percentage of load is reached, at which point the fan begins to spin. The percentage varies by model, but in many cases the power supply will remain silent until it reaches a load of approximately 40%.

Watt

600W

Certified

80+ Titanium

Modular?

Yes Fully

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Wattage

650W

Certified

80+ Titanium

Modular?

Yes Fully

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Watt

550W

Certified

80+ Gold

Modular?

Yes Fully

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Watt

650W

Certified

80+ Gold

Modular?

Yes Fully

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Watt

850W

Certified

80+ Titanium

Modular?

Yes Fully

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Watt

600W

Certified

80+ Titanium

Modular?

YesFully

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PROS

Very efficient

Quiet

Reliable

High quality

Fanless

Disadvantages

Highest price

Seasonic is widely known for its power supply and can be said to be one of the most reliable manufacturers in the market. SSR600TL is one of the best silent power supplies that money can buy. This

Capacity anyway. If you can beat the price of the SSR600TL and want truly quiet operation on your PC, look no further!

Watt

650W

Certified

80+ Titanium

Modular?

Yes Fully

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PROS

Very efficient

Very quiet

Rugged

Semi-passive

Disadvantages

Expensive

Not surprising to see another Seasonic entry here, because (as we mentioned before), they are a very good manufacturer PSU . The Prime series is excellent, with high efficiency and unmatched performance.

This 650 W model is a semi-passive model and its mode of operation is slightly different from that of the fanless model. The power supply will remain silent because its fan has been idle until it reaches a certain load. Even under heavy load, it will remain quiet due to its fluid dynamic bearing fan. Seasonic calls it a hybrid and it is one of the quietest 650W power supplies on the market while operating within its range (around 18 dBa on average). The SSR650TR PSU is also fully modular and comes with a 12-year warranty. The

Prime series is Seasonic's flagship product to re-enter the power supply field, and now its product series also includes gold and platinum models. This model is a great option for anyone looking for the best semi-passive power supply. SSR650TR not only provides titanium-level efficiency and top-notch build quality, but it is also quiet and almost silent.

Watt

550W

Certification

80+ Gold

Modular?

YesFully

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PROS

Excellent voltage regulation

High quality build

High efficiency

Quiet

Disadvantages

The cable is bulky

Quiet guys! They are no strangers to making high-quality power supplies, and as the name suggests, they are also very quiet. This 550W model comes from be quiet! Straight Power 11 series, each series strikes a balance between low noise and high performance.

This PSU is not the quietest, especially under heavy load due to lack of fan control. That said, it has almost no sound under low loads and will maintain this state when using up to about 300 watts of power. To improve cooling and life, we have seen internal wireless connections on the DC side. This 550W power supply is completely modular and can provide up to 93% of the 80+ gold efficiency ratings. Although efficiency may not be as good as the top-tier Dark Power Pro series, this model's performance and quality are still top-notch.

Although it does not have the best acoustic performance on the list (13.5 dBa on average), the quality of the be quiet power supplies is still on the list. This is a great overall power supply that starts quietly and works well as part of any build, but if you're looking for something you'll never see, you'd better get a tip one and two.

Watt

650W

Certified

80+ Gold

Modular?

Yes Fully

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PROS

Very quiet

Good charge regulation

High quality capacitor

Fully modular

High efficiency

Disadvantages

Only one EPS connector

The Corsair RMx series is one of the most popular reasons on the market. Like the HX and AX models, these power supplies provide total modularity and superior efficiency. The

RM650x has Corsair's "Zero Fan Mode" which is essentially a smart fan controller that only turns the fan on when the system reaches a certain load (much like the SSR650TR). When using the zero fan mode, the fan will not start spinning until the power supply reaches 40% load, as is the case with the HX series. The PSU will continue to provide full power at temperatures up to 50 ° C, so it clearly has components that can withstand heat. In addition to thermal performance, RM650x also has a fully modular feature, making it easy to install and upgrade in the future. This model has an 80+ gold efficiency rating and a convenient 10-year warranty. This Corsair

power supply is an excellent choice, with excellent performance and quiet operation. In addition to having high quality, excellent performance and being from a reputable company, this PSU also benefits from its very useful 10-year warranty.

Watt

850W

Certification

80+ Titanium

Modular?

is complete

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PROS

high efficiency

high quality capacitor

very quiet

semi-passive

fully modular

disadvantages

short distance between Molex connectors

EVGA is the most popular power supply manufacturer on the market today One of quality and efficiency. As the range of PSUs continues to expand, installing EVGA PSUs along this line is very simple, and the Supernova 850W T2 is well deserved.

Supernova T2 is a semi-passive power supply, which is naturally very quiet, but there will be some noise when fully loaded. The fan will not spin most of the time, but for higher temperatures, you can disable this mode to keep the fan spinning. To help generate noise, we see the use of dual ball bearing fans instead of hydrodynamic bearing fans, which will also increase service life.

This power supply has passed Titanium 80+ efficiency certification (this is one of the best today) and can output 94% (115VAC) / 96% (220VAC ~ 240VAC) under typical load. Additionally, this PSU is also fully modular, giving you more flexibility and space for cable management. The EVGA Supernova T2

Series is exceptional, an excellent choice for quality, reliability and efficiency. This is a premium power supply from a highly respected manufacturer, and it will run quietly as long as you keep power consumption low.

Choosing the best silent power supply can be tricky because of the limited number of options available. Be sure to use

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