Посты автора alexxlab

alexxlab

alexxlab

http://team357.org

120Mm fans pc: Computer parts, laptops, electronics, and more

Опубликовано: January 12, 2021 в 3:36 pm

Автор:

Категории: Miscellaneous

2022’s Most Effective and Best 120mm Cooling Case Fans

Take a moment and imagine your dream PC. You’ve got the latest processor jacked into the best Z270 motherboard, four GTX-1080’s in quad-SLI and even the most over-clockable DDR4 RAM, topped off with the liquid cpu cooler. Finally, you’ve spent the last couple days tweaking your overclock to achieve peak performance. Even after all this work, you check the online benchmarks and find that there are still a few users who’s systems out clock yours.

How is this possible? Maybe it’s just luck of the draw, and they happened to come across an i7 with a more powerful stepping? Maybe they’ve modified their cooling system beyond what your average consumer is capable of?

Chances are, the answer is much simpler than that. When you read write-ups explaining how users achieve record breaking performance, you’ll often find that they spend a lot of time talking about case selection and fan layout. To some, this will sound basic. But even though a high-performance CPU cooler is very effective at removing heat from the chip itself, they do not do much to remote the heat from the case. To do that, you need a proper cooling fan.

Believe it or not, a couple extra fans can quickly drop your temperatures by several degrees. This can be the difference between your CPU running in turbo mode under load, and the same CPU being throttles.

120mm fans are often the number one choice for enthusiasts. While they aren’t the biggest fans on the market, most cases are designed to accept these fans. Often, they’re viewed as offering the best price to performance ratio. But there is a huge difference in performance between a high-quality fan and a lazily designed knockoff.

We wanted to find out if there was much of a difference between one high end fan to another. We picked up the most popular fans on the market, and put them to the test to see which ones we liked the best. In this guide, we’ll be taking a look at our three favorite fans. After we explore the differences, we’ll help you find out if any of these fans are right for your case.

Noctua NF-F12

Just ask any enthusiast, Noctua is one of the most known and respected brands in the cooling industry. We found in our CPU air cooler review that their dual tower system performed the best under load, and a major part of their system was the high-end fan. If you’re trusting Noctua coolers to keep your CPU frosty, it would make sense that you use one of their high quality Noctua NF-F12 120mm fans to keep the airflow steady.

Design

With just a quick glance, you can always tell when somebody is using Noctua fan. Their unique two-tone beige and brown is unique in the cooling industry, and is sure to stand out from the competition. The combination of light and dark tones mean that it looks good in almost any case. In a world where the majority of enthusiast-grade products are designed with a very ‘in your face’ look, the professional design of Noctua’s fans are refreshing, and we’re sure you’ll agree.

Technology

At first, this might appear to be ‘just another fan.’ But there was a lot of innovation put into this product, and it requires a close look to notice. The first thing you’ll see is that there is what appears to be two sets of blades. You’ll notice that the smooth curves of the dark brown blades are the actual fan itself, and the tan blades behind it are called stator guide vanes. The purpose of these vanes is to stabilize the air coming out of the fan, reducing noise and allowing it to disperse more effectively.

There are three little notches in each of these vanes. If you’ve ever paddled a canoe, you’ve likely noticed the little whirlpools that appear next to your paddle during each stroke. This is called a vortex, and the same thing happens with air when the direction is changed rapidly. The three notches in these fans are able to reduce vortexes and improve the effectiveness of the vanes.

While you can’t see it from the face, the bearing that connects the fan to the motor has also seen some improvements in this generation. Noctua is calling it the SSO2 bearing, and the primary difference is the placement of the magnet. It’s mounted much closer to the axis of the fan, providing more stability. This keeps the fan from producing micro vibrations. A stable fan is able to more effectively cut through the air, something that is essential when you want to push large volumes of air with low levels of sound.

These two improvements may seem simple, but Noctua has addressed the two biggest issues with cooling fans. From these updates alone, we expect to see significant improvements in both performance and noise.

Air Flow

This fan uses a technology known as pulse width modulation. Imagine you’re driving a car. If you were to floor the gas pedal, you’d probably go pretty fast. But let’s say that you modulated your foot so it was on the gas for one second, and off the gas for another second. Even though your foot is only on the gas half the time, you wouldn’t travel at half the speed. PWM operates on a similar principle, only several times per second. This allows the fan to spin at 1500 RPM and push a very large volume of air. Because of the PWM technology, this speed isn’t incredibly accurate. Speed can vary up to 10% depending on air flow conditions. The end result is that the fan creates a pressure of 2.61 mm h30, enough to produce a pretty significant amount of air flow.

Noise

At low or medium speeds, we could barely hear the sound of the fan running. It was only at the highest speed, 1500 RPM, that we noticed a soft whirring sound. Unless you’re pushing serious temperature, not all consumers will need to run at this speed. So Noctua has included a small adapter that can be connected in series with the fan. When attached, it will drop the maximum fan speed to 1200 RPM. At this rate, you can enjoy virtually silent air cooling.

Corsair Air Series SP120

The only company that can compete directly with Noctua is Corsair. Their products tend to be a little more on the affordable side, but still provide enough performance for most consumers.

Design

The Corsair Air Series SP120 is, for the most part, a black fan. But the round bezel that surrounds the blade is highlighted with a splash of color, allowing it to look great in both dark and lightly colored cases. One of our favorite design elements is the rounded design. You’re not just getting a typical square fan, it looks more like a completely circular fan with mounting points. In our case, the design of the fan provided a very professional look. It’s something that you can’t fully appreciate until you see it for yourself.

The colored ring itself is actually just a plastic cover. This can be removed or changed as you see fit. This design also allows for some creativity with placement. You can easily remove the ring and attach two fans together, doubling the air flow through a single vent.

Technology

The SP120 is available in four separate packages. You can get a single, or a dual model as we described above. Each of these models is available pre-configured for high pressure, or low noise. This allows corsair to use a single speed fan motor, increasing stability at high speeds.

Air Flow

With a maximum air pressure of 3.1 mm h3O, this might seem like it’s one of the most powerful fans on our list. But the blade design means that the pressure is greater towards the edge of the blades. Combined with the round fan guard, this makes for a very effective way to push air. The end result is over 62 CFM of airflow, one of the highest ratings we’ve seen.

Noise

Such impressive airflow comes at the price of silence. But even though the fan wasn’t completely silent, we were still pretty impressed with how quiet it was. The fan was certainly much quieter than our stock cooler, although you’ll definitely notice if you’re paying attention.

Rosewill 120mm Long Life Sleeve Case Fan

When we’re looking for affordable PC accessories, Rosewill has always been one of our go to brands. With a large selection of PC cases on the market, it makes sense that Rosewill would also sell the fans to go along with them.

Design

The Rosewill 120mm Long Life Sleeve Case Fans are your “average joe” fans. Rosewill wanted to make a product that was available at a rock bottom price, and the obviously weren’t willing to compromise on quality. Unfortunately, this means that any elements of fancy design went out the window. Instead, what you get is a plan black fan that is made with high quality components. The plastic mounting holes are all reinforced, allowing you to screw them in tight without damaging anything. If your fans are going to be tucked away in the nether regions of your computer, you might as well slap a Rosewill fan where nobody will see it.

Technology

The reason that such a basic fan made our list was durability. The thing with most basic fans is that the sleeve (the plastic sheath that attaches the bearing to the fan blades) is generally made from very thin plastic to reduce weight. Over time, this sleeve wears out and the fan begins to vibrate. Rosewill uses a long-life bearing, allowing them to last many years without wearing out.

Air Flow

At 38.2 CFM, this isn’t the highest performance fan on the market. But they give you four in a pack for a reason. These fans should be used primarily as exhaust or inlet fans. They aren’t designed designed with complicated pressures or airflows in mind. You place a couple of these fans at the front of the case, drawing cool air in towards your graphics cards. Then one or two of them are placed at the top, providing an exhaust for the hot air. While the numbers might not look great on paper, this system can provide you with 80% of the cooling capacity of a high-end setup.

Noise

The benefit of low speed fans is that there is very little noise. While these fans aren’t exactly silent while running on full, a high maximum RPM means that these fans will spend very little time on high speed. Without spending the big bucks, you can still get a virtually silent cooling system.

Which 120mm Cooling Case Fan is Right for Me?

Fortunately, choosing the right fan is a simple process. Looking for the ultimate in cooling capacity with minimal noise? The Noctua NF-F12 is your only choice. This line has consistently been the best performing on the market, and the latest edition is no different.

Looking for a stylishly good look and surprisingly competitive? Be sure to check out the Corsair Air Series SP120. This is one of the most unique looking fans on the market, and Corsair backs up its looks with impressive performance that will improve the cooling in any enthusiast level case.

If you’re scoffing at the price of these fans, you can rest easy. For the same price as just one of the above fans you can pick up a stack of Rosewill Long Life Sleeve Case Fans that perform almost as good as the top end brand, with very little markup.

Noctua

Noctua offers a wide selection of fans for various demands and purposes. Use the following criteria to select the model that works best for you:

  1. Size and shape: The first thing you should determine is what size and shape of fan you need. For example, you might need a 120mm size fan for your water cooling radiator vs a 40mm size fan for your router. Note that for some sizes there are different shapes (e.g. square frame and round frame for 140mm size) and depths (e.g. 25mm and 15mm for 120mm size, 20mm and 10mm for 40mm size, etc.) available, so also check which shape and depth is required (e.g. round frame fans for most 140mm CPU coolers vs square frame fans for most 140mm water cooling radiators). If you have enough space, always choose the bigger depth fan (e.g. 120x25mm rather than 120x15mm) for the best possible performance.


  2. Voltage: Most Noctua fans are 12V, which is the standard for PC applications. Note, though, that there are also 5V and 24V models available for other applications. The latter can easily be recognised by the “5V” or “industrialPPC-24V” designations.


  3. Product line and colour scheme: In addition to the standard line of premium-quality quiet fans that is easily recognisable by the signature brown colour scheme, Noctua offers 3 dedicated product lines for specific demands:
    • redux: streamlined, more affordable packages for price-conscious users, grey colour scheme


    • chromax: black fans with swappable anti-vibration pads in various colours, ideal for coordinating the fans with individual build colour scheme


    • industrialPPC: ruggedised high-speed versions for challenging environments, black colour scheme

  4. Connector: Noctua fans are available with standard 3-pin and 4-pin PWM connectors. The latter can be identified by the “PWM” designation. Choose 4-pin PWM versions if you would like to use the PWM fan speed control of your motherboard (or other devices). The 3-pin versions can only be speed-controlled by reducing the voltage (or using the supplied Low-Noise Adaptors in the case of FLX and ULN versions). However, as explained in this FAQ, 3-pin fans can also be used on most 4-pin headers and vice versa. Note that some models also come with adaptors for 4-pin peripheral connectors, 2-pin or USB connectors, or the OmniJoinTM adaptor set that allows the fan to be connected to proprietary fan headers. Please refer to the specifications of the individual models for details.

  5. Noise level and RPM speed: Please refer to the dB(A) specification of each individual model for selecting one that fits your requirements regarding noise and performance. In general, higher RPM speeds result in higher noise levels, but note that the relation of RPM speed and noise differs from fan size to fan size (e. g. a 2000rpm 40mm fan may be quieter than a 1500rpm 120mm fan) and from fan design to fan design (e.g. the NF-S12A 120mm fan at 1200rpm is quieter than the NF-F12 120mm fan at 1200rpm), so always refer to our dB(A) specifications rather than to RPM speeds only. In the different product lines, we use different designations for highlighting the fans’ speeds and noise levels:
    • standard line: HS-PWM versions are the highest speeds in this line, PWM and FLX versions are high to moderate speeds and ULN versions are the lowest speeds

    • redux: Speeds are designated in the product name numerically, e.g. NF-S12B redux-700 is 700rpm, NF-S12B redux-1200 is 1200rpm.


    • chromax: There is only one speed per fan version in the chromax line.


    • industrialPPC: Speeds are designated in the product name numerically, e.g. NF-F12 industrialPPC-2000 is 2000rpm, NF-F12 industrialPPC-3000 is 3000rpm.

  6. Accessories: Redux and industrialPPC line fans come with mounting screws only whereas the standard-line fans come with a rich bundle of accessories (different cables, adaptors, anti-vibration mounts, etc. , see individual specifications for details). The chromax line fans come with mounting screws and swappable anti-vibration pads in different colours.

  7. Performance and application-type considerations for 120mm fans (airflow vs static pressure): In the 120mm range, Noctua offers the NF-A12x25 that provides superior performance in all applications and models such as the NF-F12 and NF-S12A or NF-P12 redux and NF-S12B redux that are focused solutions for either airflow or pressure-demanding applications. See this guide for further explanations. Note that there is no distinction between airflow and pressure-focused models in all other sizes. Except for the NF-F12, NF-P12 and NF-S12 lines, all other Noctua fans are designed to provide optimal results in both types of applications. In particular, Noctua’s A-series models are universal solutions that are excellent both as case fans and on coolers and radiators.

  8. Popular choices and recommendations: Still undecided? Here’s a list of our most popular models of each size that have proven to work extremely well for the vast majority of users:
    • 140mm: NF-A14 PWM

    • 120mm: NF-A12x25 PWM

    • 92mm: NF-A9 PWM

    • 80mm: NF-A8 PWM

    • 60mm: NF-A6x25 PWM

    • 40mm: NF-A4x10 FLX

Still unsure which model to buy? If you have any further questions, please feel free to contact us at support@noctua. at.

Quiet Fans for your PC from be quiet!

HIGH-END

The most advanced technology, near-silent operation and superior cooling.

Silent Wings 4

PREMIUM

Quiet and reliable cooling – the perfect case fan in black or white.

Shadow Wings 2

ESSENTIAL

Outstanding reliability, cooling silence and excellent price/performance ratio.

Light Wings

Pure Wings 2

Series comparison

UNCOMPROMISING SILENCE AND PERFORMANCE

  • Optimized fan blades for maximum performance
  • Excellent performance to noise ratio
  • Unique 6-pole fan motor to reduce vibrations
  • Optimized heatsink and anti-vibration chassis mounts
  • Reliable high quality hydrodynamic bearing (up to 300,000 hours of operation)

Silent Wings Pro 4

120mm PWM
140mm PWM

Silent Wings 4

120mm
120mm PWM
120mm PWM Highspeed
140mm
140mm PWM
140mm PWM High Speed

Product line

Silent operation and reliable cooling

  • Quiet operation at low RPM (14. 7-15.9 dB(A))
  • Optimized blade design for better airflow
  • Anti-vibration fan mounts
  • Robust threaded plain bearing (80.000 MTBF)

Shadow Wings 2

120mm
120mm White
120mm PWM
120mm PWM White
140mm
140mm White
140mm PWM
140mm PWM White

Product line

Impressive illumination, efficient and quiet operation

  • Front and rear ARGB lights
  • Fan blades optimized for quiet operation
  • 9 fan blades for high air pressure, 7 blades for high airflow failure – 60.000 hours)
  • Available in black or white

Light Wings

120mm PWM
120mm PWM high speed
140mm PWM
140mm PWM high speed

Light Wings Triple Pack

120mm PWM Triple Pack
120mm PWM White Triple Pack
120mm PWM high-speed Triple Pack
120mm PWM high-speed White Triple Pack
140mm PWM Triple Pack
140mm PWM White Triple Pack
140mm PWM high-speed Triple Pack
140mm PWM high-speed White Triple Pack

Product line

Outstanding cooling reliability and silence

  • Excellent value for money
  • Very quiet operation (18. 2-20.2 dB(A) at maximum speed)
  • Unique optimized fan blade design
  • Nine fan blades optimized for quiet operation

    • 900 34 High quality threaded plain bearing (time to failure – 80.000)

Pure Wings 2

80mm
80mm PWM
92mm
92mm PWM
120mm
120mm PWM
120mm high speed
120mm PWM high speed
140mm
140mm PWM
140mm high speed
140mm PWM high speed

Product line

Best PC case cooling fans in 2023

When it comes to providing your PC case and components with sufficient airflow, you need the best case fans. There are many different case fans to choose from, all of which come in different sizes, noise levels, and airflow.

This is even more important if your case is filled with high-performance hardware such as GPUs and powerful CPUs, which generate much more heat . If these components are not properly cooled, your computer may increase the ambient temperature in your room and stop working efficiently. Also, the extra heat can shorten the life of some hardware. That’s why we prefer to use only the very best case fans.

If you’re looking for the best 80mm, 120mm, 140mm and even 200mm case fan, don’t worry, we’ve got you covered. Below is a list of the best case fans currently available. All have been tested for performance, efficiency, noise levels and airflow.

How to choose the best case fan?

Knowing all the key terms how to choose the best fan for your installation ?

You want to look at the following:

  • Know your needs and desires. Do a preliminary assessment of your needs and prioritize what your installation really needs. Do you have problems with a specific area or are you looking for a decent preventative ventilator?
  • Be sure to check your computer’s connector type. Be sure to check the available motherboard connectors before purchasing to avoid compatibility issues.
  • Measure dimensions. Refer to your case manual or manufacturer’s website to see the exact measurement and number of compatible fans.
  • Will noise be a problem? If you want a silent fan, consider choosing a fan with the least amount of noise. On the other hand, if noise isn’t an issue, chances are you’ll find one that isn’t as quiet but still performs well for less money.
  • How do you want to control your fan? Get a 4-pin fan if you want to control the fan speed on the fly with software. Otherwise, a 3-pin fan will suffice for most average users.

Best PC Chassis Fans – The Ultimate Choice

  1. Noctua NF-A14 is the best case fan for

    Noctua NF-A14 140mm case fan is a premium square case fan that combines high functionality and excellent noiselessness even at high RPMs.

    What we liked :

    • Very quiet
    • Very comfortable for extended use
    • Award Winning High Quality Case Fan
    • Includes anti-vibration mounts
    • Very durable and easy to clean

    What disappointed us :

    • Comparatively high price
    • No color variations

    The NF-A14 fan with a wide impeller and a rich set of proprietary technologies has proven to be a very efficient solution for use in cooling systems.

    Noctua fans do their job well. They really allow you to build a silent system, allowing you to cool all the internal components of the computer.

    The Noctua NF-A14 reviewed today can safely be called the leader in the class of 140mm fans. It keeps its characteristics intact: ultra-quiet, premium quality with outstanding performance.

    You might think it’s a bit pricey, but given the performance and good warranty support that lasts for six years, it’s reasonable.

  2. Thermaltake Riing Quad 120 – Best RGB Case Fan

    Thermaltake Riing Quad 120 fans are highly regarded as the best RGB fans on the market, and this is largely due to their bright 4-sided lighting, reasonable airflow and acoustic performance.

    What we like :

    • High quality
    • RGB Saturation
    • Neonmaker is a great program for controlling LEDs in fans
    • The controller works with 5 fans, while up to 16 controllers can work at the same time!

    What disappointed us :

    • Premium product comes with a premium price

    As you can tell from the name, these fans are 120mm in diameter and 25mm deep. These PWM fans have a CFM of 40.9 – one of the lowest on this list – but have a maximum noise level of 25dBA. The bearing type is hydrodynamic, and the addressable RGB lighting is something that can only be envied.

    Regarding purchase options, they are only available in triple pack for 120mm and 140mm options. Thermaltake also offers a 200mm variant that comes as a single unit.

    Whether you have a Thermaltake case or not, these Riing RGB fans will make your build stand out and even come with a mini fan controller to make your life easier – are great fans.

  3. Noctua NF-A8 PWM – Best 80mm Case Fan

    Noctua is the name you can trust when it comes to cooling solutions. With the Noctua NF-A8 case fan, you get the best performance in the 80mm category.

    What we like :

    • High CFM but low rpm
    • 4-pin connector for manual control
    • Very quiet; Supplied with low noise adapter (LNA)
    • Static fan

    What disappointed us :

    • Not recommended for large cases

    The

    NF-A8 features a sophisticated aerodynamic design and Advanced Acoustic Optimization (AAO), which is responsible for keeping noise levels low. In fact, it runs at a maximum of 2200 rpm (with a 4-pin PWM setting) and delivers a noise level of just 17.7 dBA – pretty impressive!

    Another contributing factor to this very quiet fan is the SSO2 (Self Stabilizing Oil Pressure Bearing Version 2) that Noctua has incorporated into this fan. They claim that it provides higher accuracy and better durability than conventional bearings.

    The 4 rubber vibration damper screws also contribute to the quietness of the profile. It comes with a 30cm 4-pin-Y sleeved extension cable if you want full control over your speeds. As a static fan, it is ideal for pushing airflow into hard-to-reach places.

    On the other hand, it also comes with a low noise adapter (LNA), but only use it if you are going to do manual adjustments and be aware that this will limit the fan speed to 1750 rpm.

  4. Cooler Master MegaFlow 200 – best case fan 200mm

    The

    Cooler Master MegaFlow 200 is one of the best fans in its category with a whopping 110 CFM to keep your system cool to a minimum.

    What we liked :

    • Very quiet
    • 4-pin controller
    • Available for 200 mm fan

    What disappointed us :

    • Requires third party software to disable backlight

    It is the most efficient and most affordable. You get a 200mm fan that delivers a whopping 110 CFM to keep your system cool around the clock. Plus, you won’t even need to rev to a thousand to get there, because it hits it at 700 rpm.

    Although this is the largest fan on our list, it is still fairly quiet (19dBA) and almost as quiet as the Noctua NF-A8 (17.7 dBA). Unfortunately, the color themes are quite limited, offering only black, red, and blue versions. In addition, Cooler Master has used environmentally friendly materials in the manufacture of this fan.

  5. Cooler Master Silencio FP 120 – the best silent case fan

    Cooler Master Silencio FP 120 PWM really lives up to its name: Silencio – silence even at high pressure.

    What we liked :

    • Very quiet; almost inaudible
    • Also great as a radiator fan
    • Great performance, great value, 5 year warranty

    What disappointed us :

    • Only available in black (without LEDs)

    At first you would mistake this for a standard 120mm fan, but if you look closely, this black fan case has a very distinct sickle-shaped blade. This is what makes the fan run silently at high pressure.

    In addition to using a dynamic bearing (LDB), it also uses Silent Driver IC technology, which provides smoother rotation and less torque impulse for minimal vibration and ultra-low noise.

    Although you can manually control the fan using third party software such as SpeedFan (thanks to the 4-pin connector), you don’t have to do this to reduce noise.

    Other factors that make this fan silent are the 4 metal screws and 4 anti-vibration rubber screws it comes with. Great quiet choice!

What to Check Before Buying a Case Fan

When shopping for the best PC fans, there are a few things to keep in mind so that they not only fit your system, but also effectively cool it.

Let’s move on to the most important things to consider when considering the best fans.

Static pressure or air flow fans?

The first thing you need to consider is whether you should use the High Static Pressure Fan or the High Airflow Fan . This is determined by the actual shape of the fan blades, so there are fans that are identical in make and model except that they have different blades.

You do not need to look at the data sheet to determine if the fan generates static pressure or air flow .

Just look at the fan and judge the distance between the fan blades. If the distance between the blades is small, this is static pressure. If the distance is large enough for your index finger to pass, it’s airflow.

Air flow fans

They work best if there are no restrictions in front of and behind the fan. For example, if you have a case that has a lot of open space, this should improve airflow efficiency.

Static pressure fans

Static pressure fans distribute air more evenly. This means they are not as powerful, but they can do the job well when there are obstructions such as components and heatsinks.

Airflow (CFM)

Fan airflow determines the amount of air the fan can pass through in a minute.

Generally, the higher the CFM rating, the better. However, when dealing with obstructions, static pressure can be more effective with less airflow.

The ideal CFM for a system is unique on a case-by-case basis as there are many factors to consider such as case size, design, amount of heat your processor is pumping out, the type of processor you are using, GPU fans and the number of case fans which you can install.

Fan size (mm)

Why do you need a big fan? It’s pretty simple: they move more air.

If you are not sure which size is right for your application, just check the specifications of your case. You can also visit the manufacturer’s website to see the dimensions and specifications of your case. And if all else fails, just take a measuring tape and measure the fan inside the case.

Below are some of the most common fan sizes and the distance between their threaded holes:

Fan size Distance between tapped holes
80 mm 72 mm
92 mm 83 mm
120 mm 105 mm
140 mm 124.5 mm
200 mm 154 mm

Fan speed (rpm)

Fan speed is measured in rpm (revolutions per minute). The higher the RPM, the more air is drawn into the system. RPMs directly affect the fan noise level, because the faster it spins, the more noise it makes.

This can also affect the size of the fan. While you can run a small fan at high speed, it will likely be louder. So you can use a larger fan at a slower speed instead.

To get the right RPM for your rig, simply set the fans to maximum speeds using third party software like SpeedFan : Increase the speed by 25% until the fan is too loud and the temperature is acceptably low.

Fan bearing type

Most fans today use three main types of bearings:

  • Plain bearing
  • Double ball bearing
  • Hydraulic and hydrodynamic bearing
Plain bearing

This type of bearing is the cheapest and is rated for 40,000 hours at 60°C. Such a bearing is maintenance-free and has a low noise level during operation. These types of fans are recommended to be installed vertically.

However, it should be noted that they tend to fail without any warning, despite the low noise level during operation.

Double ball bearing

Double ball bearing is more expensive than plain bearings but lasts longer up to 60000-75000 hours at 60°C.

Unlike plain bearings, they can be installed in any position and are also louder. This is why they are not recommended for home use, but are ideal for server farms.

Hydraulic and hydrodynamic bearing

These are premium class bearings. They are capable of operating up to 100,000-300,000 hours of use at 60°C.

Like the double ball bearing, they can be mounted in any position. They also have the lowest noise levels and are suitable for both server and home use, although they are intended for home use as they are a little more expensive.

Noise level (dBA)

Fan noise is measured in A-weighted decibels (dBA). A-weighted decibels is the volume of airborne sounds perceived by the human ear. Almost all manufacturers of case fans indicate the noise level.

Some factors that contribute to fan noise include:

  • Type of bearing used
  • Distance between blades and outer ring
  • How blades are designed
  • How fast the blades rotate

Noise levels typically range from 10 to 36 dBA. Either way, you’ll want a fan with minimal noise, for obvious reasons.

Here is the volume scale of these noises compared to normal sounds:

Sound level Noise at this sound level
10 dB Breathing
20 dB Rustling leaves/Whispers
30 dB Bedroom at night
40 dB Babbling brook
50 dB Normal conversation

Fan power connectors

There are 3 types of fan power connectors:

Connector types affect compatibility, so please check the motherboard connector type before purchasing.

Fan Aesthetics

Case fans can be used to enhance the look of your PC with color rings or RGB lighting. However, when it comes to fans, we tend to focus more on functionality as this will help extend the life of the entire system.

Airflow Direction

When installing fans in your case, you will need to select whether the fan will be a supply or exhaust fan. Ideally, you should make sure you have at least one input and one output, but don’t worry too much about the ratio.

Some terms to be familiar with:

  • Neutral air pressure – when the amount of incoming and outgoing air is equal. Technically, you will never achieve perfect balance, but you can get close.
  • Positive Air Pressure – Fans draw in more air than they blow out. This can cause air to escape through smaller openings, leading to dust deposits in unpredictable places.
  • Negative Air Pressure – Fans push more air out of the case, reducing cooling efficiency.

Obviously neutral air pressure should be aimed for and a good way to evaluate this is to measure the total CFM of all intake fans and the CFM of all exhaust fans.

You get positive air pressure if the intake CFM is higher and negative if the exhaust is higher. An equal CFM indicates that you have approximately neutral air pressure. Be aware that if the fan is blocked, it will not be able to reach the maximum CFM.

Case Fan FAQ

Which brand makes the best case fans?

One of the best options known to the community is Noctua. Praised for excellent product quality, top performance and leading support even at higher cost or non-traditional color schemes.

Noctua is well known and recommended by many in the PC community, so it’s a great choice if you don’t need anything flashy.

Which fans should I use to cool my PC?

When it comes to choosing fans for your PC, there are many options to choose from and make a decision.

Mac air m1 silver: Buy MacBook Air – Apple

Опубликовано: January 11, 2021 в 3:36 pm

Автор:

Категории: Miscellaneous

Apple MacBook Air (Silver) M1 Chip – Malik Electronics

  • Description
  • Reviews

New Apple MacBook Air with Apple M1 Chip (13-inch)

New Apple MacBook Pro with Apple M1 Chip (13-inch)
Price From: – Rs 92,900 From: – Rs 1,22,900
Ratings 4.8 out of 5 stars (9,029) 4.8 out of 5 stars (3,922)
Description MacBook Air. Extremely portable and amazingly fast with up to 18 hours of battery life. MacBook Pro. A true powerhouse with up to 20 hours of battery life for more demanding workflows.
Display 13.3-inch (diagonal) LED-backlit widescreen display 13.3-inch (diagonal) LED-backlit Retina display
Processor System on Chip (SoC) Apple M1 chip; 8-core CPU with 4 performance cores and 4 efficiency cores; Up to 8-core GPU; 16-core Neural Engine System on Chip (SoC) Apple M1 chip; 8-core CPU with 4 performance cores and 4 efficiency cores; Up to 8-core GPU; 16-core Neural Engine
Battery Up to 18 hours Apple TV app movie playback (varies by use) Up to 20 hours Apple TV app movie playback (varies by use)
Touch Bar and Touch ID Touch ID Touch Bar and Touch ID
Storage 256GB or 512GB SSD 256GB or 512GB SSD
Number of Thunderbolt Ports 2 2
Weight 2. 8 pounds (1.29 kg) 3.0 pounds (1.4 kg)

Technical Details

Apple MacBook Air 13-inch with Retina display (Latest Model)

Display 13.3-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1600 native resolution at 227 pixels per inch with support for millions of colors
Processor System on Chip (SoC) Apple M1 chip; 8-core CPU with 4 performance cores and 4 efficiency cores; 16-core Neural Engine
Graphics and Video Support Apple 8-core GPU
Charging and Expansion Two Thunderbolt / USB 4 ports with support for: Charging, DisplayPort, Thunderbolt 3 (up to 40 Gbps), USB 3.1 Gen 2 (up to 10 Gbps)
Wireless 802.11ax Wi-Fi 6 wireless networking; IEEE 802.11a/b/g/n/ac compatible. Bluetooth 5.0 wireless technology
In the Box 13-inch MacBook Air, 30W USB-C Power Adapter, USB-C Charge Cable (2 m)
Height 0. 16–0.63 inch (0.41–1.61 cm)
Width 11.97 inches (30.41 cm)
Depth 8.36 inches (21.24 cm)
Weight 2.8 pounds (1.25 kg)

Category: Laptop

Based on 0 reviews

0.0 overall

Apple MacBook Air 13-inch M1 chip 256GB Silver

Credit Cards

HDFC Credit Card