be quiet! SILENT WINGS 4 120mm PWM High-Speed Fan - Black

Name: be quiet! SILENT WINGS 4 120mm PWM High-Speed Fan - Black
Brand: be quiet!
SKU: kr5yhd2tuh
Availability: InStock

The Silent Wings 4 120mm PWM high-speed fan combines virtually inaudible silence with extremely hi...

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Product Information

Full details

The be quiet! Silent Wings 4 120mm PWM High-Speed fan is designed for users seeking both near-silent operation and high-performance cooling in demanding applications. It excels at moving significant amounts of air with minimal noise, though its high-speed nature might be overkill for systems prioritizing absolute silence over peak cooling. Key features include a Fluid Dynamic Bearing, PWM control for speed adjustment, and an optimized blade design for maximum airflow.

All features

Colour	Black
Model Part Number	BL094
Brand	be quiet!

Extended Product Information

FAQs

What is PWM and why is it important?

PWM (Pulse-Width Modulation) allows the fan's speed to be controlled dynamically. By sending rapid on/off pulses, the fan can adjust its speed based on temperature or user settings, balancing cooling performance with noise levels.

How long does the Fluid Dynamic Bearing (FDB) typically last?

The Fluid Dynamic Bearing is designed for longevity, with a Mean Time Between Failures (MTBF) of 300,000 hours. This ensures a long operational life for the fan under normal usage conditions.

Can I use this fan with a 3-pin fan header?

While the fan has a 4-pin connector, it can be connected to a 3-pin header. However, you will lose the PWM speed control functionality, and the fan will likely run at its maximum speed constantly.

What is the maximum noise level of this fan?

At its maximum rotational speed of 2500 RPM, the fan produces a noise level of 31.2 dB.

How do I determine the correct airflow direction?

Look for the arrows on the side of the fan frame. One arrow indicates the direction of rotation, and the other indicates the direction of airflow.

Is this fan suitable for a radiator?

Yes, with its high static pressure (3.96 mmH2O) and airflow, the Silent Wings 4 120mm PWM High-Speed fan is well-suited for use with PC radiators.

Troubleshooting

Fan not spinning

Verify the 4-pin PWM connector is securely seated in the fan header. Check motherboard BIOS settings to ensure the fan header is enabled and configured correctly. Test with a different fan header or fan.

Fan making unusual noise

Ensure no cables are obstructing the fan blades. Check that the fan is securely mounted and not vibrating against the case. If the noise persists and sounds like grinding, the bearing may be failing, and the fan may need replacement.

Fan speed not changing with load

Confirm that PWM functionality is enabled in the motherboard BIOS or fan control software. Ensure the fan is connected to a PWM-capable header (typically marked 'PWM'). Check the fan's connection and the software settings for any restrictions.

Reduced airflow performance

Clean dust buildup from the fan blades and surrounding components. Ensure there are no obstructions in the airflow path. Verify the fan is mounted in the correct orientation for the desired airflow direction.

Pros and Cons

Pros

Excellent airflow for demanding tasks
Remarkably quiet operation for its performance level
Durable Fluid Dynamic Bearing ensures longevity
PWM control offers flexibility in managing fan speed and noise
Optimized blade design for efficient cooling

Cons

May produce more noise than lower-speed fans when running at maximum RPM
High-speed operation might be unnecessary for basic computing tasks
Premium price point compared to standard case fans

Setup, Compatibility & Care

Setup:

Mounting: Secure the fan using the included screws. Ensure the fan is oriented correctly for desired airflow direction (check arrows on the fan housing).
Connection: Connect the 4-pin PWM connector to an available fan header on your motherboard or fan controller.
PWM Control: Ensure your motherboard BIOS or fan control software is configured to utilize PWM functionality for speed adjustments.

Compatibility:

Size: The 120mm form factor is standard for most PC cases, radiators, and CPU coolers.
Connector: Features a 4-pin PWM connector compatible with most modern motherboards.
Voltage: Operates on a standard 12V system, with a voltage range of 5V to 13.2V.

Care:

Cleaning: Periodically clean dust from the fan blades and frame using a soft brush or compressed air. Ensure the system is powered off and the fan is unplugged before cleaning.
Bearing: The Fluid Dynamic Bearing is sealed and requires no lubrication. Avoid disassembling the fan.
Avoid Physical Damage: Do not bend fan blades or apply excessive force.