Superior technology and cooling. The Silent Loop 3 420mm is a virtually inaudible and incredibly h...Superior technology and cooling. The Silent Loop 3 420mm is a virtually inaudible and incredibly high-performing All-in-One water cooling unit with state-of-the-art technology. It embodies German engineering and is associated with the be quiet! brand. The cooler features a highly engineered cooling block design with a powerful 3-chamber pump that significantly reduces turbulences and noise. It has a dampened and adjustable pump with a 6-pole motor and includes 3 Silent Wings 4 140mm PWM high-speed fans with radiator corners for virtually inaudible operation. The unit offers incredibly high cooling performance and an elegant premium design with discreet ARGB lighting. It also has an easy-to-access refill port, an included coolant bottle for a long lifespan, and flexible sleeved tubes with convenient mounting for easy handling. Product conception, design, and quality control are all done in Germany. The fan's mean time to failure (MTTF) is 300000 hours. Pump motor speed ranges from 1700 to 3500 RPM. Fan speed is up to 1900 RPM. Maximum air pressure is 2.36 mmH2O, and airflow is 133.2 m³/h (78.4 cfm). Noise level ranges from 19.4 dB (low speed) to 34.3 dB (high speed). It supports Intel LGA1851, LGA1150, LGA1151, LGA1155, LGA1200, LGA1700, Socket AM4, Socket AM5, Socket TR4, and Socket TR5. The fan diameter is 14 cm, and it is an All-in-one liquid cooler suitable for processors. The fan connector is 4-pin, and the illumination color is Multi LED with a 3-pin LED connector. It includes 3 fans. The base plate material is Copper, and the radiator material is Aluminum. The product color is Black. Fan voltage is 12V, and fan current is 0.3A. Weight is 2.01 kg. The tube length is 40 cm. The radiator dimensions are 2.7 cm height, 45.7 cm depth, and 14 cm width. The warranty period is 3 years. It is certified with CE, FCC, RoHS, UKCA, and WEEE. Packaging includes CPU brackets, a manual, screws, and a mounting kit. Thermal grease is also included.
This guide is for PC builders and enthusiasts looking to optimize their system's cooling with the be quiet! Silent Loop 3 420mm. This all-in-one liquid cooler provides exceptional cooling performance with incredibly quiet operation, thanks to its advanced German engineering. However, be aware that the 420mm radiator size requires a case with adequate space for installation.
All features
Colour
Black
Model Part Number
BW026
Brand
be quiet!
Extended Product Information
FAQs
How often should I refill the coolant?
The Silent Loop 3 is designed for a long lifespan, but it's recommended to check the coolant level every 1-2 years and refill as needed. The included refill bottle provides coolant for the product's lifespan.
What is the warranty period?
The be quiet! Silent Loop 3 - 420mm comes with a 3-year warranty.
What type of fans are included?
The cooler includes three Silent Wings 4 140mm PWM high-speed fans.
What is the pump motor speed?
The pump motor speed ranges from 1700 to 3500 RPM.
What is the maximum airflow of the fans?
The maximum airflow of the fans is 133.2 m³/h (78.4 cfm).
What CPU sockets are supported?
The Silent Loop 3 supports Intel LGA1851, LGA1150, LGA1151, LGA1155, LGA1200, LGA1700, and AMD Socket AM4, Socket AM5, Socket TR4, and Socket TR5.
Can I control the fan speeds?
Yes, the fans are PWM controlled, allowing you to adjust their speed through your motherboard's BIOS or system monitoring software.
Is thermal grease included?
Yes, thermal grease is included with the cooler.
Troubleshooting
Pump is making unusual noises.
Check for air bubbles in the system. If the noise persists, check the coolant level and refill if necessary. If the problem continues, contact customer support.
CPU temperatures are too high.
Ensure the pump is properly mounted and making good contact with the CPU. Check the fan speeds and make sure they are operating correctly. Verify that the radiator is getting sufficient airflow.
Fans are not spinning.
Check the fan connections to the motherboard. Make sure the fans are set to run at the desired speed in the BIOS or the system's monitoring software.
ARGB lighting is not working.
Check the 3-pin LED connector and make sure it is connected to a compatible ARGB header on your motherboard. Verify that the motherboard's RGB software is properly configured.
Pros and Cons
Pros
Exceptional cooling performance for high-end CPUs.
Extremely quiet operation, even under heavy loads.
Durable design with a refillable coolant system.
Easy to install with flexible tubes and a comprehensive mounting kit.
Stylish design with ARGB lighting.
Wide compatibility with various CPU sockets.
Cons
Requires a case that supports a 420mm radiator.
Installation can be more complex than air coolers.
May be overkill for lower-end CPUs.
ARGB lighting customization might be limited.
Price point is higher than some air coolers.
Setup, Compatibility & Care
Installation
Consult the included manual for detailed instructions specific to your CPU socket.
Mount the CPU bracket to the pump unit.
Install the radiator with the fans in your case, ensuring proper airflow.
Mount the pump onto your CPU.
Connect the fan and pump cables to your motherboard.
Refill the coolant (if necessary) using the refill port.
Compatibility
The Silent Loop 3 420mm supports the following sockets: