{"data":{"slug":"be-quiet-silent-loop-3-420","type":"cpu_cooler","brand":"be quiet!","name":"Silent Loop 3 420mm","aliases":["Silent Loop 3 420","Silent Loop 3 420mm Black","BW026"],"release_date":"2025-02","url":"https://arkivo.dev/cpu-coolers/be-quiet-silent-loop-3-420","specs":{"series":"Silent Loop 3","model_numbers":["BW026"],"gtins":["4260052192559"],"announce_date":"2025-02-11","status":"available","predecessor":null,"successor":null,"launch_price_usd":174.9,"launch_price_eur":174.9,"markets":["US","EU","GB"],"colors":["Black"],"manufacturer_url":"https://www.bequiet.com/en/watercooler/silent-loop-3/5395","spec_sheet_url":null,"manual_url":null,"eprel_registration_number":null,"warranty_years":3,"cpu_cooler":"aio_liquid","air_cooler_layout":null,"rated_tdp_w":null,"base_material":"nickel_plated_copper","thermal_paste":"included","sockets":["AM5","AM4","sTR5","sTR4","LGA1851","LGA1700","LGA1200","LGA1150","LGA1151","LGA1155"],"ram_clearance_mm":null,"offset_mounting":null,"heatpipe_count":null,"heatpipe_diameter_mm":null,"direct_contact_heatpipes":null,"radiator_mm":420,"radiator_dimensions_mm":{"length_mm":457,"width_mm":140,"thickness_mm":27},"radiator_material":"aluminium","tube_length_mm":400,"pump_speed_max_rpm":3500,"pump_connector":"pwm_4_pin","vrm_fan":false,"fans":[{"model":"Silent Wings 4 140mm PWM high-speed","size_mm":140,"count":3,"speed_min_rpm":null,"speed_max_rpm":1900,"airflow_cfm":78.4,"static_pressure_mmh2o":2.36,"noise_dba":29.3,"bearing":"fluid_dynamic","connector":"pwm_4_pin"}],"fan_count":3,"rgb_lighting":true,"lighting_standard":"argb_5v","display_type":"none","display_size_in":null,"display_resolution":null,"software_name":null,"usb_header_required":false,"cybenetics_theta_am5":"gold","cybenetics_theta_lga1851":"silver","measured_op_30dba_am5":11283,"measured_op_30dba_lga1851":14127,"measured_noise_max_dba":38,"measured_thermal_tests":[{"test_cpu":"AMD Ryzen 9 7900X","load":"Prime95 Small FFTs, full CPU load, PBO enabled","cpu_power_w":197.1,"fan_setting":"20 dB(A)","noise_dba":20,"cpu_temp_c":91.7,"temp_over_ambient_c":null},{"test_cpu":"AMD Ryzen 9 7900X","load":"Prime95 Small FFTs, full CPU load, PBO enabled","cpu_power_w":198.7,"fan_setting":"25 dB(A)","noise_dba":25,"cpu_temp_c":90.9,"temp_over_ambient_c":null},{"test_cpu":"AMD Ryzen 9 7900X","load":"Prime95 Small FFTs, full CPU load, PBO enabled","cpu_power_w":196.5,"fan_setting":"30 dB(A)","noise_dba":30,"cpu_temp_c":91.1,"temp_over_ambient_c":null},{"test_cpu":"AMD Ryzen 9 7900X","load":"Prime95 Small FFTs, full CPU load, PBO enabled","cpu_power_w":198.9,"fan_setting":"35 dB(A)","noise_dba":35,"cpu_temp_c":90.4,"temp_over_ambient_c":null},{"test_cpu":"AMD Ryzen 9 7900X","load":"Prime95 Small FFTs, full CPU load, PBO enabled","cpu_power_w":199.1,"fan_setting":"100%","noise_dba":38,"cpu_temp_c":89.5,"temp_over_ambient_c":null},{"test_cpu":"Intel Core Ultra 9 285K","load":"Prime95 Small FFTs, full CPU load, Intel default mode","cpu_power_w":299.6,"fan_setting":"20 dB(A)","noise_dba":20,"cpu_temp_c":92.2,"temp_over_ambient_c":null},{"test_cpu":"Intel Core Ultra 9 285K","load":"Prime95 Small FFTs, full CPU load, Intel default mode","cpu_power_w":300.5,"fan_setting":"25 dB(A)","noise_dba":25,"cpu_temp_c":90,"temp_over_ambient_c":null},{"test_cpu":"Intel Core Ultra 9 285K","load":"Prime95 Small FFTs, full CPU load, Intel default mode","cpu_power_w":299.4,"fan_setting":"30 dB(A)","noise_dba":30,"cpu_temp_c":88.8,"temp_over_ambient_c":null},{"test_cpu":"Intel Core Ultra 9 285K","load":"Prime95 Small FFTs, full CPU load, Intel default mode","cpu_power_w":298.3,"fan_setting":"35 dB(A)","noise_dba":35,"cpu_temp_c":86.8,"temp_over_ambient_c":null},{"test_cpu":"Intel Core Ultra 9 285K","load":"Prime95 Small FFTs, full CPU load, Intel default mode","cpu_power_w":298.5,"fan_setting":"100%","noise_dba":38,"cpu_temp_c":78.6,"temp_over_ambient_c":null},{"test_cpu":"Intel Core i9-13900K","load":"Cinebench, 253 W power limit","cpu_power_w":null,"fan_setting":"600 rpm","noise_dba":30.2,"cpu_temp_c":89.4,"temp_over_ambient_c":null},{"test_cpu":"Intel Core i9-13900K","load":"Cinebench, 253 W power limit","cpu_power_w":null,"fan_setting":"1200 rpm","noise_dba":34.3,"cpu_temp_c":83.5,"temp_over_ambient_c":null},{"test_cpu":"Intel Core i9-13900K","load":"Cinebench, 253 W power limit","cpu_power_w":null,"fan_setting":"1900 rpm (max)","noise_dba":39.4,"cpu_temp_c":81.7,"temp_over_ambient_c":null},{"test_cpu":"Intel Core i9-13900K","load":"Cinebench, 153 W power limit","cpu_power_w":null,"fan_setting":"600 rpm","noise_dba":30.2,"cpu_temp_c":63.4,"temp_over_ambient_c":null},{"test_cpu":"Intel Core i9-13900K","load":"Cinebench, 153 W power limit","cpu_power_w":null,"fan_setting":"1200 rpm","noise_dba":34.3,"cpu_temp_c":61,"temp_over_ambient_c":null},{"test_cpu":"Intel Core i9-13900K","load":"Cinebench, 153 W power limit","cpu_power_w":null,"fan_setting":"1900 rpm (max)","noise_dba":39.4,"cpu_temp_c":60.4,"temp_over_ambient_c":null}],"dimensions_mm":null,"heatsink_dimensions_mm":null,"weight_g":2010,"heatsink_weight_g":null,"in_the_box":["1x Intel Backplate","2x Intel Mounting Brackets","4x Intel Backplate Screws","4x Locking Washers / O-Rings","4x Intel Spacer Nuts","4x Mounting Brackets Fastening Screws","1x AMD TR4/TR5 Mounting Bracket","1x set of AMD AM4/AM5 Mounting Brackets","4x AMD Screws","4x AMD Spacers","12x Radiator Screws","12x Fan Screws","1x Thermal Paste Tube","3x Zip Ties","1x Refill Coolant Bottle 100ml","1x 3-way PWM Splitter Cable","1x User Manual","1x Safety Paper"]},"variants":[],"sources":[{"url":"https://www.bequiet.com/en/watercooler/silent-loop-3/5395","kind":"manufacturer_page","accessed":"2026-10-15","fields":["manufacturer_url"],"notes":{"manufacturer_url":"The URL is the Silent Loop 3 series page from the job's selection step and from a search result. The page was not opened because bequiet.com is blocked. No value rests on it."}},{"url":"https://aphnetworks.com/reviews/be-quiet-silent-loop-3-420mm","kind":"review_site","accessed":"2026-10-15","fields":["cpu_cooler","colors","base_material","sockets","radiator_mm","radiator_dimensions_mm","radiator_material","tube_length_mm","pump_speed_max_rpm","pump_connector","fans","lighting_standard","thermal_paste","weight_g","warranty_years"],"notes":{"cpu_cooler":"Review of the 420mm sealed liquid cooler with pump block, tubes, radiator and three fans.","colors":"General data, Color option: Black.","base_material":"APH prints the maker's spec table as read on the maker's website. Base material / finish: copper / nickel plating.","sockets":"Maker table: Intel 1851 / 1700 / 1200 / 1150 / 1151 / 1155 and AMD AM5 / AM4 / TR5 / TR4. The Threadripper bracket is in the box. LGA1156 is not named, so it is not stored. TR5 and TR4 are stored as sTR5 and sTR4, the names AMD uses for those sockets.","radiator_mm":"Three 140 mm fans on a 457 mm radiator, so the size class is 420.","radiator_dimensions_mm":"Radiator specifications, Dimensions (H x W x D): 457 x 140 x 27 mm, without fans. The maker's table also prints 475 x 140 x 52 mm for the radiator with fans. Length runs along the fans. Thickness is 27 mm.","radiator_material":"Radiator material / finish: aluminum / black spray painted.","tube_length_mm":"Tube length (mm): 400. APH describes the tubes as rubber with a braided sleeve and measures 400 mm. Tech4Gamers measured 410 mm.","pump_speed_max_rpm":"Pump speed (rpm): 3500, adjustable 1700 - 3500.","pump_connector":"Pump connector: 4-pin PWM.","fans":"Fan model Silent Wings 4 140mm PWM, 140 x 140 x 25 mm, 1900 rpm at 100% PWM, 78.4 CFM, 2.36 mm H2O, FDB, 6-pole motor, 4-pin PWM, 3 fans. The maker's table prints the model without high-speed. The figures match the Silent Wings 4 140mm PWM high-speed fan (BL097). The plain Silent Wings 4 140mm PWM fan spins to 1170 rpm only. The maker's cooler noise row (34.3 dB(A) at 100% rpm, for the whole cooler) is not a per-fan value. The per-fan figure is in the Komputronik entry.","lighting_standard":"Lighting connector: 3 Pin 5V Addressable.","thermal_paste":"Accessories, Thermal grease: Included. Tech4Gamers lists a separate paste tube.","weight_g":"Total weight 2.01 kg. Cybenetics lists 2010 g, LDLC 2.01 kg and Tech4Gamers 2010 g. Voelkner's marketplace row of 1.4 kg is not used.","warranty_years":"Service, Warranty (Years): 3."}},{"url":"https://aphnetworks.com/reviews/be-quiet-silent-loop-3-420mm/2","kind":"review_site","accessed":"2026-10-15","fields":["base_material","pump_connector","fans"],"notes":{"base_material":"The base contacting the processor is copper with nickel plating.","pump_connector":"The pump runs at 1700 to 3500 RPM and is powered and controlled through a 4-pin PWM header.","fans":"Three Silent Wings 4 140mm PWM fans, seven blades, six-pole motor, fluid dynamic bearings, 2.36 mm H2O and 78.4 CFM. A 3-in-1 Y-adapter joins the fans on one header."}},{"url":"https://www.kitguru.net/components/cooling/james-dawson/be-quiet-silent-loop-3-420-aio-cpu-cooler-review/","kind":"review_site","accessed":"2026-10-15","fields":["sockets","display_type","vrm_fan","lighting_standard","fans"],"notes":{"sockets":"Spec list: Intel 1851/1700/1200/115X, AMD AM5 / AM4 / TR5 / TR4. 115X is stored as LGA1150, LGA1151 and LGA1155, which the maker's own table names one by one.","display_type":"Spec list row LCD Screen: N/A.","vrm_fan":"Spec list row VRM Fan: N/A. No review or retailer describes a fan on the pump block.","lighting_standard":"Spec list row Pump LED: 3-pin 5v ARGB. Fan LED: N/A.","fans":"Spec list: fan 140 x 140 x 25 mm, 1900 RPM max, 78.4 CFM, 2.36 mmH2O, FDB, 4-pin PWM."}},{"url":"https://www.club386.com/?p=97819","kind":"review_site","accessed":"2026-10-15","fields":["announce_date","release_date","launch_price_usd","launch_price_eur","markets","warranty_years","rgb_lighting","measured_thermal_tests"],"notes":{"announce_date":"Club386 published its review on 11 Feb 2025, the same day as the Guru3D launch report.","release_date":"Club386 states the series debuts on February 25, 2025. Guru3D and FunkyKit state the same sale date.","launch_price_usd":"MSRP table row Silent Loop 3 420: $174.90 / EUR 174.90. US prices exclude tax.","launch_price_eur":"MSRP table row Silent Loop 3 420: EUR 174.90. The FunkyKit press text gives the same figure.","markets":"The review lists US dollar, euro and pound prices (GBP 124.99 in the press text).","warranty_years":"Three-year warranty for every size.","rgb_lighting":"ARGB lighting on the pump block, no RGB on the fans.","measured_thermal_tests":"Club386 (Damien Mason, 2025-02-11). Intel Core i9-13900K, Cinebench loads at 253 W and 153 W power modes, fans fixed at 600, 1200 and 1900 rpm (maximum). The temperatures are the table values per rpm, which the How We Test page says are CPU-Z averages. Noise is from a Tadeto sound level meter. The 600 rpm noise is published as <30.2 and is stored as 30.2. The ambient temperature, bench or case, paste, meter distance and the pump setting are not stated. The noise table has one column per rpm, so the same noise applies to the 253 W and 153 W rows. The review prints the rows without a Cinebench version in the temperature table."}},{"url":"https://www.club386.com/how-we-test/","kind":"review_site","accessed":"2026-10-15","fields":["measured_thermal_tests"],"notes":{"measured_thermal_tests":"Cooling section: Core i9-13900K reference CPU, CPU-Z average temperatures, Tadeto sound level meter, Cinebench at 600 rpm, 1,200 rpm and max rpm across 153 W and 253 W modes. Ambient is only said to be kept in line with earlier reviews."}},{"url":"https://tech4gamers.com/be-quiet-silent-loop-3-420-review/","kind":"review_site","accessed":"2026-10-15","fields":["in_the_box","thermal_paste","usb_header_required","rgb_lighting","lighting_standard","base_material","tube_length_mm","launch_price_usd","launch_price_eur","weight_g","sockets"],"notes":{"in_the_box":"Packing and unboxing list copied in full: 18 lines, from the Intel backplate to the safety paper.","thermal_paste":"Box list names 1x Thermal Paste Tube.","usb_header_required":"The installation steps use only the pump PWM header, the fan PWM header and the 5 V ARGB header. No USB cable or software is mentioned.","rgb_lighting":"A-RGB lighting on the pump housing, subtle, synced with motherboard RGB software.","lighting_standard":"Standard 5V, 3-Pin A-RGB connector on the pump housing.","base_material":"Base on this cooler is nickel-plated copper.","tube_length_mm":"Measured 410 mm. The maker's table says 400 mm, which is stored.","launch_price_usd":"MSRP of USD 174.90 and EUR 174.90.","launch_price_eur":"MSRP of EUR 174.90.","weight_g":"Key specs, Net Weight: 2010 gm.","sockets":"Compatible with Intel LGA 115x/1200/1700/1851 and AMD AM4/AM5/TR5/sTRX4/TR4. sTRX4 is not in the maker's table and is not stored."}},{"url":"https://www.cybenetics.com/evaluations/coolers/84/","kind":"measurement","accessed":"2026-10-15","fields":["cybenetics_theta_am5","cybenetics_theta_lga1851","measured_op_30dba_am5","measured_op_30dba_lga1851","measured_noise_max_dba","measured_thermal_tests"],"notes":{"cybenetics_theta_am5":"Report BQCLR00084 for the same model, tested Feb 11 to Feb 25, 2025 with the Default mount. THETA Gold, AIO, rated at 30 dB(A). The report was evaluated under protocol revision 1.8, before revision 2.0. Its technical specifications row names Silent Wings 4 120mm High-Speed fans, which is a typo, since the maker's fans are 140 mm and the report shows 1.9k rpm.","cybenetics_theta_lga1851":"THETA Silver, AIO, rated at 30 dB(A) on a Core Ultra 9 285K with the Default mount.","measured_op_30dba_am5":"Overall Performance 11,283 at 30 dB(A) on a Ryzen 9 7900X (PBO enabled).","measured_op_30dba_lga1851":"Overall Performance 14,127 at 30 dB(A) on a Core Ultra 9 285K (Intel default mode).","measured_noise_max_dba":"38.0 dB(A) at the 100% fan setting (1886, 1880 and 1919 rpm). Hemi-anechoic chamber with a 6 dB(A) noise floor, Bruel & Kjaer 2270 G4 sound analyser, microphone 1 m from the cooler. The protocol keeps the AIO pump at full speed and says the pump noise is not part of the normalized fan-noise levels.","measured_thermal_tests":"Cybenetics Cooling Solutions Test Protocol, revision 1.8 procedure. Ambient held at 25 C plus or minus 0.5 C in a climate chamber, open test bench (Cooler Master Test Bench for AM5 with an ASUS TUF Gaming X670E-Plus, DimasTech Bench for LGA1851 with an ASRock Z890 Taichi), Prime95 Small FFTs, pump at full speed in every row. Fans were set to reach each normalized noise level at 1 m, or 100%. CPU power is measured at the EPS connectors. The protocol states Arctic MX-4 paste for all tests. Mount: Default. The report publishes no temperature above ambient. The AM5 rows use the Ryzen 9 7900X with PBO enabled and the LGA1851 rows the Core Ultra 9 285K in Intel default mode. The Intel 35 dB(A) row (86.8 C) and the 100% row (78.6 C) are 8 C apart, while the fans only differ by about 200 rpm. The values are stored as printed."}},{"url":"https://www.guru3d.com/story/be-quiet-launches-silent-loop-3-series-aio-liquid-cpu-coolers/","kind":"press","accessed":"2026-10-15","fields":["announce_date","release_date","launch_price_usd","warranty_years","rgb_lighting","series"],"notes":{"announce_date":"Published 2025-02-11 by Hilbert Hagedoorn.","release_date":"Scheduled for release on February 25, 2025.","launch_price_usd":"$174.90 for 420 mm, $164.90 for 360 mm and $139.90 for 240 mm.","warranty_years":"A three-year warranty is included.","rgb_lighting":"The cooling block includes addressable RGB lighting.","series":"The Silent Loop 3 Series comes in 240, 360 and 420 mm."}},{"url":"https://www.funkykit.com/?p=211166","kind":"press","accessed":"2026-10-15","fields":["announce_date","release_date","launch_price_usd","launch_price_eur","markets","series"],"notes":{"announce_date":"FunkyKit repost of the be quiet! press release, dated 12 February 2025.","release_date":"Available for sale from February 25.","launch_price_usd":"Suggested retail price $174.90 for the 420mm.","launch_price_eur":"EUR 174.90 for the 420mm.","markets":"The press release gives $, EUR and GBP prices (GBP 124.99 for the 420mm).","series":"Press release name: Silent Loop 3, a series of 240, 360 and 420 mm all-in-one coolers."}},{"url":"https://www.voelkner.de/products/13093242/Be-Quiet-Silent-Loop-3-420Mm.html","kind":"retailer","accessed":"2026-10-15","fields":["model_numbers","gtins","colors","sockets","lighting_standard"],"notes":{"model_numbers":"Hersteller-Nr. BW026.","gtins":"EAN 4260052192559. A marketplace listing, but the number agrees with the maker's article BW026 on every page found.","colors":"Farbe: schwarz.","sockets":"Suitable sockets list 1150, 1151, 1155, 1700, 1851, AM4, TR4, sTR5, sTRX4, 1200 and AM5.","lighting_standard":"LED lighting: addressable RGB header."}},{"url":"https://www.ldlc.com/en/product/PB00672490.html","kind":"retailer","accessed":"2026-10-15","fields":["model_numbers","status","weight_g","sockets","display_type","tube_length_mm"],"notes":{"model_numbers":"Model BW026.","status":"LDLC France listed the 420mm model as in stock at 146.95 EUR on the access date.","weight_g":"Weight 2.01 kg.","sockets":"Processor support: AMD AM4, AM5, sTR4, sTR5 and Intel 1150, 1151, 1155, 1200, 1700, 1851.","display_type":"Integrated display: No.","tube_length_mm":"Highlights: flexible 400 mm jacketed hoses."}},{"url":"https://www.komputronik.pl/product/771125/be-quiet-silent-wings-4-140mm-pwm-high-speed.html","kind":"retailer","accessed":"2026-10-15","fields":["fans"],"notes":{"fans":"Retail copy of the data for the Silent Wings 4 140mm PWM high-speed fan (BL097): 1900 rpm, 78.4 CFM (133.2 m3/h) and a maximum noise of 29.3 dB at full speed. 29.3 dB(A) is stored as the per-fan noise because the maker's cooler table prints 34.3 dB(A) at 100% rpm for the whole cooler with no per-fan label. Three fans at 29.3 dB(A) add up to about 34 dB(A), which fits. The maker's fan data sheet itself is on bequiet.com and was not opened."}}],"fields_filled":36,"updated":"2026-10-15"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}