There are only a few white fans with ARGB. Still, BeQuiet’s Light Wings models have some rather unique features as this rare commodity. That’s true visually as well. But they also have high performance or airflow to noise ratio. For our tests this time, out of the two options, we chose the high-speed design, which has its “own” blade geometry. But it also handles very low speeds to boot.
Results: Frequency response of sound with a hexagonal grill
Measurements are performed in the TrueRTA application, which records sound in a range of 240 frequencies in the recorded range of 20–20,000 Hz. For the possibility of comparison across articles, we export the dominant frequency from the low (20–200 Hz), medium (201–2,000 Hz) and high (2,001–20,000 Hz) range to standard bar graphs.
However, for an even more detailed analysis of the sound expression, it is important to perceive the overall shape of the graph and the intensity of all frequencies/tones. If you don’t understand something in the graphs or tables below, you’ll find the answers to all your questions in this article. It explains how to read the measured data below correctly.
The sound of the 120 and 140 mm fans for the most part operates in the 70–700 Hz band. The bearings and motor operate between 1000 and 2500 Hz. Higher frequencies can be amplified by grilles or plastic filters (typically with hissing). Ignore the frequencies above 7000 Hz, these reflect electromagnetic noise from the measurement chain. This (electromagnetic noise) partially interferes with frequencies below 70 Hz as well, although there is still aerodynamic noise at these frequencies.
| Fan | Dominant sound freq. and noise level, hexagonal grille@33 dBA | NF-F12 PWM | NF-A15 PWM | ||||
| Low range | Mid range | High range | |||||
| Frequency [Hz] | Noise level [dBu] | Frequency [Hz] | Noise level [dBu] | Frequency [Hz] | Noise level [dBu] | ||
| BeQuiet! Light Wings White (BL101) | 50,4 | -81,7 | 369,7 | -83,0 | 19330,5 | -90,6 | |
| Scythe Kaze Flex II 120 | 50,4 | -80,6 | 369,7 | -82,6 | 19330,5 | -90,6 | |
| Valkyrie X12 | 50,4 | -80,7 | 232,9 | -81,2 | 19330,5 | -90,7 | |
| Fractal Design Silent R3 140 mm | 73,4 | -78,3 | 293,4 | -81,4 | 19330,5 | -90,7 | |
| Arctic P12 PWM PST A-RGB | 50,4 | -79,9 | 329,4 | -73,8 | 19330,5 | -90,8 | |
| Scythe Kaze Flex II 120 Slim | 50,4 | -80,9 | 359,2 | -80,0 | 19330,5 | -90,9 | |
| Seasonic MagFlow 1225 PWM | N/A | N/A | N/A | N/A | N/A | N/A | |
| Arctic P12 PWM PST | 77,7 | -72,1 | 391,7 | -76,8 | 19330,5 | -90,9 | |
| Cooler Master Mobius 120 OC | 41,8 | -74,4 | 1107,9 | -74,8 | 19330,5 | -90,7 | |
| Corsair AF120 RGB Elite | 50,4 | -69,6 | 339,0 | -73,3 | 19330,5 | -90,8 | |
| Enermax SquA RGB White | 123,4 | -82,4 | 369,7 | -74,5 | 19330,5 | -90,8 | |
| Endorfy Fluctus 140 PWM | 89,8 | -78,6 | 359,2 | -75,5 | 18780,2 | -91,0 | |
| Endorfy Fluctus 140 PWM ARGB | 89,8 | -79,6 | 369,7 | -76,3 | 19330,5 | -91,0 | |
| Arctic P12 Slim PWM PST | 100,8 | -84,3 | 369,7 | -74,2 | 18780,2 | -90,7 | |
| BeQuiet! Silent Wings Pro 4 (BL099) | 44,9 | -75,7 | 320,0 | -77,7 | 19330,5 | -90,7 | |
| Fractal Design Prisma AL-14 PWM | N/A | N/A | N/A | N/A | N/A | N/A | |
| Gigabyte Aorus 140 ARGB | 58,2 | -81,0 | 380,5 | -78,5 | 19897,0 | -90,7 | |
| BeQuiet! Light Wings (BL075) | 100,8 | -80,3 | 380,5 | -80,0 | 19897,0 | -90,7 | |
| Fractal Design Aspect 14 RGB PWM | 63,5 | -83,1 | 391,7 | -75,2 | 19330,5 | -90,7 | |
| DeepCool FK120 | N/A | N/A | N/A | N/A | N/A | N/A | |
| Asus TUF Gaming TF120 | 67,3 | -86,0 | 349,0 | -76,6 | 18780,2 | -90,8 | |
| BeQuiet! Light Wings (BL072) | 89,8 | -84,0 | 349,0 | -77,8 | 19330,5 | -90,8 | |
| DeepCool FC120 | 195,8 | -72,9 | 201,6 | -82,1 | 19330,5 | -91,0 | |
| Nidec Servo Gentle Typhoon D1225C (2150/12) | 50,4 | -78,9 | 369,7 | -86,1 | 19897,0 | -90,7 | |
| BeQuiet! Shadow Wings 2 (BL085) | 50,4 | -80,3 | 349,0 | -75,7 | 19330,5 | -90,7 | |
| Noctua NF-A12x25 PWM | 50,4 | -81,2 | 369,7 | -81,0 | 18780,2 | -90,8 | |
| Corsair AF120 Elite (black) | 49,0 | -80,0 | 339,0 | -78,2 | 19330,5 | -90,8 | |
| Cooler Master MasterFan SF120M | 41,8 | -72,3 | 380,5 | -83,1 | 4305,4 | -90,7 | |
| Akasa Alucia SC12 | 41,8 | -80,9 | 369,7 | -80,6 | 19897,0 | -90,9 | |
| BeQuiet! Silent Wings Pro 4 (BL098) | 47,6 | -75,2 | 329,4 | -74,9 | 19330,5 | -90,8 | |
| Thermalright X-Silent 120 | 50,4 | -77,7 | 339 | -76,0 | 18780,2 | -90,9 | |
| Fractal Design Aspect 12 RGB PWM | 59,9 | -78,7 | 349,0 | -69,8 | 19330,5 | -90,7 | |
| BeQuiet! Silent Wings 3 (BL066) | 49,0 | 79,3 | 329,4 | 78,9 | 19897,0 | -90,8 | |
| Gelid Zodiac | 50,4 | -81,0 | 339,0 | -78,7 | 19330,5 | -90,7 | |
| Fractal Design Dynamic X2 GP-12 PWM | 38,9 | -75,4 | 339,0 | -79,5 | 18780,243 | -90,9 | |
| BeQuiet! Pure Wings 2 (BL039) | 47,6 | -79,7 | 380,5 | -81,2 | 19330,5 | -90,9 | |
| Gigabyte Aorus 120 ARGB | 146,7 | -82,0 | 369,7 | -82,0 | 19330,5 | -90,9 | |
| Arctic BioniX P120 A-RGB | 169,5 | -84,7 | 329,4 | -70,5 | 19330,5 | -90,8 | |
| Akasa OTTO SF12 | N/A | N/A | N/A | N/A | N/A | N/A | |
| Cooler Master SickleFlow 120 ARGB | 47,6 | -82,0 | 1076,3 | -81,9 | 18780,2 | -90,9 | |
| Alphacool SL-15 PWM | N/A | N/A | N/A | N/A | N/A | N/A | |
| Arctic BioniX F120 | 169,5 | -84,7 | 329,4 | -70,5 | 19330,5 | -90,8 | |
| SilverStone SST-AP123 | SilverStone SST-AP123 | 58,2 | -80,8 | 302,0 | -77,3 | 19897,0 | -90,8 |
| Noctua NF-P12 redux-1700 PWM | 100,8 | -81,6 | 329,4 | -69,8 | 19897,0 | -90,9 | |
| SilentiumPC Fluctus 120 PWM | 100,8 | -82,7 | 369,7 | -79,9 | 19330,5 | -90,8 | |
| MSI MEG Silent Gale P12 | 100,8 | -81,2 | 369,7 | -80,3 | 19330,5 | -91,0 | |
| Asus ROG Strix XF120 | 38,9 | -79,7 | 349,0 | -72,4 | 19897,0 | -90,9 | |
| Akasa Vegas X7 | 100,8 | -85,3 | 359,2 | -80,3 | 19330,5 | -90,9 | |
| Reeven Coldwing 12 | 92,4 | -79,8 | 369,7 | -79,7 | 19897,0 | -90,9 | |
| Reeven Kiran | 97,9 | -84,4 | 391,7 | -77,8 | 19897,0 | -90,8 | |
| SilentiumPC Sigma Pro 120 PWM | N/A | N/A | N/A | N/A | N/A | N/A | |
| SilentiumPC Sigma Pro Corona RGB 120 | 92,4 | -83,0 | 369,7 | -77,9 | 18780,2 | -90,8 | |
| SilverStone SST-AP121 | 113,1 | -80,9 | 246,8 | -84,0 | 19330,5 | -90,9 | |
| SilverStone SST-FQ121 | 38,9 | -76,9 | 1522,2 | -81,7 | 18780,2 | -90,9 | |
| Xigmatek XLF-F1256 | 63,5 | -83,3 | 380,5 | -78,8 | 19897,0 | -90,9 |
| Fan | Dominant sound freq. and noise level, hexagonal grille@39 dBA | NF-F12 PWM | NF-A15 PWM | ||||
| Low range | Mid range | High range | |||||
| Frequency [Hz] | Noise level [dBu] | Frequency [Hz] | Noise level [dBu] | Frequency [Hz] | Noise level [dBu] | ||
| BeQuiet! Light Wings White (BL101) | 151,0 | -80,5 | 339,0 | -68,8 | 19330,5 | -90,7 | |
| Scythe Kaze Flex II 120 | 50,4 | -79,8 | 369,7 | -73,4 | 19330,5 | -90,8 | |
| Valkyrie X12 | 160,0 | -77,3 | 320,0 | -70,4 | 19897,0 | -90,7 | |
| Fractal Design Silent R3 140 mm | 89,8 | -72,9 | 359,2 | -71,0 | 18245,6 | -91,0 | |
| Arctic P12 PWM PST A-RGB | 89,8 | -77,2 | 369,7 | -74,7 | 19330,5 | -90,8 | |
| Scythe Kaze Flex II 120 Slim | 119,9 | -79,9 | 479,5 | -72,9 | 19897,0 | -90,8 | |
| Seasonic MagFlow 1225 PWM | 123,4 | -77,7 | 380,5 | -72,5 | 1015,9 | -77,4 | |
| Arctic P12 PWM PST | 103,7 | -66,5 | 415,0 | -67,8 | 19330,5 | -91,0 | |
| Cooler Master Mobius 120 OC | 55,0 | -78,9 | 369,7 | -74,7 | 18780,2 | -90,7 | |
| Corsair AF120 RGB Elite | 146,7 | -71,6 | 339,0 | -72,7 | 19330,5 | -90,8 | |
| Enermax SquA RGB White | 119,9 | -78,9 | 369,7 | -68,4 | 19330,5 | -90,8 | |
| Endorfy Fluctus 140 PWM | 119,9 | -77,2 | 380,5 | -72,1 | 18245,6 | -91,0 | |
| Endorfy Fluctus 140 PWM ARGB | 123,4 | -75,6 | 391,7 | -70,4 | 19330,5 | -90,8 | |
| Arctic P12 Slim PWM PST | 89,8 | -81,7 | 380,5 | -67,4 | 18780,2 | -90,7 | |
| BeQuiet! Silent Wings Pro 4 (BL099) | 103,7 | -76,8 | 415,0 | -69,5 | 2347,5 | -90,6 | |
| Fractal Design Prisma AL-14 PWM | 130,7 | -71,5 | 380,5 | -67,5 | 19330,5 | -90,7 | |
| Gigabyte Aorus 140 ARGB | 58,2 | -82,6 | 359,2 | -68,5 | 19897,0 | -90,8 | |
| BeQuiet! Light Wings (BL075) | 130,7 | -79,9 | 452,5 | -74,7 | 19330,5 | -91,0 | |
| Fractal Design Aspect 14 RGB PWM | 47,6 | -71,2 | 427,1 | -72,4 | 19330,5 | -90,9 | |
| DeepCool FK120 | 130,7 | -76,5 | 293,4 | -73,4 | 18780,2 | -91,1 | |
| Asus TUF Gaming TF120 | 50,4 | -81,1 | 349,0 | -67,8 | 19330,5 | -90,9 | |
| BeQuiet! Light Wings (BL072) | 130,7 | -78,6 | 697,9 | -72,4 | 19330,5 | -90,9 | |
| DeepCool FC120 | 190,3 | -75,8 | 570,2 | -74,8 | 19330,5 | -90,7 | |
| Nidec Servo Gentle Typhoon D1225C (2150/12) | 151,0 | -72,5 | 302,0 | -64,7 | 18780,2 | -90,9 | |
| BeQuiet! Shadow Wings 2 (BL085) | 71,3 | -85,6 | 339,0 | -72,8 | 19330,5 | -90,8 | |
| Noctua NF-A12x25 PWM | 20,3 | -78,4 | 369,7 | -72,3 | 19330,5 | -90,9 | |
| Corsair AF120 Elite (black) | 138,5 | -73,2 | 369,7 | -73,5 | 19897,0 | -90,8 | |
| Cooler Master MasterFan SF120M | 95,1 | -79,1 | 380,5 | -72,7 | 4305,4 | -89,6 | |
| Akasa Alucia SC12 | 50,4 | -80,5 | 369,7 | -72,6 | 19897,0 | -90,9 | |
| BeQuiet! Silent Wings Pro 4 (BL098) | 155,4 | -78,6 | 339,0 | -71,3 | 2712,2 | -87,9 | |
| Thermalright X-Silent | 89,8 | -77,8 | 359,2 | -68,8 | 18780,2 | -91,0 | |
| Fractal Design Aspect 12 RGB PWM | 50,4 | -82,7 | 380,5 | -68,7 | 19330,5 | -90,8 | |
| BeQuiet! Silent Wings 3 (BL066) | BeQuiet! Silent Wings 3 (BL066) | 58,2 | -78,5 | 339,0 | -73,2 | 18780,2 | -90,9 |
| Gelid Zodiac | 50,4 | -80,5 | 380,5 | -73,2 | 19330,5 | -91,0 | |
| Fractal Design Dynamic X2 GP-12 PWM | 50,4 | -80,4 | 320,0 | -65,3 | 19330,5 | -90,8 | |
| BeQuiet! Pure Wings 2 (BL039) | 59,9 | -79,0 | 369,7 | -73,3 | 18780,2 | -90,8 | |
| Gigabyte Aorus 120 ARGB | 138,5 | -81,5 | 369,7 | -73,2 | 18780,2 | -90,9 | |
| Arctic BioniX P120 A-RGB | 151,0 | -82,0 | 219,8 | -62,2 | 19330,5 | -90,9 | |
| Akasa OTTO SF12 | N/A | N/A | N/A | N/A | N/A | N/A | |
| Cooler Master SickleFlow 120 ARGB | 130,7 | -81,8 | 369,7 | -75,4 | 2152,7 | -90,4 | |
| Alphacool SL-15 PWM | 146,7 | -76,8 | 369,7 | -73,2 | 18780,2 | -91,0 | |
| Arctic BioniX F120 | 47,6 | -82,0 | 369,7 | -72,0 | 19330,5 | -90,9 | |
| SilverStone SST-AP123 | SilverStone SST-AP123 | 100,8 | -80,7 | 339,0 | -73,4 | 18780,2 | -90,9 |
| Noctua NF-P12 redux-1700 PWM | 116,5 | -76,8 | 339,0 | -69,4 | 19330,5 | -90,8 | |
| SilentiumPC Fluctus 120 PWM | 146,7 | -78,0 | 586,9 | -72,7 | 18780,2 | -91,0 | |
| MSI MEG Silent Gale P12 | 164,7 | -80,6 | 339,0 | -71,1 | 19330,5 | -91,0 | |
| Asus ROG Strix XF120 | Asus ROG Strix XF120 | 92,4 | -77,5 | 369,7 | -70,1 | 19330,5 | -91,2 |
| Akasa Vegas X7 | 31,3 | -84,3 | 369,7 | -74,3 | 18780,2 | -90,8 | |
| Reeven Coldwing 12 | 123,4 | -71,2 | 380,5 | -71,3 | 18780,2 | -90,9 | |
| Reeven Kiran | 127,0 | -77,7 | 380,5 | -73,4 | 19330,5 | -90,8 | |
| SilentiumPC Sigma Pro 120 PWM | 63,5 | -83,4 | 380,5 | -74,0 | 2347,5 | -83,8 | |
| SilentiumPC Sigma Pro Corona RGB 120 | 134,5 | -72,0 | 369,7 | -75,1 | 19897,0 | -90,8 | |
| SilverStone SST-AP121 | 53,4 | -81,9 | 380,5 | -70,8 | 19330,5 | -91,0 | |
| SilverStone SST-FQ121 | 41,8 | -78,9 | 369,7 | -75,0 | 19330,5 | -91,1 | |
| Xigmatek XLF-F1256 | 50,4 | -70,3 | 246,8 | -72,7 | 19897,0 | -90,9 |
| Fan | Dominant sound freq. and noise level, hexagonal grille@45 dBA | NF-F12 PWM | NF-A15 PWM | ||||
| Low range | Mid range | High range | |||||
| Frequency [Hz] | Noise level [dBu] | Frequency [Hz] | Noise level [dBu] | Frequency [Hz] | Noise level [dBu] | ||
| BeQuiet! Light Wings White (BL101) | 138,5 | -79,0 | 854,3 | -67,9 | 19897,0 | -90,7 | |
| Scythe Kaze Flex II 120 | 130,7 | -75,7 | 369,7 | -69,4 | 18780,2 | -90,9 | |
| Valkyrie X12 | 20,9 | -74,9 | 359,2 | -65,3 | 18780,2 | -90,7 | |
| Fractal Design Silent R3 140 mm | 119,9 | -65,7 | 380,5 | -69,7 | 19330,5 | -90,7 | |
| Arctic P12 PWM PST A-RGB | 116,5 | -71,1 | 465,8 | -70,9 | 19330,5 | -90,9 | |
| Scythe Kaze Flex II 120 Slim | 146,7 | -72,5 | 586,9 | -63,6 | 19330,5 | -90,8 | |
| Seasonic MagFlow 1225 PWM | 151,0 | -72,4 | 403,2 | -69,5 | 19897,0 | -90,6 | |
| Arctic P12 PWM PST | 123,4 | -59,6 | 380,5 | -67,8 | 19897,0 | -90,8 | |
| Cooler Master Mobius 120 OC | 151,0 | -75,5 | 349,0 | -65,1 | 18245,6 | -91,0 | |
| Corsair AF120 RGB Elite | 179,6 | -65,2 | 359,2 | -65,9 | 19330,5 | -91,0 | |
| Enermax SquA RGB White | 134,5 | -72,6 | 621,8 | -68,8 | 19897,0 | -90,8 | |
| Endorfy Fluctus 140 PWM | 155,4 | -65,1 | 621,8 | -69,1 | 2280,7 | -87,5 | |
| Endorfy Fluctus 140 PWM ARGB | 155,4 | -66,6 | 621,8 | -68,2 | 2487,1 | -87,5 | |
| Arctic P12 Slim PWM PST | 22,8 | -65,6 | 369,7 | -69,3 | 19330,5 | -90,8 | |
| BeQuiet! Silent Wings Pro 4 (BL099) | 138,5 | -68,0 | 380,5 | -67,3 | 2416,3 | -86,1 | |
| Fractal Design Prisma AL-14 PWM | 169,5 | -72,5 | 403,2 | -61,9 | 7240,8 | -90,3 | |
| Gigabyte Aorus 140 ARGB | 130,7 | -80,3 | 678,1 | -65,7 | 2487,1 | -90,7 | |
| BeQuiet! Light Wings (BL075) | 184,9 | -77,1 | 369,7 | -68,2 | 19330,5 | -90,8 | |
| Fractal Design Aspect 14 RGB PWM | 103,7 | -77,5 | 380,5 | -68,7 | 18780,2 | -90,8 | |
| DeepCool FK120 | 127,0 | -78,1 | 718,4 | -66,0 | 19897,0 | -90,8 | |
| Asus TUF Gaming TF120 | 106,8 | -78,0 | 369,7 | -66,8 | 19897,0 | -91,1 | |
| BeQuiet! Light Wings (BL072) | 142,5 | -69,8 | 718,4 | -65,6 | 18780,2 | -90,9 | |
| DeepCool FC120 | 169,5 | -75,0 | 339,0 | -67,4 | 2215,8 | -87,1 | |
| Nidec Servo Gentle Typhoon D1225C (2150/12) | 179,6 | -69,3 | 359,2 | -64,5 | 6267,2 | -90,2 | |
| BeQuiet! Shadow Wings 2 (BL085) | 130,7 | -77,6 | 369,7 | -69,3 | 19330,5 | -90,9 | |
| Noctua NF-A12x25 PWM | 23,1 | -72,6 | 640,0 | -66,1 | 18780,2 | -90,8 | |
| Corsair AF120 Elite (black) | 179,6 | -69,1 | 369,7 | -67,5 | 19330,5 | -91,0 | |
| Cooler Master MasterFan SF120M | 119,9 | -74,3 | 380,5 | -67,9 | 4182,8 | -87,8 | |
| Akasa Alucia SC12 | 151,0 | -76,6 | 369,7 | -67,2 | 19330,5 | -90,7 | |
| BeQuiet! Silent Wings Pro 4 (BL098) | 190,3 | -74,5 | 339,0 | -62,4 | 2791,7 | -83,7 | |
| Thermalright X-Silent 120 | 119,9 | -73,4 | 369,7 | -69,5 | 4974,2 | -88,6 | |
| Fractal Design Aspect 12 RGB PWM | 119,9 | -78,5 | 586,9 | -69,3 | 19897,0 | -90,7 | |
| BeQuiet! Silent Wings 3 (BL066) | 127,0 | -68,7 | 391,7 | -67,2 | 19897,0 | -90,9 | |
| Gelid Zodiac | 127,0 | -71,9 | 380,5 | -64,3 | 19330,5 | -91,1 | |
| Fractal Design Dynamic X2 GP-12 PWM | 123,4 | -75,0 | 1566,8 | -76,7 | 2215,8 | -89,6 | |
| BeQuiet! Pure Wings 2 (BL039) | 75,5 | -78,2 | 369,7 | -69,9 | 19330,5 | -90,9 | |
| Gigabyte Aorus 120 ARGB | 164,7 | -78,7 | 678,1 | -66,8 | 19897,0 | -90,7 | |
| Arctic BioniX P120 A-RGB | 130,7 | -70,6 | 219,8 | -62,2 | 18780,2 | -90,7 | |
| Akasa OTTO SF12 | 160,0 | -72,4 | 369,7 | -66,4 | 4431,5 | -88,3 | |
| Cooler Master SickleFlow 120 ARGB | 127,0 | -74,1 | 380,5 | -66,0 | 6267,2 | -90,8 | |
| Alphacool SL-15 PWM | 134,5 | -72,2 | 369,7 | -66,7 | 19330,5 | -90,8 | |
| Arctic BioniX F120 | 58,2 | -78,7 | 369,7 | -68,3 | 18780,2 | -90,7 | |
| SilverStone SST-AP123 | SilverStone SST-AP123 | 130,7 | -79,2 | 339,0 | -69,6 | 18780,2 | -90,9 |
| Noctua NF-P12 redux-1700 PWM | 142,5 | -72,8 | 586,9 | -65,0 | 18780,2 | -90,8 | |
| SilentiumPC Fluctus 120 PWM | 174,5 | -75,1 | 349,0 | -62,1 | 2957,7 | -90,3 | |
| MSI MEG Silent Gale P12 | 130,7 | -72,7 | 415,0 | -67,2 | 2487,1 | -89,3 | |
| Asus ROG Strix XF120 | Asus ROG Strix XF120 | 119,9 | -73,4 | 604,1 | -69,6 | 19330,5 | -90,9 |
| Akasa Vegas X7 | 33,6 | -81,5 | 427,1 | -70,2 | 18780,2 | -90,9 | |
| Reeven Coldwing 12 | 160,0 | -64,7 | 369,7 | -67,7 | 19897,0 | -91,0 | |
| Reeven Kiran | 155,4 | -73,7 | 369,7 | -69,7 | 19330,5 | -90,8 | |
| SilentiumPC Sigma Pro 120 PWM | 130,7 | -77,8 | 369,7 | -68,1 | 4431,5 | -90,1 | |
| SilentiumPC Sigma Pro Corona RGB 120 | 20,3 | -64,8 | 369,7 | -73,0 | 3044,4 | -89,2 | |
| SilverStone SST-AP121 | 130,7 | -78,0 | 570,2 | -64,9 | 18780,2 | -91,2 | |
| SilverStone SST-FQ121 | 169,5 | -64,4 | 246,8 | -77,4 | 19330,5 | -91,0 | |
| Xigmatek XLF-F1256 | 58,2 | -74,2 | 678,0 | -63,8 | 19330,5 | -90,9 |
Why is there a missing value sometimes? There may be more reasons. Usually it is because the fan could not be adjusted to the target noise level. Some have a higher minimum speed (or the speed is low, but the motor is too noisy) or it is a slower fan that will not reach the higher decibels. But the results in the graphs are also missing if the rotor is brushing against the nylon filter mesh. In that case, we evaluate this combination as incompatible. And zero in the graphs is naturally also in situations where we measure 0.00. This is a common occurrence at extremely low speeds with obstructions or within vibration measurements.
