Output Noise
I use a Class 1 Bruel & Kjaer 2270 G4 sound analyzer equipped with a Type 4955a microphone with a dBA-weighted dynamic range of below 6 dBA and up to 110 dBA. All tests are conducted inside a hemi-anechoic chamber with a noise floor close to 6 dBA and at an ambient temperature of 25–28 °C. The test subject is placed a meter from the sound analyzer.
Full & 70% Speed
The fan’s noise stays low.
Speed (Percentage) – Noise
I use a different setup to drive the fan for noise measurements, so there might be a difference in the readings of the Longwin machine, especially in the max fan speed reading.
Pages:
this is crazy high.
I wonder why Arctic does not specify the MTTF? I found a “Life Expectancy Report” on their support page from Nov 2024 for the P9 PWM PST fan where their testing found ~210k hours MTTF at 40C: https://support.arctic.de/products/p9-pwm-pst/techdocs/MTTF%20Report,%20P9%20PWM%20PST%20(2025-01-27).pdf
I’m curious if this MTTF applies to the P12 and P14 as well?