Box, Contents & Bundle
You will be disappointed if you expect a fancy box in a package containing five fans, dropping the cost to six dollars per fan. I don’t mind the plain box at all, but I wanted to provide more protection to its internals. Fans are tougher than most IT parts, but they can still break in harsh shipping conditions. The bundle includes only the required screws for chassis mounting.
There are no rubber mounts on the corners for reduced vibrations, but Arctic states that vibrations are minimized thanks to the motor’s design and operation, so rubber mounts are not required. Less vibrations mean less friction, so lower operating temperatures. This means less fan stress, so its lifetime is increased.
Arctic provides a scheme of the bearing. If this scheme is accurate, the bearing looks to be of rifle type instead of fluid dynamic, still way better than a plain sleeve bearing.
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?