Lower fan speed on Dell Poweredge 1550

[ephesius]

Hi everyone,

I recently installed pfsense on a dell poweredge 1550. There are four fans inside and they are incredibly loud, is there a way to slow down the rpm's of these fans to quiet them without buying new fans to replace them?

Thanks

[akus]

@ephesius:

Hi everyone,

I recently installed pfsense on a dell poweredge 1550. There are four fans inside and they are incredibly loud, is there a way to slow down the rpm's of these fans to quiet them without buying new fans to replace them?

Thanks

I just silenced my Dell Poweredge 2550. Weld 68ohm's resistance between the plus pole (the fan have red or yellow cables I think).
Took the noise to atleast half!