[rescue] loud fans
J. Alexander Jacocks
jjacocks at mac.com
Tue Jun 17 17:25:39 CDT 2003
Ryan Thoryk <ryan at tliquest.net> said:
> I was wondering if anyone here knew how to solve this problem. My Sun
> Ultra 2 has extremely loud power supply fans, and I could've sworn
> they used to be quieter about a month or so ago (???). As you know
> the Ultra 2's have 4 fans, 2 on the left for the RAM and CPU modules,
> and 2 in the power supply in the back right. My SGI Indigo2 is really
> quiet compared to this machine...anyway, is there a way to change the
> fan speeds, or replace the fans (this would also be good info for
> people owning older machines with insanely loud fans).
> Ryan Thoryk
> Unix and Network Specialist
> ryan at tliquest.net
If you think an Ultra 2 is loud, try having a CycleQuad on your desk.
I asume that the bearings in all of your fans are OK. Flat
bearings/bushings will make a fan _really_ loud. Other than that, you
can try replacing the fans with others with greater or equal CFM
ratings, but that would be a bit of a pain.
More information about the rescue