[time-nuts] 5370A vs 5370B

Magnus Danielson magnus at rubidium.dyndns.org
Wed Mar 10 17:30:58 UTC 2010


Ed Palmer wrote:
> One trick I always use to quiet down a rowdy fan is to replace the 
> mounting screws with rubber mounts.  This isolates the fan's mechanical 
> vibrations from the chassis.  The difference is audible - even with a 
> good fan.  I salvaged some mounts  from IBM machines that work great.  
> Most of the big online computer retailers have something along these lines.

The same trick works very well for hard-disks.

Modern quiet computer chassis is very very quiet while using a multitude 
of very simple and straightforward tricks like this. Recently built a 
server with 8 hard-disks this way. The DVD-player is the noisiest 
part... by far. However, we will never really use it after initial 
booting, so it is OK.

* rubber suspension of fans
* rubber suspension of hard-disks
* damping on flat surfaces

We got a pair of extra large (and quiet) fans to ensure air-flow.

Slightly more expensive than the standard chassis. Quieter when in the 
terminal room than the computer-hall with closed door.

Cheers,
Magnus



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