Noise levels (was VAX 11/780)

From: Dave McGuire <mcguire_at_neurotica.com>
Date: Thu Dec 26 12:58:29 2002

On Wednesday, December 25, 2002, at 06:47 PM, acme_at_ao.net wrote:
>> another, but no such luck... and I know plenty of folks who spent
>> long
>> years working in big machine rooms... 90+ dB all the time... no
>> thanks.
>
> Umm, 90+ dB? Can this be right?? That seems awfully loud. Is that
> typical for
> larger machines?

   Many machines, yes, but some designers have met with success using
large-diameter, slow-turning blowers as are found in machines like DEC
VAX6000s and AlphaServer 8400s. These blowers are very large, and
surprisingly quiet.

   For more "traditional" cooling systems (dozens of screaming muffin
fans) it definitely pays to make whatever household modifications it
takes to support a large-machine lifestyle. ;) I hear a low rumble
coming from my machine room, which is mostly conducted through the
structure of the house and isn't really noticeable. I love my
machines, but it's nice to not need to work in there very often...can't
hear myself think!

           -Dave

--
Dave McGuire           "She's a cheek pincher.  I have scars."
St. Petersburg, FL                          -Gary Nichols
Received on Thu Dec 26 2002 - 12:58:29 GMT

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