[rescue] "In My Way", 2015 Edition

Cory Smelosky b4 at gewt.net
Tue Apr 7 18:42:15 CDT 2015


I need to do the same with a V480 and a cisco router.

Sent from my iPhone

> On Apr 7, 2015, at 18:47, Stephen Conley <cheetah at tanabi.org> wrote:
>
> It's also possible to replace the fans with something quieter.
>
> http://www.quietpc.com/casefans
>
> Note : I haven't used this particular company so I'm not advocating
> for them, merely using them as an example.
>
> I had some success with an E450 and noise reduction -- it wasn't my
> specific goal, but I had a fan actually die on it and I replaced it
> with a quiet fan and did notice a significant difference.
>
>
> Steve
>
>
>> On Tue, Apr 7, 2015 at 6:18 PM, Patrick Giagnocavo <xemacs5 at gmail.com>
wrote:
>> Some of these servers, with their multiple fans, have a "beat" or "ringin"
>> sound, as the fans don't spin at precisely the same speed.  So you have a
>> periodic louder tone as all the fans make noise in synchronicity, which
>> then subsides as they move out of phase; then grows louder again.
>>
>>> On Tue, Apr 7, 2015 at 3:30 PM, Carl R. Friend <crfriend at rcn.com> wrote:
>>>
>>>   On Tue, 7 Apr 2015, Lionel Peterson wrote:
>>>
>>> The V240 is rated at 'under' 7.1 bels -
>>>> http://www.andovercg.com/datasheets/sun-fire-v240-server.pdf
>>>
>>>   I believe that normal human conversation takes place at around
>>> 68 decibels (6.8 b), so being close to a V240/245 would make polite
>>> conversation difficult.  There's also the character of the noise;
>>> most of it comes from either 2 or 4 10,000 RPM mini-fans attached
>>> to the CPU heat-sinks (if you have one CPU you have two of the
>>> dratted things; 2 CPUs, 4 fans).  The noise footprint adds up fast.
>>>
>>>   If you get one, stock up on the heat-sink fans; they do not have
>>> a long service life, and you'll fry the CPUs if both die at the same
>>> time and the thing doesn't power off.
>>>
>>>   They're delightful machines in a commercial setting, but would be
>>> rather too loud in a residential setting.  I also believe they're FCC
>>> Class-A equipment, not that that matters much to the crowd here.  I'd
>>> like a couple here for occasional use, but blanch at the thought of
>>> sharing my study with them.
>>>
>>>   Cheers!
>>>
>>> +------------------------------------------------+---------------------+
>>> | Carl Richard Friend (UNIX Sysadmin)            | West Boylston       |
>>> | Minicomputer Collector / Enthusiast            | Massachusetts, USA  |
>>> | mailto:crfriend at rcn.com                        +---------------------+
>>> | http://users.rcn.com/crfriend/museum           | ICBM: 42:22N 71:47W |
>>> +------------------------------------------------+---------------------+
>>> _______________________________________________
>>> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
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