[132871] in North American Network Operators' Group
Re: Want to move to all 208V for server racks
daemon@ATHENA.MIT.EDU (Seth Mattinen)
Thu Dec 2 12:44:01 2010
Date: Thu, 02 Dec 2010 09:43:36 -0800
From: Seth Mattinen <sethm@rollernet.us>
To: nanog@nanog.org
In-Reply-To: <alpine.LRH.2.00.1012021125510.5046@zed.bithose.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 12/2/10 8:35 AM, Jameel Akari wrote:
>
> Just be careful on older non-autosensing power supplies where you have
> to flip a switch to go from 100-120V to 200-240V input, in that you make
> sure to flip them to begin with, and that you flip them back should you
> ever mover them back to a 120V circuit.
>
Been there, done that with my nagios box when I had to replace a fan
years ago. The build table was 120V so I flipped the switch and forgot
to flip it back. It actually booted for about 5 seconds before things
inside the PSU started exploding and spewing magic smoke. Scared the
daylights out of me. No damage other than requiring a new PSU.
~Seth
