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Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS?

From philo  <philo@privacy.net>
Newsgroups comp.os.linux.hardware
Subject Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS?
Date 2014-01-10 18:52 -0600
Organization A noiseless patient Spider
Message-ID <laq4k5$ist$1@dont-email.me> (permalink)
References (2 earlier) <Y9WdnSaZFsPFyE3PnZ2dnUVZ_qudnZ2d@earthlink.com> <lapln0$r3t$1@dont-email.me> <b5GdndcHvZGNw03PnZ2dnUVZ_uednZ2d@earthlink.com> <lapo69$au8$1@dont-email.me> <voKdnfZmv8Mn8E3PnZ2dnUVZ_sqdnZ2d@earthlink.com>

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On 01/10/2014 04:01 PM, Ant wrote:
> On 1/10/2014 1:20 PM PT, philo  typed:
>
>>> ...
>>>> Now pull the AC plug from the UPS and see if the lamp stays lit.
>>>
>>> I only unplugged my UPS's AC plug from the house room's wall for about
>>> 15 seconds since I was pretty sure my "not that old" UPS still works (a
>>> good test to do).
>>
>> If your computers were on at the time and it held for 15 seconds then
>> you know at least it would hold up for any momentary power failure.
>
> Yep, everything survived from that 15 seconds. Someone suggested it
> could be the old 600 watts SeaSonic S12 PSU from 2005/2006? I wished I
> could easily reproduce this to test.



It really sounds like a voltage surge. Even though a UPS should protect 
for that ...most lower priced UPS's are the standby type that will 
rapidly "switch on" in the event of a power failure. It's not impossible 
for them to pass on some amount of "noise".


The more expensive types employ a ferroresonant transformer which is 
pulse-width modulated and it's virtually impossible for one to pass on a 
voltage spike.

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Thread

Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-10 11:23 -0800
  Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? philo  <philo@privacy.net> - 2014-01-10 13:58 -0600
    Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-10 12:17 -0800
      Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? philo  <philo@privacy.net> - 2014-01-10 14:37 -0600
        Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-10 12:54 -0800
          Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? philo  <philo@privacy.net> - 2014-01-10 15:20 -0600
            Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-10 14:01 -0800
              Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? philo  <philo@privacy.net> - 2014-01-10 18:52 -0600
                Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-10 17:43 -0800
                Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? philo  <philo@privacy.net> - 2014-01-10 19:59 -0600
                Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-11 01:24 -0800
                Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? philo  <philo@privacy.net> - 2014-01-11 08:18 -0600
  Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? John Dulak <Johnd@Booogus.com> - 2014-01-10 16:38 -0500
    Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-10 13:59 -0800
      Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? "Rod Speed" <rod.speed.aaa@gmail.com> - 2014-01-11 15:09 +1100
        Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-11 01:21 -0800
      Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Arno <me@privacy.net> - 2014-01-11 12:52 +0000
        Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-11 08:07 -0800
          Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? "Rod Speed" <rod.speed.aaa@gmail.com> - 2014-01-12 05:26 +1100
            Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-11 13:50 -0800
              Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? "Rod Speed" <rod.speed.aaa@gmail.com> - 2014-01-13 05:23 +1100
                Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-12 10:56 -0800
          Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Arno <me@privacy.net> - 2014-01-13 01:05 +0000
            Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-13 00:50 -0800
  Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Johann Klammer <klammerj@NOSPAM.a1.net> - 2014-01-11 12:01 +0100
    Re: Did something on my old Debian/Linux stable box crash and mess up my CMOS? Ant <ant@zimage.comANT> - 2014-01-11 08:08 -0800

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