[ale] PC power supply voltages

[Jim Popovitch]

On Thu, 2007-02-15 at 22:12 -0500, Dow_Hurst wrote:
> Jim,
> Can you hear any fan bearings going bad?  Has someone brought in a small heater that is on the same circuit?

It's in a datacenter downtown, so I can't (yet) hear it  ...and I don't
feel like driving down there atm.  However an identical box, right next
to this box, isn't having the same issues... so I think the "small
heater" issue is out of the question.  The fan speed is different
between the two boxes, but neither is out of range of it's average over
the past year.  All metrics are in spec, other than the occasional blip
on the low voltage power lines.

-Jim P.

> Dow
> 
> 
> -----Original Message-----
> >From: Jim Popovitch <jimpop at yahoo.com>
> >Sent: Feb 15, 2007 9:35 PM
> >To: Atlanta Linux Enthusiasts <ale at ale.org>
> >Subject: Re: [ale] PC power supply voltages
> >
> >On Thu, 2007-02-15 at 20:44 -0500, Scott Castaline wrote:
> >> Jim Popovitch wrote:
> >> > I've got a box where lm-sensors shows the +3.3 voltage going up and down
> >> > between 3.39 and 3.41.  It jumps to 3.41 every ~1.5 hours and shortly
> >> > thereafter drops back to 3.39 (which has been it's normal voltage for
> >> > the past year or so).  A second box right near it isn't experiencing
> >> > this behavior, which started at 2pm today, and there are no other
> >> > indications of any problems.  How concerned should I be?
> >> >
> >> I don't think that it's a problem yet since the fluctuation is within 5% 
> >> of it's nominal voltage of 3.3. But it could be an indication of 
> >> something is strarting to go, but I've seen older power supplies do that 
> >> and last for several months to a couple of years.
> >
> >It gets worse. :-(
> >
> >-12V is -14.91 (outside range [-10.80:-13.18])
> >VBat is 0.03 (outside range [2.40:3.60]) <- WTF is VBat? (it's a server)
> >VCore is 1.35 (outside range [1.93:1.93])
> >V5SB is 5.16 (outside range [4.86:5.14])
> >
> >
> >-Jim P.
> 
> 
> No sig.
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