[e-nsp] x450 strange restarts

[igor.kramar at vegatele.com]

Hello.
We also had problems with this equipment.
Really on a management board (it is located head over heels on a motherboard), in the block of stabilizers, there are six electrolytic condensers.
As a rule after 4-5 years of operation they fail. Their replacement by the new, solves a problem.
We put bigger capacity and calculated on the bigger voltage of power supply. 
Usually this is a Polymer Capacitors. Their characteristics are more stable.

-----------------
Igor Kramar
Chiff of Core Network Department
ISP Farlep-Invest, Odessa, Ukraine
почта:  igor.kramar at vegatele.com



-----Original Message-----
From: extreme-nsp [mailto:extreme-nsp-bounces at puck.nether.net] On Behalf Of Alexander Shikoff
Sent: Wednesday, December 11, 2013 1:02 PM
To: Marcin Kuczera
Cc: extreme-nsp at puck.nether.net
Subject: Re: [e-nsp] x450 strange restarts

On Tue, Dec 10, 2013 at 02:07:45PM +0100, Marcin Kuczera wrote:
> On 2013-12-10 13:27, Christian ROLLAND wrote:
> > On 12/10/2013 11:13 AM, Marcin Kuczera wrote:
> >> hello,
> >>
> >> we have a lot of old x450-24x switches, but one recently behaves 
> >> very strange.
> >> ExtremeXOS version 12.4.5.3 v1245b3-patch1-6
> >>
> >> More complicate, it is x450 in particular location, so replaced by 
> >> other unit - behaves in particular place in the same way:
> >>
> >> 12/06/2013 17:53:08.52 <Noti:EPM.UnexpctRebootDtect> Slot-1: 
> >> Booting after System Failure.
> >> 12/06/2013 17:53:07.23 <Noti:EPM.wd_warm_reset> Slot-1: Changing to 
> >> watchdog warm reset mode
> >>
> >> No other information in log, temperature is normal 35.5degrees Celsius.
> >>
> >> Any hints ?
> >> Regards,
> >> Marcin
> >>
> >
> > pb with flash memory.
> >
> > Good luck...
> >
> 
> CompactFlash ?
> This I can replace.

If that doesn't help then remove cover and check out condensers on motherboard.
We had the similar problems, some Summit X350 and X450 switches suddenly died.
We found some condensers were bloated. We replaced them with new ones with same capacity, and all switches are working now properly.

--
MINO-RIPE
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