SMP and NMI errors (4.10)

[Wilko Bulte]

On Mon, Jul 12, 2004 at 09:11:56AM +0200, Marton Kenyeres wrote:
> On Monday 12 July 2004 04:07, David G. Lawrence wrote:
> > > > > If I boot a uniprocessor kernel this problem doesn't occur.
> > > >
> > > > It might be temperature related then :)
> > >
> > > I was hoping no-one would say that :)
> > >
> > > This is a 1U rack mount and currently seems to run at about ~40 deg. C
> > > on CPU1, ~30 deg. C on CPU2 and ~33 deg. C system temp.  First CPU
> > > is a little hot perhaps but I don't think too high to be a problem?
> >
> >    Actually, this sounds more like a weak/overloaded power supply problem.
> > Power supplies in many 1U servers are very inadequate for the job and often
> > have problems in dual processor configurations.
> >
> > -DG
> >
> > David G. Lawrence
> > President
> > Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500
> > TeraSolutions, Inc. - http://www.terasolutions.com - (888) 346 7175
> > The FreeBSD Project - http://www.freebsd.org
> > Pave the road of life with opportunities.
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> 
> 
> I've seen similar errors on an old Abit BX-133 mobo. After swaping several 
> parts, to no avail, I gave up on that. Thought I could live with some 
> annoying messages. Then came spontaneus reboots, happening more and more 
> often, and the rate of the NMI messages started to rise also. It turned out, 
> that several capacitors were leaking, so I threw out the board. I've no way 
> to confirm it, but I guess the NMI messages were caused by that, so it's 
> quite possible that you have some power problems indeed.

Google a bit on Abit and capacitors and you will know more.

I repaired mine by replacing the caps. Piece of cake.

-- 
Wilko Bulte				wilko at FreeBSD.org