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Date:      Mon, 8 Jan 2001 10:03:10 -0600 (CST)
From:      Chris Dillon <cdillon@wolves.k12.mo.us>
To:        "Daniel O'Connor" <doconnor@gsoft.com.au>
Cc:        Francisco Reyes <fran@reyes.somos.net>, freebsd-chat@FreeBSD.ORG, David Kelly <dkelly@hiwaay.net>
Subject:   Re: ECC worth the extra cost for SOHO server?
Message-ID:  <Pine.BSF.4.21.0101080958290.96355-100000@mail.wolves.k12.mo.us>
In-Reply-To: <XFMail.010108104336.doconnor@gsoft.com.au>

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Wow... people REALLY need to check their CC's.  That was bad.  Two CCs
to chat and two CCs to Francisco Reyes.

On Mon, 8 Jan 2001, Daniel O'Connor wrote:

> On 07-Jan-01 Francisco Reyes wrote:
> >  On Sat, 6 Jan 2001, David Kelly wrote:
> > > Unless a memory chip fails catastrophically, its hard to find the errant
> > > chip. When they go bad they usually start logging an ECC correction
> > > every day or two.
> >  Where does that get reported? As I understand ECC is handled by the
> >  motherboard.
> 
> The chipset reports them.. I think an error generates an NMI and a
> correction has to be read out of a chipset specific register.

AFAIK, with every X86 chipset I've used at least, the correction
happens automatically, and the NMI is only there to alert you that it
has happened.  Most systems will let you turn the NMI off for
corrections and only issue an NMI for an un-correctable error.


-- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net
   FreeBSD: The fastest and most stable server OS on the planet.
   For IA32 and Alpha architectures. IA64, PPC, and ARM under development.
   http://www.freebsd.org




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