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Date:      Wed, 11 Jun 1997 22:54:20 +0200
From:      Stefan Esser <se@FreeBSD.ORG>
To:        alex fuchsstadt <afuchs@totum.plaut.de>
Cc:        sthaug@nethelp.no, hardware@FreeBSD.ORG
Subject:   Re: overclocking
Message-ID:  <19970611225420.26050@mi.uni-koeln.de>
In-Reply-To: <Pine.BSF.3.95.970611100303.9034B-100000@totum.plaut.de>; from alex fuchsstadt on Wed, Jun 11, 1997 at 10:11:27AM %2B0200
References:  <20071.866011725@verdi.nethelp.no> <Pine.BSF.3.95.970611100303.9034B-100000@totum.plaut.de>

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On Jun 11, alex fuchsstadt <afuchs@totum.plaut.de> wrote:
> I read all the mails about the overclocking theme and it turned to some
> different but interesting ones.
> I had a NCR 53C810 too and it died while working with fBSD, I suddenly got
> a message like: NCR died .........

Well, there is no test for a "dead" NCR chip in the code,
so you can only have received a message from the timeout
handler, which warns if no progress has been made for some
time.

> I bought a new one and run it without any problems. I had a 486 ASUS
> motherboard before with one integrated NCR also running without
> anyproblems.
> Anyone else there having problems with suddenly died NCRs? 

I have heard of just a few defective NCR chips over the last 
three years. Symptons were different: From complete failure
(system won't start with controller card installed) to a data
pattern dependent lockup (one NCR card could not extract some
NetBSD distribution file: Writing a certain data pattern lead
to a PCI bus error interrupt, and thus one file could not be
written to disk; replacing the NCR, card solved that ...)

Most of the problems I've heard of should have been covered 
by the SCSI card's warranty.

Regards, STefan



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