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Article #60052

Re: PCI-SC200 (ncr53c810) scsi problem

#60052
From: Jeremy Fitzhardinge
Date: Sat, 19 Nov 1994 02:32
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In <3ajb03$34b@harbinger.cc.monash.edu.au> suter@fawlty8.eng.monash.edu.au (Mr D. Suter) writes:
>Am I doing something obviously wrong or should I return the SCSI card
>and get another make?
>Should I demand another motherboard?
>Should I reread the howto for the 1000 time?

This sounds like it could be a broken PCI bios - there are a number
about.  The normal thing that happens is that Linux asks the BIOS
about the specs of the card (address, IO ports, irq) and uses that
if you don't override it.  It seems the bios is saying the card's on
irq 0, which is silly.  You can:
- Play with the bios config and see if it has anything about PCI interrupts
- Try using overrides on the lilo command line
- Ask your vendor for a new BIOS and see how that goes.

As far as interrupts go, you should map PCI interrupt A to a spare
one (9 seems common), and set it to level triggered.  You should use
interrupt A because a number of PCI motherboards don't implement
B, C or D properly or at all.

	J
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From: jeremy@sour.sw.oz.au (Jeremy Fitzhardinge)
Newsgroups: aus.computers.linux,comp.os.linux.help
Subject: Re: PCI-SC200 (ncr53c810) scsi problem
Date: 19 Nov 94 02:32:13 GMT
Organization: Softway Pty Limited
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