Date: Sun, 9 Jun 1996 18:09:57 +0200 From: se@zpr.uni-koeln.de (Stefan Esser) To: Dave Hayes <dave@kachina.jetcafe.org> Cc: scsi@freebsd.org, hackers@freebsd.org Subject: Re: Using two NCR 53C825 controllers blows up? Message-ID: <199606091609.AA01848@Sisyphos> In-Reply-To: Dave Hayes <dave@kachina.jetcafe.org> "Re: Using two NCR 53C825 controllers blows up?" (Jun 8, 16:27)
next in thread | previous in thread | raw e-mail | index | archive | help
On Jun 8, 16:27, Dave Hayes wrote: } Subject: Re: Using two NCR 53C825 controllers blows up? } "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com> writes: } >What kind of machine is this? } } Oops, sorry. It's not a name brand per se. It is an "Intel Advanced } ZP" motherboard. AMI Bios, and I don't have the revision handy. } } >However, the "second" card was actually installed with a lower address } >or IRQ or something. The only thing that made it come "after" the } >first was because it was hacked into the BIOS that way. After } >bootstrapping, NT doesn't use the BIOS anymore, and so would make the } >"second" controller into the first controller under NT, and the } >"first" controller would become the second. The drives on the } >controllers, of course, would then follow the new order. Very very } >annoying. } } That's real swell, now how do I find out whether it's doing that? } These NCR cards have jumpers to switch between INT A/B/C/D, but } I don't think PCI interrupts are as simple as ISA ones. Do I hafta } play with the jumpers? No, PLEASE always use INT A for a single function PCI device (like the NCR is) ! You may try swapping the locations of your controllers, or the direction of the PCI bus probe (it currently scans from low to high device numbers, as suggested in the PCI spec, but it seems there are PCI BIOS implementations that probe from high device numbers to low numbers). If there is one non-WIDE and one WIDE NCR card in a system, then the NCR SDMS software appears to always make the non-WIDE the primary controller (ie. will try to boot from it). Look into the LINT kernel config file for the syntax required to hardwire SCSI drives. This will permit you to specify drive names independently of the probe order. Let me know if all of this does not solve your problem ... Regards, STefan -- Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021 Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160 ============================================================================== http://www.zpr.uni-koeln.de/~se <se@ZPR.Uni-Koeln.DE>
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199606091609.AA01848>