Date: Mon, 12 Aug 1996 14:27:51 -0500 (CDT) From: Joe Greco <jgreco@brasil.moneng.mei.com> To: mark@grondar.za (Mark Murray) Cc: scsi@freebsd.org Subject: Re: 2 AHA1542's in one box Message-ID: <199608121927.OAA08923@brasil.moneng.mei.com> In-Reply-To: <199608121912.VAA10070@grumble.grondar.za> from "Mark Murray" at Aug 12, 96 09:12:17 pm
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> Hi > > Does anyone have any experience in putting 2 AHA1542 cards into one > box? > > I tried this and have had no luck. Here is the saga: > > The first card is set to factory default and is an AHA1542C. The > second has been moved to Port 0x240 DRQ 6 IRQ 9 and is an AHA1542B. > After lots of fun-and-games while I actually got the card's strapping > right :-), I can get the 1542C ^A-BIOS to do a diagnostic run on both > cards and to probe for devices on both cards. > > Now - the first card works just fine. The second probes OK during > FreeBSD boot, but hangs solid during the "waiting for SCSI devices > to settle" pause. I have checked _everything_. The terminators are > OK, the card works (strapped to factory default) in another machine, > There are no DRQ/PORT/IRQ conflicts. > > The motherboard is a Megabyte G486 with an i486DX/50 and 16MB of RAM. Other than to say that I did this once, and had it running under 2.0.5R with no apparent problems, I can offer no real assistance other than to reassure you that a 1542B and 1542C can happily coexist in the same box. Never thought to try to access the 1542B's bus with the 1542C's BIOS though. 486DX/33, 32MB RAM, AHA-1542B, AHA-1542C, lots of disks, R.I.P. ISA-bus-based news servers (got too big) :-/ Worked well for a long time. ... JG
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