So, I have an old 3000/300 which is my "main" machine (it receives my
mail and serves my web pages, and has been happily chugging along for
years).  I've put in a second SCSI controller but can't get it to work.
Here are the critical bits from dmesg; the complete dmesg is below.

[ First, we do find the onboard controller. ]
tc0 at tcasic0: 12.5 MHz clock
tcds0 at tc0 slot 4 offset 0x0: TurboChannel Dual SCSI (baseboard)
asc0 at tcds0 chip 0: NCR53C94, 25MHz, SCSI ID 7
scsibus0 at asc0: 8 targets, 8 luns per target

[ But we can't find the new controller. ]
asc (53c94 SCSI) at tc0 slot 1 offset 0x0 not configured

Can anyone help?  Thanks.

	-Kevin

[ Here is the complete listing. ]
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 1.5.1_BETA2 (ALPHA-$Revision: 1.127.2.1 $) #0: Sat Jun  2 20:02:46 EDT 2001
    ksulliva@kludge.psc.edu:/var/home/ksulliva/kern/KLUDGE
DEC 3000 - M300LX, 125MHz
8192 byte page size, 1 processor.
total memory = 112 MB
(2048 KB reserved for PROM, 110 MB used by NetBSD)
avail memory = 97552 KB
using 716 buffers containing 5728 KB of memory
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21064-1 (pass 3)
tcasic0 at mainbus0
tc0 at tcasic0: 12.5 MHz clock
sfb (Smart Frame Buffer) at tc0 slot 6 offset 0x2000000 not configured
ioasic0 at tc0 slot 5 offset 0x0: slow mode
le0 at ioasic0 offset 0xc0000: address 08:00:2b:bf:d4:57
le0: 32 receive buffers, 8 transmit buffers
scc0 at ioasic0 offset 0x100000: console
scc1 at ioasic0 offset 0x180000
mcclock0 at ioasic0 offset 0x200000: mc146818 or compatible
bba0 at ioasic0 offset 0x240000
audio0 at bba0: full duplex, mmap
tcds0 at tc0 slot 4 offset 0x0: TurboChannel Dual SCSI (baseboard)
asc0 at tcds0 chip 0: NCR53C94, 25MHz, SCSI ID 7
scsibus0 at asc0: 8 targets, 8 luns per target
asc (53c94 SCSI) at tc0 slot 1 offset 0x0 not configured
fza (DEC FDDIcontroller 700 (DEFZA; fiber optic)) at tc0 slot 0 offset 0x0 not configured
scsibus0: waiting 2 seconds for devices to settle...
probe(asc0:0:0): max sync rate 5.00MB/s
sd0 at scsibus0 target 0 lun 0: <IBM, DDRS-34560, S71D> SCSI2 0/direct fixed
sd0: 4357 MB, 8387 cyl, 5 head, 212 sec, 512 bytes/sect x 8925000 sectors
probe(asc0:1:0): max sync rate 5.00MB/s
sd1 at scsibus0 target 1 lun 0: <SEAGATE, ST15150N, 0017> SCSI2 0/direct fixed
sd1: 4095 MB, 3712 cyl, 21 head, 107 sec, 512 bytes/sect x 8388315 sectors
probe(asc0:2:0): max sync rate 5.00MB/s
sd2 at scsibus0 target 2 lun 0: <SEAGATE, ST15150N, 0017> SCSI2 0/direct fixed
sd2: 4095 MB, 3712 cyl, 21 head, 107 sec, 512 bytes/sect x 8388315 sectors
probe(asc0:3:0): max sync rate 5.00MB/s
sd3 at scsibus0 target 3 lun 0: <DEC, RZ26     (C) DEC, 392A> SCSI2 0/direct fixed
sd3: 1001 MB, 2570 cyl, 14 head, 57 sec, 512 bytes/sect x 2050860 sectors
probe(asc0:6:0): max sync rate 4.16MB/s
cd0 at scsibus0 target 6 lun 0: <DEC, RRD43   (C) DEC, 0064> SCSI2 5/cdrom removable
IPsec: Initialized Security Association Processing.
root on sd0a dumps on sd0b
root file system type: ffs