scsi termination message

[Tom Holroyd <tomh nibh go jp>]

I get this when I boot my AlphaPC164LX:

kernel: (scsi0) <Adaptec AHA-294X Ultra SCSI host adapter> found at PCI 5/0 
kernel: (scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs 
kernel: (scsi0) Warning - detected auto-termination 
kernel: (scsi0) Please verify driver detected settings are correct. 
kernel: (scsi0) If not, then please properly set the device termination 
kernel: (scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted 
kernel: (scsi0) during machine bootup. 
kernel: (scsi0) Cables present (Int-50 NO, Int-68 NO, Ext-68 YES) 
kernel: (scsi0) Downloading sequencer code... 419 instructions downloaded 
kernel: scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.10/3.2.4 
kernel:        <Adaptec AHA-294X Ultra SCSI host adapter> 

Now, it never prompts me, and ctrl-a doesn't seem to do anything.
I'm guessing that only works on an x86?  In any case,
	A) How can I make this message go away?
I have both an external MO disk and a regular external HD (in addition to
the internal one), and there's a terminator on the end of the chain.
(Removing it has no effect.)  Are there some jumpers I need to fiddle with
on the inside?
	B) Would this explain why my machine locks up sometimes?
I've gotten a machine check, a bus reset, and random lockups during
disk access (though it has even happened during _floppy_ access).  But
this is the only thing I can think of.  It never mattered before,
with 2.0.x, but 2.1.x/2.2.x seems to be a bit more picky.

Dr. Tom Holroyd
I would dance and be merry,
Life would be a ding-a-derry,
If I only had a brain.
	-- The Scarecrow