At 16:32 -0600 3/30/07, Jules wrote:
Anyone know if NeXT monochrome slabs have dual SCSI
buses (one internal and
one external) or not?
I think not, don't know that for sure, but have pretty good evidence
- see below.
I've got one here that resolutely refuses to talk
to any
internal SCSI device [1], but will happily talk to (and boot from, if
necessary) external devices. In fact, if anything is plugged into the internal
bus at all then the system won't even boot from an external device.
I have seen a case where plugging in an external CD drive, with
passive terminator, but *leaving that drive turned off*, allows the
system to run normally from the internal drive, where it would
generate SCSI errors without the external drive in place. I didn't
have a SCSI terminator in 50-pin mini D to plug into the external
connector, but if I'd had one I would have tried it. I'd recommend
trying SCSI cable to external terminator, or cable to unpowered
external drive with passive terminator, and see whether that allows
the internal to work.
If that's productive, I'd play with the termination on the internal drive.
One other possibility is a bent pin on the internal drive or on the
connector, but I assume you checked for that.
It'd just be nice to get to the bottom of
what's
actually broken!
Absolutely. If you do figure it out, please report back - I'd like to
know what's causing this too, if it's a generic fault.
--
- Mark, 210-379-4635
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