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So what I've concluded:
(1) The Quadra can see that HDs are connected to the internal and external SCSI busses, but it treats the drives as unrecognizable and fails to mount them.
(2) The CD-ROM drive behaves the same way. A known good external Apple CD300 drive acts the same - will either spit out the installer CD or tell me that the disk is unrecognizable and ask me whether I want to initialize it (which is strange to me since it is a CD).
(4) It's NOT a defective SCSI cable.
(5) It doesn't seem to be a termination issue since the HDs work with my IIci and G3 w/o messing with terminator power or jumpers. - But maybe the Quadra is THAT picky?
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I think that the macintosh works as the SCSI Controller seen the HD; even the External SCSI CD300 works .. but probably is needed to check if :
- Was the HD inside the SCSI Chain or did you connect the SCSI drive 300e as first unit doing the termination ?
In my opinion you have a not working HD inside the macintosh, discpnnect it and then try the working cd 300e inserting a termination in the back of it. Then try to see if in this way the macintosh see it starting from the Floppy disk drive that is also working correctly fro what i read...
Is only an idea
Michele
So what I've concluded:
(1) The Quadra can see that HDs are connected to the internal and external SCSI busses, but it treats the drives as unrecognizable and fails to mount them.
(2) The CD-ROM drive behaves the same way. A known good external Apple CD300 drive acts the same - will either spit out the installer CD or tell me that the disk is unrecognizable and ask me whether I want to initialize it (which is strange to me since it is a CD).
(4) It's NOT a defective SCSI cable.
(5) It doesn't seem to be a termination issue since the HDs work with my IIci and G3 w/o messing with terminator power or jumpers. - But maybe the Quadra is THAT picky?
------
I think that the macintosh works as the SCSI Controller seen the HD; even the External SCSI CD300 works .. but probably is needed to check if :
- Was the HD inside the SCSI Chain or did you connect the SCSI drive 300e as first unit doing the termination ?
In my opinion you have a not working HD inside the macintosh, discpnnect it and then try the working cd 300e inserting a termination in the back of it. Then try to see if in this way the macintosh see it starting from the Floppy disk drive that is also working correctly fro what i read...
Is only an idea
Michele