on 4/16/12 12:09 PM, [email protected] at [email protected] wrote: > The 8600 has two SCSI buses: a 10 MB/sec internal bus and a 5 MB-sec > external bus. Each bus must be separately terminated. > > The standard internal cable is 1-wide, as is the external bus, although > the external bus is 25 pins and not 50. > > In any case, SCA drives are 2-wide and you are expecting the drive to > auto-negotiate to 1-wide. > > Not all adapter cards are properly designed to allow the drive to > auto-negotiate down to 1-wide from the default which is 2-wide.
I gather, from searching online, that this isn't the most cooperative setup, but apparently it works for some folks. Also, yes, that some adapter cards are better than others. Also that Drive Setup may not see these drives, but other utilities may, eg SCSI Probe (didn't work, nor Mt. Everything, nor FWB mounter) After failing to get the SCA drive to mount on the internal bus, I switched over to an external SCSI enclosure connected to the external bus, for which I have a terminator. This successfuly mounts a different 50 pin SCSI drive, so I know the enclosure and the terminator are working properly. I still don't know how I need to set the jumpers correctly on the SCA adapter card - assuming, for the time being, that the card may work if correctly configured. It's also been stated earlier in this thread NOT to set jumpers on the HD itself for the SCSI ID number. Incidentally, people are asking for some ridiculous prices for 50-pin SCSI drives on eBay. "Legacy" apparently becomes "antique" at some point. I was advised earlier on this forum that SCA drives were a workable option. Barry -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
