My reply is below. Ron wrote: > > SCSI is much simpler than you all think it is: > > The SCSI chain needs termination at each end. > > Normally the disk is at 0 (terminated) and the CPU is at 7, also terminated. > > Anything in between should not be terminated. > > If you reassign the disk to 4, 5 or 6, then the CD at 3 needs to be > terminated, and the disk un-terminated > > ron > > > > >*I checked two other CD drives and saw termination jumpers on them. > >That seems to fly against what has been discussed, however, I re-read > >Glen's post, that Apple CDD's have no termin.jumper, only Term.Power, > >and whether it is On or Off is okay. I saw HD pin prs. TE and TP; termin. > >-enabled, and termination-power. Can someone explain the differences? > >Some HD's are terminated w/resistor packs, parallel w/SCSI connector > >(no jumer pins.. oh boy); watch for such when using two devices in the > >same chain, to avoid double termination. At least, that is what I think. > > > Yeah Ron, I know we can complicate things when questions remain, but before I could balance a bike, or make change, it was similar ;o)
I have extra HD's and like to give them ID's which don't conflict with the primary stuff, so when termination of the CD drive was discussed, one said it doesn't have changeable termination (only Term.Power). I moved CD to #6/internal, to keep lower ID's open, and I removed the TP jumper- is it the same as TE/term.-enabled, if jumper is on? Makes no diff., er whut? I'm clear about termination on both ends of each chain, one end being Mac. When I have most answers, I'll prob. go fishing instead of MacTinkering. Thanks, Jim Kilp -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
