On Wednesday 22 February 2006 20:21, Gene Heskett wrote: > On Wednesday 22 February 2006 19:12, Wolfgang Gill wrote: > >On Wed, 22 Feb 2006 18:48:24 -0500, bobgoodwin wrote > > > >> Does it matter which forty pin connector plugs into the master and > >> slave drives? > >> > >> I have come to the realization after struggling with some problems > >> that there are a lot more wires in the ribbon cable than there are > >> connector pins. > >> > >> I now see that Maxtor designates the connector at the end of the > >> cable as the "master" and the one just below it as the "slave." I > >> presently have only one drive jumpered as master with FC4 running on > >> it and it ;doesn't seem to care which data cable connector is > >> attached to it, but when I put in the second drive, jumpered as > >> "slave" the computer won't boot. I decided the drive was bad but > >> now I'm wondering? It may be the wrong connectors plugged into the > >> drives. > >> > >> I thought "cable select" cables had wires obviously crossed in the > >> ribbon cable but that may not be true with this 80 wire ribbon? > >> > >> Can someone clear this up for me. > >> > >> Thanks. > >> > >> Bob Goodwin Zuni, Virginia > > > >Nope it doesn't matter. Drive selects are done with jumpers on the > > drive. All IDE 40/80 pin cables are straight through, so the drive > > itself govens whether it's master or slave. When I only have one > > drive, I use the middle connector, and hide the other one out of the > > way, to give me better casing air flow. > > To do so is asking for data errors. In the IDE system, its assumed that > the drive jumpered as master will do the termination of the cable also, > and to do that properly requires that it be on the end of the cable. > Any cable hanging out the far end of the signal path is an electrical > mirror, which if not loaded with the cables characteristic impedance > with an ohmic load, will make the edge of the data signals ring badly, > possibly corrupting the data. > > This is in fact almost as critical as a scsi cable setup, where the > common practice is to do it right, then sacrifice something to the gods > just for insurance. > > >Usually (Depending on brand of drive), the master drive is jumpered, > > and the slave drive isn't. > > > >Wolf > >-- > >Open WebMail Project (http://openwebmail.org) > > -- > Cheers, Gene > People having trouble with vz bouncing email to me should add the word > 'online' between the 'verizon', and the dot which bypasses vz's > stupid bounce rules. I do use spamassassin too. :-) > Yahoo.com and AOL/TW attorneys please note, additions to the above > message by Gene Heskett are: > Copyright 2006 by Maurice Eugene Heskett, all rights reserved. Mine is blue, black, and gray. Blue to the mother board, black (farthest from mother board), and gray (in the middle). -- Some people have convictions. Some people have opinions I think I'll have a cheeseburger!
