Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site utcs.UUCP Path: utzoo!utcs!tj From: tj@utcs.UUCP (tj) Newsgroups: net.micro.pc Subject: Re: help: second drive add-on problems! Message-ID: <744@utcs.UUCP> Date: Thu, 11-Jul-85 13:06:22 EDT Article-I.D.: utcs.744 Posted: Thu Jul 11 13:06:22 1985 Date-Received: Thu, 11-Jul-85 14:22:11 EDT References: <993@ucbtopaz.CC.Berkeley.ARPA> Reply-To: tj@utcs.UUCP (tj) Organization: University of Toronto - General Purpose UNIX Lines: 18 Summary: At the risk of being the 7000'th person to tell you this, have you got the drive jumpers setcorrectly. With two drives and an un twisted ribbon cable you must have drives one and two jumpered as drive 1 and drive 2 respectively. If you have the ribbon cable that is not twisted then the drives are both jumpered the same. From what you say about it working fine as drive one alone it then Cassette Basic when both are plugged in it sounds like the two are fighting. If it works fine as drive one AND your ribbon cable has the twist in it then just plug the original in as well WITHOUT CHANGING ANY JUMPERS ON THE FLOPPY DRIVE. If the ribbon cable is not twisted then you have to change one of the drives to act as drive 2. The twist I mention is really obvious. the ribbon cable comes from the controller card, to a drive connector then to the second drive connector. If between the two drive connectors the ribbon cable is cut and four conductors are flipped over then it has the twist. t.jones