bugoff2@ucbtopaz.CC.Berkeley.ARPA (Jim Bradley) (07/07/85)
I'm a Unix buff, or I wouldn't be posting this, but my dad is a business type and an IBM slave and needs some advice: He bought a single-drive IBM PC at the end of it's first year. Last month he bought from Jade, in California, a Tandon drive to be his second drive. The new drive works fine as a drive one. But in the dual drive configuration with the dip switches set for two drives and the jumper pulled from the first drive and a DOS disk in drive one, the system starts up in cassette BASIC. IBM can only suggest major reconstructive surgery. Any suggestions would be appreciated (in helping bridge the generation gap). Jim Bradley
tj@utcs.UUCP (tj) (07/11/85)
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