erin@ug.cs.dal.ca (Erin MacNeil) (11/02/90)
The original post : ----- Hi, a friend has a a problem, perhaps someone can help.. Problem: Tandy 3000NL does not recognise a 3.5 1.44 Meg drive. Equipment: Tandy 3000NL, with : 386sx Upgrade. Memory Upgrade (Currently 2 Megs) Mono Monitor & Herc. Card. HD/FD Controller. (IDE) IDE 40 Meg Drive. 1.44 Meg Drive. 360K Drive. Dos 4.0 The 1.44 Meg drive in question appears to be a Tandy, it has the following cryptic numbers written on it. "2A9" "8790145" "TB91871805", * ANY * Information on this drive will be helpfull. Story: Both the 1.44 and 360 were attached to the system board. but would not format disketts. Turning sw5 on the mother- board to the off position, and jumpering the HD/FD controller to enable the FD's and attaching them to the HD/FD controller as an attempt to remedy the original problem... The original cable did not have a twist in it and was too short to reach the new controller. A quick stop at the local PC shop brought back your standart FD cable with a twist in one end. The 360K works fine, and can format now alas the 1.44 no - go.. The new cable? Does Tandy use a weird type of cable.. I did notice there is no power plug on the 1.44 drive.. Mail replys (or post) I'll post a summary. The summary follow.. thanks again David. ------ From: David Eugene Dwiggins <dd2x+@andrew.cmu.edu> Subject: Re: TANDY 3000NL, FD/HD Controller and a 1.44M Drive that don't work. You must disable the floppy controller on the motherboard. I'm not sure of the jumper settings. The drive is a normal 1.44Mb floppy, but it gets its power from the motherboard. That's why there are holes in the original cable before you get to the second connector. You must add a power connector to the cable. Alternatively, you could turn the floppy controller on the card off and use the original one on the motherboard. Hope this helps, David Dwiggins PS. Make sure you add the holes to the cable. If you don't, you will short the power supply to ground, since the pins corresponding to those "holes" are grounded on a 5.25" drive. -- Internet erin@ug.cs.dal.ca Bitnet erin@dalac