f89ba@rigel.efd.lth.se (09/19/90)
I have heard that there is a slight difference between 3.5" disk drives (perhaps between 5.25" too) used in AT class computers and those used in PC/XT machines. If my information is correct pin 34 on the signal connector would be used for different purposes. Is this true and could someone describe the difference? The other day I purchased a TEAC 3.5" 1.44 MB (model FD-235HF) unit which I use in my clone AT. Should I worry about having the wrong version (that is XT, if there IS a difference) and how can I tell which one I've got? (Label, part no. etc.) Also, if anybody has any information on the jumper settings (meaning, defaults etc.) for this drive OR TEAC's 5.25" 1.2 MB unit I would appreciate if he/she would share this knowledge with me. Oh, one more question! What about terminating resistors on these two drives? They are daisy-chained to my controller and I have not removed any resistors since they are all soldered. Should there be any removable term. resist.? Is there a risk of overloading if I don't handle this properly? Please respond with MAIL! Thanks in advance Bengt Ask, Lund Institute of Technology, Lund, Sweden