First post, by lowlytech
Have a 5.25" drive that I am trying to get working as a DD/HD enabled 300/360RPM rotation speed. Apparently the drive I have gets a signal on pin 2 and all my moderish 16 bit I/O cards don't provide this signal. If I use the original floppy controller (epson equity ii+) it does work as expected with both DD and HD disks (you can hear and see the RPM change). However the original floppy controller doesn't have IDE and adding another controller with FDC /IO disabled is causing other conflicts.
So my main question is what is the point of the 300/360 RPM dual mode? When the drive is in HD only mode I can still read 360k disks. I thought it was the head/track size that made writing 360K disks a no-no and not the RPM speed.