If you have purchased one of our motherboard upgrade kits or Single Board Computers (002544, 002545, 002546), and are connecting it your original, you must connect it with a twist.
The twist must be at the Floppy Drive end with Pin 1 of the Floppy Drive connected to the ribbon cable at the side with the red stripe. Also, if your original Floppy Drive has a spade adapter, you must remove it for the motherboard kit or Single Board Computer to recognize it.
(two styles of spade adapters)
(ribbon with twist)