Floppy drives inside the computer are already configured. But, sometimes, if you are installing a used drive, you may need to reconfigure it. Its manual would be required to configure.
Drive Select:
Modern PC floppy controllers support only two floppy drives in a chain. Therefore most modern floppy drives have only two choices. The drive you want to be Drive A: is set to the first drive select position and Drive B: is set to the second position. The jumper that controls this is usually called the DS jumper, while the options are labeled DS0 and DS1. However, the numbers themselves may vary from drive to drive.
Most drives are factory set to DS2, or Drive B: position. In order to use the drive as a drive A: you use a floppy ribbon cable that tricks the computer into using the drive as A. This is done with the use of a special twist in the cable that electrically changes the DS configuration of the drive after the twist. This twist, then, causes the controller to think the drive configured as B: is really configured as A: For this reason, during installation of a floppy drive, always make sure your Drive A: is located AFTER the twist on the floppy ribbon cable.
