Installing the Floppy Disk Drive
You may want to do away with the floppy disk drive (FDD) altogether but experience shows that it sometimes do come to great help in crucial situations like computer crashes. Or if your Windows has become too sloppy you may need it to start your computer with a startup boot disk. So the days of the floppy drives are not over yet.
Nowadays, however, since you get bootable Windows CDs and if you have one of them you may just choose not to install an FDD. Anyway, it is still always a good idea to have a floppy drive at hand in case you ever require it.
Ensure that one of the 3.5-inch bays in you case is open.
If your case came with rails for the floppy drive, attach them to the sides of the drive and slide the drive into the front of the computer until it clicks into place. Rails are small metal pieces which clip or screw on the sides of the drive and allow it to be inserted and removed from the case with minimal effort.
Otherwise, slide the drive into the front of the computer until the faceplate of the floppy drive is flush with the front bezel of the case and the screw holes along the sides of the drive line up with the openings in the case. Screw the floppy drive in securely on both sides.
Plug in the floppy power cable, that came out from the SMPS, carefully, since it is quite possible to miss one of the connectors, which will quite possibly cause some damage when the computer is powered on. Floppy drive power connectors are keyed in most cases, but if not, the red wire should be connected to the pin designated as 1 on the surrounding PCB.