The usual sign of the floppy drive cable upside down or off by row or pin is the lights stay lit.
My systme contains to floppy drives, a 1.44mb 3 1/2 as well as a 5 1/4. Both drives worked fine until I recently installed a second hard drive to use as storage. Both floppys stay lit, and neither are read on start up. Have checked and changed CMOS and tried every config possible. Without seek in CMOS both drives appear in My Computer, but neither are able to read disk. When I select seek in CMOS, neither floppy shows in My Computer, but instead I get an Icon for Removable disk A:, not as it should be 3 1/4 floppy A:. Can anybody provide an answer as to how I can remove the Removable disk A:, because it does not appear in the device manager anywhere.