Computer Hardware
What is the most likely cause of an "FDD controller Failure" error message?

None of these
you installed the floppy disk drive cable backward
your computer's floppy drive is defective
you forgot to flash CMOS
you did not set the jumper on the floppy drive to drive A

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Computer Hardware
Whenever you have a hardware resource conflict, it will more likely be an IRQ conflict rather than an i/o conflict because:

there are a lot more I/O addresses than IRQs.
I/O addresses cannot conflict
the BIOS sometimes has more of a problem controlling IRQs
software tends to mess up IRQs
software tends to correct I/O conflicts

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