Toshiba notebook : floppy not responding

I have a Toshiba 420CDT notebook.
In this, you must switch between the CD-Rom and the floppy drive.
For some times, the floppy drive has stopped responding in any OS.
When booting, a message appear for a short time : FDC failure.
Can anyone tell me whether it is the floppy drive or the
internal controller who is really in fault ?
Any idea on how to fix it ?
aleroyAsked:
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billogleCommented:
It can be the internal controller (most likely) but if you have another device that uses the internal controller's interupt (6) or DMA (2) and it malfunctions, you will the fdd controller failure error.  When you reboot the error situation is cleared.  Checka the CD and see if it has been changed to one of these setting or the floppy has been changed from its original setting.

I use WINPROBE 4 but there are several other programs on the market that will preform the necessary diagnostics.

You can email me at bill_ogle@reborn.com if you have further questions.
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