Hello,

completed lately my DOS machine with additional 1.2 MB 5,25" FDD for
occasional use of my old diskettes. So I have 3,5" FDD as drive A: and
5,25" FDD as drive B: now.

But there is a problem: I can only access the drive A: - never both drives
on a whim. So to access 5,25" drive I have to "swap drives" in BIOS setup
first, and only then I can read that bigger diskette.

Every access attempt to diskette in actual drive B: - regardless whichever
drive I selected as B: at the moment, that bigger or smaller one -  results
in "General failure reading drive B".

So (momentary) drive A: = always OK, drive B: = always "general failure".

Anyone met such strange problem and perhaps knows the solution?

5,25" floppy is a Chinon FR-506, verified its jumper settings, seems OK.
Tried to play with these jumpers anyway, no desired effect
-- 
regards,
Zbigniew


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