Floppy Drive Advice
cclist at sydex.com
Mon Sep 27 15:46:16 CDT 2010
On 27 Sep 2010 at 21:01, Tony Duell wrote:
> I think the problem is that many modern motherboards don't have the
> pins of the second drive select and MotorOn signal wired up. Whether
> the signals exist on accessible pins of an I/O chip I don't know (if
> they do, it may be possible to add jumper wires, but some people are
> afraid of soldering to motherboards).
In most modern motherboards,the FDC is tucked into a corner of the
Southbridge chip (or on the combo south/north chip) and the signals
for only one floppy are materialized. I've seen this on a lot of not-
so-modern Pentium 3 booards, so it's not a new trend.
What was the Intel(?) chipset that could be configured to support an
additional floppy on the parallel port? I recall being a little
surprised to see that, but now I don't recall the specifics.
There's also at least one chipset that allows for an additional drive
by decoding the motor and drive-select lines (probably something like
"selected, but motor off), but I don't recall the details either.
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