1 Apr
2008
1 Apr
'08
10:27 a.m.
Date: Tue, 1 Apr 2008 10:47:25 +0200 (CEST)
From: Christian Corti
The 8473 directly supports four drives, so you can do
the "trick" a second
time for a fourth drive. And even some motherboard Super I/O chips have
support for four drives, the outputs are simply not used.
My needs and the number of spare conductors on the cable
simultaneously gave out with 3 drives. Somewhere in my collection
I've got a controller (may not even be SCSI; could be ESDI or
MFM/RLL) that had a jumperable option to drive 4 floppies from a
single cable by using the drive select jumpers and a common motor
control line. The two downside issues are that your drives have to
have 4 drive selects (or you had to be clever with your cable twists)
and when one motor comes on, they all do. Better to use two headers
and two cables, IMOHO.
Cheers,
Chuck