31982Notes on floppy diskette writing
- Aug 8, 2013I've had to write out some diskette images for some folks recently, and
thought I should pass on a couple of things. I typically use Dave
Dunfield's Imagedisk (IMD) utility to read and write diskette images, and
there's a somewhat dated list of compatible motherboards and controllers
on his site:
Based on that, I had found an Abit KT7A-RAID motherboard on Ebay and
installed it in an old tower case. I used that for quite a while, before
I discovered that it would NOT write diskettes in 500K FM mode, making it
useless for writing SD 8" diskettes.
The KT7A has an ISA slot, and I had a couple of Adaptec 1542
controllers on hand. I disabled the onboard floppy controller and tried
both a 1542B and a 1542CF, and neither would work right. It appeared to
be a problem with the IRQ for the floppy controller, which could not be
assigned to the ISA slot. So, back to Ebay to look for another
I finally found an Abit KV8PRO, which was also on Dave's list. This
one had a 1.8GHz Athlon 64 CPU, but no ISA slots. I ran the TESTFDC
program from IMD and it passed all but the double-density 128-byte sector
tests, which was to be expected. I haven't yet found a machine that uses
that format. The KV8PRO controller was able to read and write 8" SD
images with no problem.
The Catweasel MK4+ seems to work okay with the KV8PRO, but I'll need to
do some more testing.
If you don't already have one, get one of John Wilson's FDADAP boards
to connect your 8" drives:
Mike Loewen mloewen@...
Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/
- Next post in topic >>