1.2M HD / 300kbps / single-density
dave06a at dunfield.com
Mon Mar 19 05:35:17 CDT 2007
> Dave, that's very strange. I just went and tried it on one of my
> "regular" systems, a box with an Intel TC430HX mobo in it. The
> controller on this board is a National PC87306B (serial/parallel,
> clock, floppy, IrDA and keyboard) that does just fine with FM. I
> repeated on another "regular" box with an Intel PD440FX board (uses
> the NS PD87307) with the same results.
Thanks for the response. So you have not seen this before (single-
density working at 250kbps but not 300kbps)?
The board in question is an Aopen AP5T which has an SMC FDC37C669
I just tried the same drive on another system with an NS PC87306
controller, and it does work pefectly at 300kbps.
The question is - how common is this? - I'll have to dig out some
of my other systems that do SD and test them. Problem is - most of
them only support one physical FDC so they only have a 3.5 installed.
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
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