6300 disk I/O, internal ROMs

[Bill Pechter]

In article <2700001 at mwood.UUCP> jim at mwood.UUCP writes:
>
>The internal ROM setting is intended for Olivetti controllers...I tried
>it once (just for kicks!), and it would only recognize 10M out of a 20M
>disk. Actually, a 5:1 interleave is about right for a 6300. I've 
>compared a variety of drives (using a WX-1 controller), and 5:1 always
>gave the best results.

Forgive me Jim, but that's BULL@#$.  The internal roms work fine with the WD.
The only thing you have to do is rejumper the controller.  The internal roms
(1.21 and 1.43) have drive tables in a different order than the WD.  It's
in the docs for the 1.43 upgrade rom kit and in the PC6300 reference manual
(Comcode 405235359 ATTIS Manual no 999-300-205IS.)

This is how the rumors that the 6300 is not an IBM compatible, or that it's
different to work with get started.

Disclaimer: I do not work for AT&T.  I've never worked for AT&T.  The Olivetti
            based PC's they sold are very good.  Their support and support
            policies are lousy.

-- 
Bill Pechter -- Home - 103 Governors Road, Lakewood, NJ 08701 (201)370-0709
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