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From: steve@wattres.UUCP (Steve Watt)
Newsgroups: comp.unix.xenix
Subject: Re: Best Chips & Technologies Setup
Message-ID: <331@wattres.UUCP>
Date: 2 Feb 90 06:58:11 GMT
References: <1379@serene.UUCP>
Reply-To: steve@wattres.UUCP (Steve Watt)
Organization: Steven Watt, Consultant
Lines: 21

In article <1379@serene.UUCP> rfarris@serene.uu.net (Rick Farris) writes:
>
>Would those of you that have 386s with the C&T chipset mind telling
>us about your extended set-up?
>
>Should shadow ram be enabled?  Does page-interleaved mode work well
>with SCO Unix/XENIX?  Are there any other important parameters?
>

  I have a Rose Hill 386/25 running SCO UNIX V/386 and Open Desktop.
The most interesting configuration speedup was raising the DMA clock from
SYSCLK/3 to SYSCLK/2.  This DRAMATICALLY improved the floppy transfer rates.
Interleaved mode works well.  There is no way to get the RAM from shadowing
back into general use, even with shadowing off, so I just leave it on (the
memory test runs better than twice as fast, signifigant for an 8MB system).
Otherwise, shadowing makes no difference, since SCO doesn't use the BIOSes
at all.  (They don't work in protected mode)

-- 
Steve Watt
...!claris!wattres!steve           wattres!steve@claris.com also works.