Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!van-bc!rsoft!mindlink!a516
From: a516@mindlink.UUCP (Jordan Melville)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Computer slow since installation of SCSI drive
Message-ID: <4084@mindlink.UUCP>
Date: 9 Dec 90 01:22:04 GMT
Organization: MIND LINK! - British Columbia, Canada
Lines: 38

> 
> hd7x@vax5.cit.cornell.edu writes:
> 
> Msg-ID: <1990Dec9.050509.1470@vax5.cit.cornell.edu>
> Posted: 9 Dec 90 09:05:09 GMT
> 
> Person: Sanjay Aiyagari
> 
> In article <4076@mindlink.UUCP>, a516@mindlink.UUCP (Jordan Melville) writes:
> > I recently got a new Quantum 210Meg SCSI drive, and notice that
> > since I got the drive, the video output has been substantially
> > slower (to a level where it is visibly noticeable, I can see screen
> > updates lag behind what they used to). Norton's SI still returns
> > [... rest of my original message deleted ...]
> 
> This sounds strange, but one possibility (I'm not sure but it is possible) is
> that the new hard disk controller is causing a conflict in the C000/D000
> areas
> of memory, causing the VGAWonder to use 8-bit ROM access, rather than 16.  If
> you are using video RAM shadowing, then this is not the problem; if you are
> not, then try using video RAM shadowing.  This will copy the ROM into RAM and
> will ensure it is being accessed 16 bits at a time.
> Sanjay Aiyagari (hd7x@vax5.cit.cornell.edu)

The card comes shipped with its address range set at CA00:000-CA00:1FFF, with
it settable to use C800:0000-C800:1FFF, CE00:000-CE00-1FFF, or
DE00:0000-DE00:1FFF. Would that be the problem? Which would be the best to
switch to to fix the problem?

Jordan.
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"We want the world and       UUCP: {uunet,ubc-cs}!van-bc!rsoft!mindlink!a516
 we want it now!" - The Doors     a516@mindlink.UUCP
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