Xref: utzoo comp.sys.ibm.pc:42670 comp.sys.att:8565
Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!att!dptg!pegasus!psrc
From: psrc@pegasus.ATT.COM (Paul S. R. Chisholm)
Newsgroups: comp.sys.ibm.pc,comp.sys.att
Subject: Re: How effective is a V30 on an XT (8086) clone?
Summary: V30 + AST EEMS board + software patch = working system
Message-ID: <4418@pegasus.ATT.COM>
Date: 23 Jan 90 15:07:07 GMT
References: <19163@netnews.upenn.edu> <7703@hubcap.clemson.edu> <1879@neoucom.UUCP>
Organization: AT&T Bell Laboratories
Lines: 17

In article <1879@neoucom.UUCP>, wtm@neoucom.UUCP (Bill Mayhew) writes:
> There are some slight bus timing differences that make the V30
> incompatible with the AT&T 16-bit memory expansion card.  The AT&T
> card is the same as the card manufactured by AST for the PC6300.

Not quite, if you're talking about the Enhanced Expanded Memory board.
(This EEMS board is very much like an EMS 4.0 board, as I explained in
an earlier posting [which I didn't keep a copy of, so don't ask].)  The
board was designed to work slightly differently in an AT&T PC 6300 and
an AT&T PC 6300 PLUS.  The software "looks at the computer's navel" to
decide which it is, and a 6300 with a V30 "looks" like a 286 to the
software.  There was a patch that corrected this.  Sorry, I haven't the
faintest idea where to get it from.  Can anyone pick it up from here?

Paul S. R. Chisholm, AT&T Bell Laboratories
att!pegasus!psrc, psrc@pegasus.att.com, AT&T Mail !psrchisholm
I'm not speaking for the company, I'm just speaking my mind.