Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!cs.utexas.edu!csc.ti.com!ti-csl!m2.csc.ti.com!choctaw!peterson
From: peterson@choctaw.csc.ti.com (Bob Peterson)
Newsgroups: comp.os.msdos.desqview
Subject: Re: QEMM & Adaptec 1542
Keywords: Bus Master Blues
Message-ID: <1991May9.035013.20234@csc.ti.com>
Date: 9 May 91 03:50:13 GMT
References: <646@bigfoot.first.gmd.de>
Sender: usenet@csc.ti.com (USENET News System)
Organization: TI Computer Science Center, Dallas
Lines: 31
Nntp-Posting-Host: choctaw.csc.ti.com

In article <646@bigfoot.first.gmd.de> tmh@prosun.first.gmd.de (Thomas Hoberg) writes:
>I got a 1GB SCSI disk on my i486, some of which is used for DOS. I can't live
>without QEMM, but it presents some problems for a bus mastering controller like
>the Adaptec.
>					Other solutions like a device driver
>written by Roy Neese of Adaptec or the ASPI driver swollow up even more.
>Has anybody got a better idea? Is there a Windows or QEMM specific device driver
>for the Adaptec? 
>
>-- tom 

  I run with the following lines in my CONFIG.SYS, in support of an
Adaptec 1542 and a 330MB Miniscribe drive.

DEVICE=C:\DRIVERS\QEMM.SYS ... parameter list
DEVICE=C:\DRIVERS\LOADHI.SYS C:\DRIVERS\ASPI4DOS.SYS /D
DEVICE=C:\DRIVERS\LOADHI.SYS C:\DRIVERS\ASPIDISK.SYS /D

  With the drivers loaded high, I lose no low RAM at all!  I installed
this configuration about 6 months ago, and have had no problems since. 
Before using the drivers, I used the QEMM DMA parameter, which also
seemed to work.  Oh, the Adaptec controller is secondary, with the two
drive partitions labeled G: and H:.

    Bob


Bob Peterson                Compuserve: 70235,326          Expressway Site,
Texas Instruments           Internet: peterson@csc.ti.com   North Building,
P.O. Box 655474, MS238      Landline: (214) 995-6080         2nd Floor,
Dallas, Texas, USA 75265                                      CSC Aisle C3