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From: dan@wystan.bsd.uchicago.edu
Newsgroups: comp.os.msdos.misc
Subject: Re: DOS 5: Problem with EMM386.EXE and 1542B controller
Message-ID: <0094A790.29746440@wystan.bsd.uchicago.edu>
Date: 22 Jun 91 01:36:56 GMT
References: <1991Jun17.114812.11279@jet.uk> <80495@eerie.acsu.Buffalo.EDU>,<1991Jun21.232638.482@mnemosyne.cs.du.edu>
Sender: news@midway.uchicago.edu (NewsMistress)
Reply-To: dan@wystan.bsd.uchicago.edu
Organization: Dept.of Neurology, Univ.of Chicago, USA
Lines: 38


>Installing DOS 5 on a machine with a 1542B SCSI controller,
>I have a problem with EMM386.EXE. It doesnt work. System
>crashes as soon as you try to put something in a UMB, such
>as loading RAMDRIVE using devicehigh. Similar problem also
>seen with a 1740 EISA SCSI.


	The problem with DOS 5 and SCSI controllers on my box seems to be with
SMARTDRV.  You can't DEVICEHIGH= either SMARTDRV or the SCSI driver unless the
other driver is already loaded into _conventional_ memory.  If I try to load
either in the UMA before the other is active low it hangs the system on
reboot. I guess it makes sense since they're both buffering devices and
probaly try to compete with each other for memory.  The config.sys has to go
in one of these two orders: 

	1.  DEVICE=your SCSI driver
	    DEVICE=HIMEM.SYS
	    DEVICE=EMM386.EXE 
	    DEVICEHIGH=SMARTDRV.SYS

	or,

	2.  DEVICE=HIMEM.SYS
	    DEVICE=EMM386.EXE
	    DEVICE=SMARTDRV.SYS
	    DEVICEHIGH=your SCSI driver

	The SCSI driver for my card (a 1540A) is smaller than SMARTDRV so I've 
been using the first of these two, but I have done it the other way with no 
problems.  Unfortunately, until Adaptec issues some new drivers it looks like 
we're stuck in lower memory.  (P.S. - If anybody does know a way to get both 
drivers into the UMA or if Adaptec has issued new stuff, _please_ let us know!)

					Good Luck,
					Dan Rohwer-Nutter
					dan@wystan.bsd.uchicago.edu
					Univ. of Chicago - Neurology