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Network Support Encyclopedia 13
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Network Support Encyclopedia (Novell Inc.)(1991).ISO
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qswitc.txt
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1991-10-23
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QEMM Switches
Software switches that might help some programs run correctly on Access
Server. These switches go next to the INCLUDE and EXCLUDE commands in the
CONFIG.SYS file.
C386S
Identifies the computer with which you are using QEMM as a Compaq 386S.
You need to use this switch only if the setup program you are using on your
Compaq 386S is previous to version 6.02
DB=xx
Purpose: DISKBUF - Lets you specify the size of the disk buffer. Use it
only if you have a SCSI hard drive.
Because of the way SCSI hard drives access memory, QEMM's normal direct
memory access (DMA) buffering method is not adequate. Use this parameter
to specify the size of the buffer to use. The default is about 12k, the
number is always in kilobytes.
LD
Purpose: LOCKDMA - Tells QEMM to disable interrupts during DMA processing.
Might be needed by some applications.
NRH
Purpose: NOROMHOLES - lets you disable QEMM's automatic detection of unused
memory addresses in ROM, called ROM holes. Many system BIOS chips leave
large areas of memory unused, which QEMM usually tries to detect
automatically. However, this auto-detection scheme sometimes does not work
correctly. If some system functions don't work properly when you first
install QEMM and continue to give you problems as you are using your
computer, try specifying this parameter to see if it corrects the problems.
NOSH
Purpose: NOSHADOWRAM - Tells QEMM not to use shadow RAM. Computers with
the Chips & Technologies 386 ROM set or the NEAT chip set put 386k of
reserved memory in a region in low memory referred to as "shadow RAM."
Typically, QEMM determines if your computer has shadow RAM capability and
then makes use of it. If QEMM cannot detect it, you need to use this
parameter
NT
Purpose: NOTOPMEMORY - Instructs QEMM to overlook top memory in your
computer and not to use it. Some computers put 384k of memory just below
the top of the 16Mb address space. This memory is referred to as "top
memory." When QEMM starts it tests to see if there is any top memory
available; if there is, QEMM will try to make use of it and some times
certain 386s need this area for its own uses.
NX
Purpose: NOXBDA - Tells QEMM that is should not relocate the extended BIOS
data area, which is a location of memory mapped at the 639k location. On
certain computers, QEMM automatically moves this area to addresses used by
QEMM. A program which incorrectly assumes that the extended BIOS data area
is at its original place in memory won't work properly. Use this
parameter to disable the remapping of this area so the program will work
correctly.
U8
Purpose: UNUSUAL8042 - Tells QEMM that your computer has a nonstandard
keyboard controller. The 8042 keyboard controller is used in most
IBM-compatible computers.
If you start having problems typing characters from your keyboard it is a
good possibility that you have an unusual keyboard controller, and you
should use this parameter.
UX
Purpose:UNUSUALEXT - tells QEMM that the method used to determine the
amount of extended memory is a nonstandard method. If your computer does
not start correctly with QEMM, using this parameter might fix the
problem.
The settings most likely to prove helpful with Access Server are:
UX NT NX NRH NOSH