Dos Application Problems - NEC PowerMate V486 Series Service Manual

DOS Application Problems

Hardware conflicts occur when two or more peripheral devices contend for the same signal
lines or channels. Conflicts between the sound board and another peripheral device may be
due to the settings of the I/O address, interrupt, or DMA channel. The sound board's factory
default settings are:
n
Audio Interface
Base address: 220H to 233H
MIDI Port I/O address: 330H to 331H
Interrupt: 5
8-bit DMA: 1
16-bit DMA: 5
To resolve hardware conflicts, change the hardware settings of the sound board or the ex-
pansion boards in the system if the expansion board is using the sound board's setting. To
change the DMA channel and interrupt settings (see Section 2, Setup and Operation). Table
Section 4-4 summarizes problems that may encounter when running from DOS:
Table Section 4-4 Sound Board DOS Problems
Problem
The installation program
cannot run
Maintenance and Troubleshooting
Cause
RAM memory might be less
than 420 KB in the system.
INSTALL.EXE requires 420 KB
of free memory to run properly.
Solution
To check the available
memory, enter MEM at DOS
prompt.
The "largest executable
program size" message on the
screen should be more than
430080 bytes. If you do not
have the available memory,
remove some of the resident
programs before running
INSTALL.
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