M-AUDIO DMAN - Manual (Page 49)

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Windows 95 Troubleshooting
If the installation has not been successful or if Windows ‘95
cannot resolve one or more hardware resource conflicts, the
devices affected will be highlighted (note the exclamation mark in
the icon) in the Device Manager page as discussed in the “System
Properties - Device Manager” section of this manual. In theory,
this should never happen in a fully-compliant, Plug & Play (PnP)
system. However, there are a couple of circumstances in which it
may:
1. There are not enough IRQs and/or DMA channels available
in the system to support all the installed hardware.
2. Some legacy devices (older ISA cards that are not PnP
compliant) may exist in the system. Because the PnP BIOS
has difficulty in identifying and configuring these legacy
devices, it cannot adequately configure and resolve conflicts
between the PnP and non-PnP devices.
In (1) above, you usually have no choice but to remove one or
more cards from the system. DMAN offers the PnP system some
alternatives when resources are low. One is to run the digital
audio in half-duplex mode instead of full-duplex. This reduces
the DMAN DMA channel requirements from two channels to
one. Also, the MPU401 device IRQ may be disabled. In this case
you will lose your ability to receive MIDI input, but you may still
use the MIDI output for playback.
In (2) above, you will need to do some detective work to find out
where the conflicts are taking place, then modify the driver
settings for the conflicting device. Double-clicking on the
highlighted device will give more details as to the problem
encountered. See the section on Windows 95 Driver
Configuration for more information on this topic.
Problem: Can open the Windows 95 WSS record mixer but can’t find the
playback mixer or vice-versa.
Possible Cause: Change between the two by selecting “Options,
Properties” from the mixer’s menu. See the section on Windows 95
Mixer for more specific information.
Problem: A 3rd party Windows digital audio program does not play or
record to/from the DMAN.
Possible Cause 1: The DMAN Audio driver is not properly installed.
Install/reinstall all DMAN audio drivers (see Windows 95 Software
section).
Possible Cause 2: You have not selected the DMAN audio driver from
your application. Many 3rd party applications require you to select a