M-Audio Delta DiO 2496 [20/24] Troubleshooting

Troubleshooting

This section addresses potential problems that can occur in all operating system

environments, with emphasis on hardware troubleshooting. Within the PC environ-

ment there are a limited number of hardware resources (Addresses, IRQs, and DMA

channels) available for use. Since audio cards require many resources, most audio

card installation problems arise from unavailable or improperly set resources.

NOTE: The Delta DiO does not require any DMA channel

resources and requires only one IRQ.

If a device in Windows’ Device Manager list has a resource conflict with another

device, a yellow exclamation point will generally appear on top of the icon next to

that device. There can be several ways to approach this.

By highlighting an item with a problem, then clicking Properties (or double-clicking

the item), you will open up a properties sheet for that device. Selecting the

Resources tab from within the Properties dialog box will allow you to view

resources, plus view possible conflicts by highlighting each item (done by clicking

on it) one by one and examining the "Conflicting resource list:" at the bottom of the

box.

Sometimes it is possible that there is a resource problem that is not showing up in

the conflicting resource list or as a yellow exclamation point in the Device Manager.

If you have any doubt about the configuration of your device (or just want to dou-

ble-check), you can view all of the devices and their associated IRQs by highlight-

ing "Computer" at the top of the Device Manager list and clicking Properties (or

double-click "Computer"). This will present a dialog box with IRQ numbers on the

left, and devices on the right. An entry that reads "IRQ Holder for PCI Steering"

along with an installed PCI device (such as the Delta DiO) is normal. If you see

another device showing up on the same IRQ as the Delta DiO (such as a video card,

SCSI adapter, or USB Host Controller), then the Delta DiO has a conflict and most

likely is not working properly. As mentioned earlier, the Computer Properties list is

the best source of information to establish availability of resources. Clicking the

Input/Output (I/O) button at the top of the box will give you a list of Addresses in

use (as well as DMA channels, although none are being used on the Delta DiO).

Usually, there are not address problems with PnP devices, but one might note that an

address of 300h (the default address of the Winman 4X4/s, for instance), will read

"0300" in this list (it is a 16-bit hexadecimal representation).