M-AUDIO Delta TDIF - Manual (Page 52)

"IRQ Holder for PCI Steering" along with an installed PCI device (such as
the Delta TDIF) is normal. If you see another device showing up on the
same IRQ as the Delta TDIF (such as a video card, SCSI adapter, or USB
Host Controller), then it is possible that this is the source of the conflict.
Typically, if you move one of the conflicting cards to another PCI slot, an
IRQ conflict will disappear.
Address conflicts are rare amongst PCI devices, but if there is no obvious
IRQ conflict, why not check for I/O Address conflicts while in the Device
Manager? You may view the list of assigned I/O addresses by selecting
the "Input/output (I/O)" radio button below the "Interrupt Request
(IRQ)" radio button at the top of the Device Manager page. I/O
addresses are displayed as 16-bit hexadecimal numbers, therefore one
might note that an address of 300h (the default address of the Winman
4X4/s, for instance), will read "0300" in this list.
If scanning all the resource lists in the Device Manager does not provide
an answer or clue to the resource conflict, you might want to exit
Windows and do a final inspection of your computer’s BIOS setup. Some
newer BIOS’s (see your computer manual) allow the reservation of an
IRQ for each PCI slot on the motherboard. This may be very handy in
resolving IRQ assignments for PCI devices.
Also, sometimes a BIOS is configured to direct a particular IRQ to an ISA
legacy device (non-PnP ISA card), and needs to be told to look for a
PCI/ISA PnP device (some systems default to this, especially with IRQs
3 and 4). Consult your computer or motherboard manual for advice on
how to do this.
Finally, with some systems you will reach the dead-end realization that
you have no available IRQ’s – every one of them is assigned to some
device in the system. This most typically occurs with pre-packaged
computers made by the big-name O.E.M. computer companies. These
computers have so many features packed into them that every IRQ is
consumed. In this type of situation, some kind of reconfiguring or
reprioritizing your system is in order. Optionally, Windows may allow
you to create a second "hardware configuration" which disables some of
the installed devices and makes their resources available for general use.
See your Windows documentation for information on this subject.
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