Sometimes it is possible that a resource problem 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 double-
check), you can view all of the devices and their assigned resources by highlighting
OComputer� at the top of the Device Manager list and clicking the Properties
button. This will allow you to view a list of assigned IRQ numbers on the left, and
the associated devices on the right. If a number does not show up in this list, it
means that it is available for use. Look also for IRQs that are shared by more than
one device. While the Delta66 may share an IRQ with some devices, not all
devices are capable of sharing IRQs. An entry that reads OIRQ Holder for PCI
Steering� along with an installed PCI device (such as the Delta 66) is normal. If
you see another device showing up on the same IRQ as the Delta66 (such as a
video card, SCSI adapter, or USB Host Controller), then it is possible that this is the
source of the conflict. Ty p i c a l l y, 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 OInput/output
(I/O)� radio button below the OInterrupt 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 O0300� 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 computerOs BIOS setup. Some newer BIOSOs (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 ISAlegacy
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