Computer Audio Asylum

Music servers and other computer based digital audio technologies.

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Original Message

I am aware of that.

Posted by Presto on July 3, 2008 at 10:52:50:
Soundguy:

I have 5 controllers on my PC, and 5 corresponding hubs.

some controller/hub combinations are shared, while others are either shared with another USB controller, or not shared at all.

The trick is to know which hub you are plugged into (which is academic if you are using the device manager and looking as "resources by type -> IRQs". Then find the hub that is either shared with only other USB controllers, or not shared at all.

Sometimes this requires moving PCI cards around.

There is no way that I have found on the net to "map" IRQ's manually in XP. The ability to over-ride is greyed out, and likely because most PCs now are 'ACPI Multiprocessor' based.

Cheers,
Presto