G5 Dual Core not recognizing PCI Express to USB card

I can not get my G5 (late 2005) to recognize a new PCI Express-to-USB 2.0 5-port card. This is an NEC -chip set card, model SD-PEX-NEC5U.
I have another USB card in Slot-4 and, of course, the graphic card (GeForce 6600) in Slot-1.
I've tried this new card in both Slot-2 and Slot-3 with no joy. This is the second NEC card I have tried, thinking the first one was defective.
Does anyone know what the problem is?
Thanks!
Steve

Hi drmemory-
Unfortunately it isn't as simple as being compliant with a couple of mutual standards. No matter what platform you are using you will most likely need drivers. Were there any mac drivers on the disk? That is usually a clue about compatibility.
Considering that the System Profiler doesn't see it, perhaps and SMU reset is in order: How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)
Luck-
-DaddyPaycheck

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