4 of my PCI slots work, but one doesn't. I replaced the mobo on wednesday (exactly the same model). I plugged the PCI cards into the same slots and fired it up.
My TV card did not work, so i put in another slot and worked fine. I tried a modem in the slot, but windows did not detect any new hardware and I had no unknown devices (or modem) in device manager.
I have tried all the other slots and devices work fine. could this be a mobo fault or do I need to change some settings
That's completely normal. It's caused by busmastering devices and shared PCI slot IRQ's. Many busmastering devices simply will not share an IRQ with another busmastering device.
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