Dell Precision 340; Windows 2000 Pro
I've purchased and installed two different brands of PCI USB 2.0 cards. The case is the same for both cards. If nothing is plugged into the new USB 2.0 ports, the computer boots fine. Once booted, anything can be plugged-in and it works fine. With something plugged into a new USB 2.0 port, the computer won't boot. It gets hung in the middle of the Windows start-up screen.
The computer boots fine when something's plugged into the old USB 1.0 ports. I've moved the new card from one slot to another with no differnce.