I got a VisionTek Killer 2100, and it works, but in game it seems to only work for a few minutes at a time, It will play great for 5 minutes, then either I will lag until I disconnect, just disconnect, or get an error saying "client command overflow." I'm not sure what the problem could be, but before I jump to the conclusion that it is a defective card, I want to ask you guys if you know if not having the correct PCI port could be the problem.
The CD installation recognized the card, and it even updated the firmware on it after it installed the driver and the utility. but, the PCI slot I have it plugged into is a little longer than the PCI card's connector. Here are a few pictures:
PCI Slot & NIC