Originally Posted by AaronP
My guess is that you either just got a bad card and should return it for a replacement, or there is some incompatibility between the new card and the BIOS on your system. It might be worth checking Dell's web site to see if there is an updated BIOS version available.
Thank you Aaron. I am currently in dialogue with PNY to see if they can help. Are there any known board / chipset incompatibilities with 8400GS PCI cards? Do they require a specific class of CPU / frontside bus/ etc?