Makes sure you are putting the card in correctly. Your power supply will work for the 5200 btw.
Does your other card work, or have you tried putting it back in.
Also, this may sound dumb, but make sure you plugged it into your PSU, heh
This sounds like a Hardware level or BIOS problem.
Have you updated your BIOS to version A06? Have you gone into your BIOS to see if the video card is detected as a 4x AGP video card? Disable quick boot to see where your boot-up is failing. It might be failing during the Removable/Hard Disk boot sequence.
I still havent figured this one out yet lol been a few months thought i would try again and see if anyone knows anything about this problem. I can put the original vid card back in and it boots just fine. As far as the bios update i cant seem to get that to work either. I downloaded AO6 the newest version to a floppy and restarted my comp and it goes to a black screen and says "Starting MS DOS mode..." and hangs there any ideas??????
Ok i got the BIOS to flash to the newest one AO6, i then uninstalled the nvidia drivers in the add/remove programs like the new vid card stated to do and turn comp off not restart. I then popped in the new card and restarted, while booting it jumped to the setup and i changed the aperature from 64mg to 256mg and saved and exited it then continued to boot up and loaded all the way with no errors. XP recognized my new hardware and i followed the Vid card install instrucions by canceling the add hardware wizard and popped in their cd and installed the drivers for the card. Ok all uis going well i update to the newest nvidia drivers and reboot and still all is going well. I start up my Everquest game get inside and the upgrade is huge i get like no lag with all graphics turned up high im thinking finally. I shut game down to go and tweak a few settings and when its exiting my screen goes black and hangs. I wait and click mouse and turn monitor on and off and nothing so i hit the power button on the tower and it flips to desktop i see a quick Everquest error window and the pc continues to shut down. Im thinking ok no biggie i might need to change some more settings or something, i restart the pc and its back to hanging on a error during boot just like before i updated the bios. Any ideas???? I tried to uninstall the nvidia stuff again and that dont work. It does boot up with the original card but dammm i want those kicking graphics back lol. Help!!1