Well this is kind of odd. When i first got the card a few years ago it was preflashed to a 5500 bios, i used to play klingon academy with 4xfsaa so i nkow it was a 5500 at one time. HAsn;t been used in years so when i reinstalled it only one core was being detected like the bios had been reverted to a 4500. I tried the above bios with no luck/ Then i just took the card out and decided to reattach the heatsinks using thermal epoxy instead of the half ton of glue that was holding them on. I cleaned the cores and epoxied the heatsinks to the cores. Put it back into the pc, it gets into windows and installs as a 5500 pci which is now working fine. Somewhat weird to say the least.