the GF100 GPU solves some issues that the GF100 had. Critics won't accept its higher model number and consider it more of a GF100b. Nvidia's very own BIOS-flashing tool now reveals that those critics and the makers behind the chip had the same idea.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips