I recieved a used Optiplex 740 desktop (Athlon64 2.3GHz/1GB RAM), and would like to replace my current "ibm" with it. I know what I need, but I want to know if I can just drop in a new GFX card, or does the original Dell MoBo, specifically the BIOS, have (silly mfg) limitations?

And yes, that ancient Athlon is still more powerful then the silly Celeron in my current system.