Ok i still have after many years a 6600 not a GT the original, its been a very good card to me and i still get 60+ frames in source etc.. i dont know how but i do, anyway i was wondering if i can soft mod this card to a better card i.e unlock pipes etc.. or if there is another way to increase performance, if u want me to overclock a guide would be nice 
its a XFX GeForce 6600 128mb
Thanks a lot
Angelos

its a XFX GeForce 6600 128mb
Thanks a lot
Angelos