Links to mods:
(disclaimer: some of these are Forum posted tips, so beware)
GeForce FX 5200 --> Quadro FX 500
http://forums.matroxusers.com/showth...078#post435078
(I'll update this post with more)
Some of these mods seem to involve the use of RivaTuner, here;
http://www.guru3d.com/index.php?page=rivatuner&menu=8