Bios setting for graphics card

hi, just wondering if anyone knows if, in the bios, i can set UC to USWC. it tells me USWC is better but i might not be able to re-boot if the card isn't set-up for it.
Athlon 1.2GHZ
ASUS A7V-E
Jaton 3D Force4 Ti4200 8x 128MB
768MB
win2000pro
Athlon 1.2GHZ
ASUS A7V-E
Jaton 3D Force4 Ti4200 8x 128MB
768MB
win2000pro