Sony PCV-L630 - Manual (Page 76)

VAIO Computer Reference Manual 68
The computer ships with AGP_INT (SW 5) set to OFF (Disable) and VGA
(SW 6) set to OFF (Disable). The computer ships with the FREQ Ratio
multiplier set to X6.0 (see SW table for positions of SW 1 through 4). Do
not change the position of any switch unless directed by a Sony-