Sony PCV-L620 - Manual (Page 70)

VAIO Computer Reference Manual 62
Configuration Jumpers
The configuration jumpers include CMOS Clear, VGA Enable, and
INTEN.
CMOS Clear (CMOS)
A jumper cap is installed on pins 1 and 2 (Normal) of the CMOS header
when the computer is shipped. Do not move the jumper cap to the CMOS
Clear position unless otherwise directed by a technical support person.
KY0059.VSD
1 2 3
CMOS Clear Normal