Sony PCV-LX920 - Manual (Page 33)

Configuring Your System 21
Configuring the System Board
There are two configuration switches on the system board:
❑ CMOS Clear switch
❑ Onboard VGA Interrupt (AGP_INT) switch
When the CMOS Clear switch is in the Normal position, it provides
normal access to the BIOS Setup Utility.
The Central Processing Unit (CPU) input clock is forced to remain at 100
MHz (fast mode), and the Basic Input/Output System (BIOS) uses the
User CMOS settings (as opposed to the System CMOS settings).
The CMOS and NVRAM settings are only cleared if the checksum test
returns false. Access to specific setup fields is controlled by a supervisor
password or user password.
When the CMOS Clear switch is in the Clear position, the password that
is stored in CMOS is cleared. No other parameters are cleared. While the
CMOS switch is in the Clear position, the system does not boot up at all.
To clear your password, after setting the switch to the Clear position, wait
2-3 seconds, and then set the switch to the Normal position.
If you install a VGA PCI add-in card, use the AGP_INT switch to enable
or disable the onboard VGA controller.
✍
The configuration should never need changing unless otherwise directed by a technical
support or service technician.
!
Before opening the system unit, save and close all open files, exit all open
applications, turn off the power to all attached peripheral devices, shut
down the computer, and unplug the power cord.