Configuring the system board, I.link interface header connectors – Sony PCV-LX810 Manuel d'utilisation

Page 34

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VAIO Slimtop™ System Reference Manual

20

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 will 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, you can 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.

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