Sony PCV-R553DS - Vaio Digital Studio Desktop Computer, Reference Manual

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Configuring Your System
19
Configuring the System Board
The system board contains a CMOS Clear configuration jumper, and two
sets of reserved jumper blocks (do not change).
The CMOS and Non-Volatile RAM (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.
The Clear CMOS mode removes the password that is stored in CMOS. No
other parameters are cleared.
1
Remove the cover (see “Removing the Cover” on page 22).
2
Set the jumpers as directed by a service technician (also see
“Configuration Jumper” on page 69).
3
Reinstall the cover (see “Replacing the Cover” on page 27).
4
Reinstall the front panel (see “Replacing the Front Panel” on page 26).
✍
The configuration jumpers should never need changing unless otherwise directed by a
technical support or service technician.
!
Before opening the system, save any open files, exit the Microsoft
®
Windows
®
operating system, turn off the power of the computer and all
attached peripherals, and unplug the power cord.
OM04588.VSD
CMOS Clear
Clear
2-3
Normal
1-2
= default jumper
1 3
CMOS CLR
2
Reserved (do not change)
Reserved (do not change)