Technical data

FRU Replacement
5-31
DIGITAL Server 3220/3220R
Main Logic Board Components
Figure Legend Component
A Real-time clock battery
B SCSI controller
C Switch block (SW1)
D BIOS flash ROM
Main Logic Board Switch Settings
The following table lists the main logic board switch settings and factory-default
settings. Figure A-1 shows the switch locations.
CAUTION:
Do not touch any electronic component unless
you are safely grounded. Wear a grounded wrist strap or
touch an exposed metal part of the server chassis. A static
discharge from your fingers can result in permanent
damage to electronic components.
Feature Function Setting Description
BIOS
Protection
Normal
BIOS protection on
SW1-1, off
(1)
SW1-1, on
Set this switch to
Bios Protection
(ON) to prevent unauthorized personnel
from loading a new server BIOS.
Recovery
mode
Normal
Recovery mode
SW1-2, off
(1)
SW1-2, on
If your BIOS upgrade failed, refer to the
README.TXT file that came with the
BIOS upgrade.
Password
clear
Normal
(1)
Password clear
SW1-3, off
(1)
SW1-3, on
If the customer forgets the password, set
this switch to the
Password Clear
(ON)
position and then restart your server.
CMOS
clear
Normal
(1)
CMOS clear
SW1-4, off
(1)
SW1-4, on
This switch is set to
Normal
(OFF) at the
factory. Setting the switch ON clears all
data in CMOS, such as passwords, date,
and configuration settings. The BIOS will
then use the default configuration.
(1)
Factory default setting
ON = switch up; OFF = switch down