Digital Equipment 3100R Series, Service Maintenance Manual

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FRU Replacement
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Main Logic Board Switch and Jumper Settings
The following table lists the main logic board switch settings, jumper settings and
factory-default settings. Figure 5-14 shows the switch and jumper 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 the fingers can result in permanent damage
to electronic components.
Feature Function Setting Description
BIOS
upgrade Disabled
Enabled (1) SW1-1, off
SW1-1, on (1) This switch is set to Enabled (on) at the factory in
order to load the latest BIOS information from the
ServerWORKS Quick Launch CD-ROM.
To prevent unauthorized personnel from loading a
new server BIOS, you must set this switch to
Disabled (off). Loading a new server BIOS might
allow someone to override other server security
features or introduce a virus into the server.
Recovery
mode Normal (1)
Recovery mode SW1-2, off (1)
SW1-2, on If the BIOS upgrade failed, refer to the
README.TXT file that came with the BIOS
upgrade.
Boot block
update Disabled (1)
Enabled SW1-3, off (1)
SW1-3, on Set this switch to disabled (OFF) position to
prevent unauthorized personnel from changing the
BIOS boot block.
Password
clear Normal mode (1)
Password clear SW1-4, off (1)
SW1-4, on Set this switch to the password clear (ON) position
and then restart the server to reset the password.
RSM
installed Installed
Not installed (1) SW1-5, off
SW1-5, on (1) If DIGITAL’s Remote Server Management
(RSM) option is added to the server, connect
the RSM reset cable to RSM connector and
change the switch position to the installed
(OFF) position.
(1) Factory default setting
ON = switch closed; OFF = switch open
continued