Digital Equipment PRIORIS ZX 5000 MP, User Manual

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Technical Specifications
A-6
Main Logic Board Switches/Jumpers
The following table lists the main logic board switches/jumpers and fac-
tory-default settings. Figure A-1 shows the locations of the main logic
board switch/jumper pins.
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 dam-
age to electronic components.
Main Logic Board Switch Settings
Switch Description Setting Description
S8C1-1 Clear CMOS
Protect CMOS
(1)
SW1, On
SW1, Off
(1)
Keep this switch in the factory
default (OFF) position at all times
and only use when instructed by
a Digital service representative.
Unauthorized use can cause
your server to operate
incorrectly.
S8C1-2 Clear password
Enable
password
(1)
SW2, On
SW2, Off
(1)
If you forget your password, set
this switch to (ON) and then
restart your server. Refer to
Chapter 5 for more information.
S8C1-3 Enable flash
write
(1)
Disable flash
SW3, On
(1)
SW3, Off
Your main logic board’s flash
upgrade switch must be set to
(disable flash) to prevent
unauthorized personnel from
loading a new server BIOS.
Loading a new server BIOS
might allow someone to override
other server security features or
introduce a virus into your server.
(1) Factory default setting