System LEDs and Switches
Table E-14: System Maintenance Switch (SW4)
Position Default Function
Description
Settings
1
Reserved
2 Off
Lock
configuration
Enables or disables
configuration changes
in nonvolatile RAM
(NVRAM)
Open (off)
Configuration can be changed.
Closed (on)
Configuration is locked and cannot
be changed.
3
Reserved
4 Off
Diskette boot
override
Enables or disables
booting from diskette
drive
Both settings enable
you to read from and
write to the diskette
after the system
completes the boot
sequence.
Open (off)
The diskette drive boot is
controlled by the configuration.
Closed (on)
The diskette drive boots
regardless of the configuration.
5 Off
Password
disable
Enables or disables
password protection.
Open (off)
Power-on password is enabled.
Closed (on)
Power-on password is disabled.
6 Off
Configuration
validation
Invalidates nonvolatile
RAM (NVRAM)
configuration
information
Open (off)
NVRAM is valid.
Closed (on)
NVRAM is invalid, and
configuration is lost.
7 Off
Boot-block
enabler
Open (off)
Boot block is disabled.
Closed (on)
Boot block is enabled.
continued
E-18
HP ProLiant DL580 Generation 2 Server Setup and Installation Guide
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