User Manual

Component identification 11
System maintenance switch
The system maintenance switch (SW1) is an eight-position switch that is used for system configuration. The
default position for all eight positions is Off.
Position Description Function
S1
iLO 3 security Off = iLO 3 security is enabled.
On = iLO 3 security is disabled.
S2
Configuration
lock
Off = System configuration can be
changed.
On = System configuration is
locked.
S3
Reserved Reserved
S4
Reserved Reserved
S5
Password
protection
override
Off = No function
On = Clears power-on password
and administrator password
S6
Invalidate
configuration
Off = Normal
On = Clears NVRAM
S7
Reserved Reserved
S8
Reserved Reserved
System maintenance switch procedures
When you perform troubleshooting steps, this guide may instruct you to perform the following procedures:
• Clear the system configuration ("Clearing the system configuration" on page 11).
• Access the redundant ROM ("Accessing the redundant ROM" on page 12).
To complete these procedures, you must change physical settings on the system maintenance switch.
Clearing the system configuration
RBSU can be used to restore the factory default configuration. For more information, see "HP ROM-Based
Setup Utility (on page 82)." If the system is unable to boot into RBSU, use the following steps to clear the
system configuration:
1. Power down the server blade (on page 16).
2. Remove the server blade (on page 17).
3. Remove the access panel.
4. Change position 6 of the system maintenance switch to on.
5. Install the access panel.
6. Install the server blade in the enclosure and power up the server blade.
7. Wait for the POST message that prompts you to change the switch setting:
Maintenance switch detected in the "On" position.
Power off the server and turn switch to the "Off" position.
8. Repeat steps 1 through 3.
9. Change position 6 of the system maintenance switch to off.