HP Compaq KB-9965 311059-131 Manuel D’Utilisation
Codes de produits
311059-131
Connectors, LEDs, and Switches
System Maintenance Switch
The system maintenance switch (SW4) is an eight-position switch that is used for system
configuration. The default setting for all six positions is off.
configuration. The default setting for all six positions is off.
Figure 4-15: System maintenance switch (SW4)
Table 4-21: System Maintenance Switch (SW4)
Position Description
On/Off
Function
1
Reserved
Off = System configuration can be changed.
2
Lock configuration
information
information
On = System configuration is locked and cannot be changed.
Off = System is in a tower configuration.
3
Tower/rack model select
On = System is in a rack configuration.
Off = Booting from diskette is controlled by RBSU.
4
Enable diskette boot
On = Booting from diskette is enabled and RBSU setting is overridden.
Off = System passwords work normally.
5
Clear system passwords
On = System passwords will be erased.
Off = No function is available.
6
Invalidate non-volatile RAM
(NVRAM) and CMOS
(NVRAM) and CMOS
On = ROM treats system configuration as invalid.
7
Reserved
8
Reserved
Note:
To access redundant ROM, set system maintenance switches 1, 5, and 6 to the “on” position. Refer to the
HP ProLiant ML570 Generation 2 Server Setup and Installation Guide for more information.
Note:
The server serial number must be re-entered through RBSU after clearing the NVRAM. Refer to “Re-entering
the Server Serial Number” in Chapter 2.
HP ProLiant ML570 Generation 2 Server Maintenance and Service Guide
4-23