HP 457626-001 Manuale Utente

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Contents 29 
 
 
 
Jumpers – Password and Chassis ID 
The system board password (P20) chassis ID1(P26) and chassis ID2(P27) jumpers. Table 4
 
describes 
the jumper settings. 
Table 4 
 System configuration switch settings 
Jumper  
Status  
P20 1-2, 
password 
enable 
P26 
1-2, default setting 
P27 
2-3, default setting 
System Switches 
NMI button (SW5) 
If the system crashes or stops operating, you can momentary press the NMI button (SW5) to manually 
force the server to issue a Non-Maskable Interrupt (NMI). This will perform a memory dump—writing 
the contents in the server's CPU registers and system memory to a network server or to diskettes. This 
memory dump can later be analyzed to determine the cause of the problem. By default, the NMI 
switch is always disabled. 
Figure 4  NMI button 
 
 
NOTE: Use of the NMI button is not supported in all NOS. As of the present, NMI implementation is 
not available for systems running on Solaris and Linux operating systems. 
Clear CMOS Button (SW4) 
The system board has a system configuration (CMOS) button (SW4). To clear system configuration, 
remove power cord and press the CMOS button for seconds.