Connectors, Switches, and LEDs 69
Designator Description
42 P6 4-pin power connector
43 DIMM1-4 DDR2 FB-DIMM slots
44 J4 Server management control firmware
45 P4 5-pin system fan2 header (with extension cable)
Jumpers – Password and Boot Block
The system board password (P11) and boot block (P18, P19) jumpers. Table 5 describes the jumper
settings.
Table 5 System configuration switch settings
Jumper Status
P11 On (default)
Off
P18 On
Off (default)
P19 On
Off (default)
System Switches
NMI button (SW1)
If the system crashes or stops operating, you can momentary press the NMI button (SW1) 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.
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