Filter
Top Products
Chapter 1
Overview
Controls, Ports, and LEDs
27
Table 1-3 lists LED definitions for the switches and buttons.
Table 1-3 Switch and Button LED Definitions
Switch and Button Description
Power Button Controls the power supply (turns system power on or off) if power is available to
the power supply. (Controls both power supplies if two are installed).
If power is off but power is available to the power supplies, pressing the power
button does the following:
• From zero to five turns on the power supplies and applies power to server
circuits.
• More than five seconds then released, has no effect.
If power is on and the system is at initial system loader, pressing the power
button:
• Momentarily (less than one second) has no effect.
• More than one second, but less than five seconds—do not use. This initiates
e-buzzer functions that are not supported in the server.
• More than five seconds then released causes an immediate hard power off.
If power is on and the system is at BCH, pressing the power button does the
following:
• From zero to five sceonds has no effect.
• More than five seconds then released causes an immediate hard power off.
If power is on but the OS has been shut down, pressing the power button:
• Momentarily (less than one second) has no effect.
• More than one second, but less than five seconds—do not use. This initiates
e-buzzer functions that are not supported in the servers.
• More than five seconds then released causes an immediate hard power off.
If the OS is running, pressing the power button does the following:
• Momentarily (less than one second) has no effect.
• More than one second, but less than five seconds—do not use. This initiates
e-buzzer functions that are not supported in the servers.
• More than five seconds then released causes an immediate hard power off.
NMI Button Use a paper clip to press this button. Press the non-maskable interrupt (NMI)
button before restarting the system after a the system hangs. NMI provides crash
dump capture capability. Obtain a system hardware status dump to use in root
cause analysis and debugging. The same function is available with the CM>TC iLO
MP command.