IBM System x3550 M3, Installation And User Manual

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v
System-error LED: When this LED is lit, it indicates that a system error has
occurred. An LED on the light path diagnostics panel is also lit to help isolate the
error.
v Power-on LED: When this LED is lit and not flashing, it indicates that the server
is turned on. The states of the power-on LED are as follows:
Off: Power is not present, or the power supply or the LED itself has failed.
Flashing rapidly (4 times per second): The server is turned off and is not
ready to be turned on. The power-control button is disabled. This will last
approximately 20 to 40 seconds.
Flashing slowly (once per second): The server is turned off and is ready to
be turned on. You can press the power-control button to turn on the server.
Lit: The server is turned on.
Fading on and off: The server is in a reduced-power state. To wake the
server, press the power-control button or use the IMM Web interface. See
“Logging on to the Web interface” on page 120 for information on logging on
to the IMM Web interface.
v
System-locator LED: Use this LED to visually locate the server among other
servers. You can use IBM Systems Director to light this LED remotely.
Power-supply LEDs
The following illustration shows the location of the power-supply LEDs on the rear
of the server. See the
Problem Determination and Service Guide for additional
information about solving power-supply problems.
The following table describes the problems that are indicated by various
combinations of the power-supply LEDs on an ac power supply and suggested
actions to correct the detected problems.
Chapter 1. The System x3550 M3 server
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