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2 Introduction
Power-supply LEDs
On
On
On
On
Server power features
When the server is connected to an ac power source but is not turned on, the operating
system does not run, and all core logic except for the service processor is shut down; however,
the server can respond to requests from the service processor, such as a remote request to turn
on the server. The power-on LED flashes to indicate that the server is connected to ac power
but not turned on.
In a two-node configuration, connect both servers to an ac power source as close to the same
time as possible to ensure optimum operation.
Approximately 5 minutes, or up to 8 minutes in a 2-node configuration, after the server is
connected to ac power, the power-control button becomes active, and one or more fans might
start running to provide cooling while the server is connected to power. You can turn on the
server and all nodes in the partition and start the operating system by pressing the
power-control button.
If you are restarting a two-node server after it has been turned off, you must allow extra time
for the hardware to synchronize before you turn on the server again.
The server can also be turned on in any of the following ways:
2-10
Off
Off
Off
or
On
Flashing
On
Off
On
On
Turning on the server
−
If a power failure occurs while the server is turned on, the server will restart
automatically when power is restored.
−
The systems-management software can turn on the server remotely.
−
If your operating system supports the Wake on LAN feature, the Wake on LAN
feature can turn on the server.
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Description
Action
1. Reseat the power supply.
Power
supply
not fully seated,
2. If the system-board error
faulty
system
LED is off, replace the power
board, or faulty
supply.
power supply
3. (Trained service technician
only) If the system-board error
LED is lit, replace the system
board.
Faulty
power
Replace the power supply.
supply
Normal
-
operation
Power supply is
Replace the power supply.
faulty but still
operational
Tecal RH5485 Server
Problem Determination and Service Guide
Issue 02 (2011-05-25)
Notes
This
typically
indicates that
a
power
supply is not
fully seated.
-
-
-
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