Identifying a part
Use these instructions to learn how to identify the location of a failed part, the location of a part to be
removed, or the location to install a new part on your system or expansion unit using the appropriate
method for your system.
For IBM Power Systems
™
servers that contain the POWER7
®
processor, the light-emitting diodes (LEDs)
can be used to identify or verify the location of a part that you are removing, servicing, or installing.
The combination identify and fault LED (amber color) shows the location of a field replaceable unit
(FRU). When removing a FRU, first verify whether you are working on the correct FRU by using the
identify function in the management console or other user interface. When removing a FRU by using the
hardware management console, the identify function is activated and deactivated automatically at the
correct times.
The identify function causes the amber LED to flash. When you turn off the identify function, the LED
returns to the state it was previously. For parts that have a blue service button, the identify function sets
LED information for the service button so that when the button is pressed, the correct LEDs on that part
flash.
If you need to use the identify function, use the following procedures.
Control panel LEDs
Use this information as a guide to the control panel LEDs and buttons.
The control panel has LEDs that indicate various system status.
Figure 11. Control panel
© Copyright IBM Corp. 2013 25
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