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Chapter 11. Component and Attention LEDs
This chapter contains information about component and attention LEDs, which assist in identifying failing
components in your system.
Operator Panel Display
If a failing component is detected in your system, an amber-colored attention LED is turned on solid (not
blinking).
Number
Component Name
1 Operator Panel Display
2 Overlay
3 Attention LED
4 System Reset Button
5 Power LED
6 Power-On Button
7 Service Processor Reset Switch
(Pinhole)
8 Serial Number Label
Component LEDs
Individual LEDs are located on or near the failing components. The LEDs are located either on the
component itself or on the carrier of the component (for example, memory card, fan, memory module,
CPU). LEDs are either green or amber.
Green LEDs indicate either of the following:
v Electrical power is present.
v Activity is occuring on a link. (The system could be sending or receiving information.)
1
8
7
6
5
OK
3
4
Component Description
Displays current status of system startup, or diagnostic
information in the event of a hardware problem.
Operator panel overlay
Normal State - LED is off
Resets the system
Blinking - When connected to the power source (System is
in standby mode).
Solid - When power button has been pressed.
Note: There is approximately a 30-second transition period
from the time the power-on button is pressed to when the
power LED goes from blinking to on solid. During the
transition period, you may observe the blinking intervals
speed up.
Turns the system power on and off.
Service Personnel Use
Displays the system serial number
2
309
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