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Chapter 1: Introduction
Control Panel Features (One Per Node)
Feature Description
Node Label Label with the name of the node connected to the control panel.
Power Button
The main power switch applies or removes primary power from the power supply to the
server but maintains standby power.
NIC LED Indicates network activity on the LAN when ashing.
Information LED An LED to convey information about the system (see table below for details).
UID LED
The unit identication (UID) button turns on or o the blue light function of the Information
LED and a blue LED on the rear of the chassis. These are used to locate the server in large
racks and server banks.
Control Panel
Figure 1-2. Control Panel (One Per Node)
NIC LED
Information LED
Node Label
Power Button
UID LED
Information LED
Color, Status Description
Red, solid An overheat condition has occurred.
Red, blinking at 1Hz Fan failure, check for an inoperative fan.
Red, blinking at 0.25Hz
Power failure, check for a non-operational
power supply.
Red, solid, with Power LED blinking green Fault detected
Blue and red, blinking at 10 Hz Recovery mode
Blue, solid
UID has been activated locally to locate
the server in a rack environment.
Blue, blinking at 1Hz
UID has been activated using the BMC to
locate the server in a rack environment.
Blue, blinking at 2Hz BMC is resetting
Blue, blinking at 4Hz BMC is setting factory defaults
Blue, blinking at 10Hz with Power LED blinking
green
BMC/BIOS rmware is updating
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