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007-5759-001
3: System Interface
Figure 3-3
System Serverboard Control Panel Example
Serverboard Power Button
The button at the top of the control panel is the power button, which is used to apply or turn off
the main system power going to a specific serverboard. Note that there are a total of four on the
front of each server and each controls only one serverboard. Turning off a system serverboard’s
power with this button removes the main power but keeps standby power supplied to the
serverboard.
Unit Identifier Button
A Unit Identifier (UID) button is located on the lower part of each control panel. There is another
(mirror) UID located on the rear of the serverboard.When you push either UID button, both Rear
UID and Front Panel UID LED indicators will illuminate. Push either button again to turn off both
indicators. These UID indicators provide easy identification of a system serverboard that may
need service or replacement.
Control Panel LEDs
The serverboard control panels located on the front of the chassis have status LEDs. These LEDs
provide you with critical information related to different parts of the system.
The following subsections explain what each LED indicates when illuminated and any corrective
action you may need to take.
Power
RESET
Overheat/Fan fail/Unit ID (bi-color) LED
NIC 1 activity LED
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