User`s guide
Chapter 5: Advanced Serverboard Setup
5-21
UID Switch
Pin# Denition
1 Ground
2 Ground
3 Button In
4 Ground
UnitIdentierSwitches
Two Unit Identier (UID) Switches and LED Indicators
are located on the motherboard. The Front Panel UID
Switch is located at Pin 13 on the Front Control Panel
(JF1). The Rear UID Switch is located at SW1 next to
the In niBand Connector. The Front Panel UID LED is
located at Pin 7 of JF1, and the Rear UID LED is located
at LE4. When you press a UID switch on the front panel
or on the back panel, both Rear UID LED and Front
Panel UID LED Indicators will be turned on. Press the
UID switch again to turn off both LED Indicators. These
UID Indicators provide easy identi cation of a system
unit that may be in need of service. See the table on
the right for pin denitions.
Note: UID LED is supported by the physical
switch or the BMC. When it is controlled by
the physical switch, it will stay solid. When it is
controlled by the BMC, it will blink.
1: UID Switch
2: FP UID Switch & UID LED