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Unit Identifier Switch/UID LED Indicator
A Unit Identifier (UID) switch and indicator (LE1) are located near theg rear I/O ports. When
pressing the UID switch, the UID LED indicator will be turned on. Press the UID switch again
to turn off the LED. The UID Indicator provides easy identification of a system unit that may
be in need of service.
Note: UID can also be triggered via IPMI on the motherboard. For more information on IPMI,
please refer to the IPMI User's Guide posted on our website at http://www.supermicro.com.
UID Switch
Pin Definitions
Pin#
Definition
1
Ground
2
Ground
3
Button In
4
Button In
VGA Port
The onboard VGA port is located next to IPMI LAN port on the I/O back panel. Use this
connection for VGA display.
Ethernet Ports
Two LAN ports (LAN1/LAN2) and a dedicated IPMI LAN are located on the I/O back panel.
These LAN ports are supported by the onboard AST 2500 BMC and accepts an RJ45 type
cable. Refer to the LED Indicator Section for LAN LED information.
LAN Ports
Pin Definition
Pin#
Definition
Pin#
1
10
2
TD0+
11
3
TD0-
12
TD1+
4
13
TD1-
5
14
6
TD2+
15
7
TD2-
16
8
TD3+
17
9
TD3-
18
57
Chapter 4: Motherboard Connections
UID LED
Pin Definitions
Color
Status
Blue: On
Unit Identified
Definition
sgnd
Act LED
P3V3SB
Link 100 LED
(Yellow, +3V3SB)
Link 1000 LED
(Yellow, +3V3SB)
Ground
Ground
Ground
Ground
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