Supermicro SuperServer 5019A-12TN4 - Page 39

39
Chapter 4: Motherboard Connections
Thermal Diode Headers
JRT3 is the thermal diode 1 header, and JRT4 is the thermal diode 2 header. They are thermal
sensor headers that provide additional system temperature monitoring.
Thermal Diode 1 Header
Pin Denitions
Pin# Denition
1 TD1_P
2 TD1_N
Thermal Diode 2 Header
Pin Denitions
Pin# Denition
1 TD2_P
2 TD2_N
Unit Identier Switch/UID LED Indicator
A Unit Identier (UID) switch and an LED Indicator are located on the motherboard. The UID
switch is located at UID, which is next to the VGA port on the back panel. The UID LED
(LED2) is located next to the UID switch. When you press the UID switch, the UID LED will
be turned on. Press the UID switch again to turn o󰀨 the LED indicator. The UID Indicator
provides easy identication 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 Denitions
Pin# Denition
1 Ground
2 Ground
3 Button In
4 Button In
UID LED
Pin Denitions
Color Status
Blue: On Unit Identied