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Chapter 3: Motherboard Connections
Chapter 3
Motherboard Connections
This section describes the connections on the A2SAN-L motherboard and provides pinout
definitions. Note that depending on how the system is configured, not all connections are
required. The LEDs on the motherboard are also described here. A motherboard layout
indicating component locations may be found in Chapter 1.
Please review the Safety Precautions in Appendix B before installing or removing components.
3.1 Power Connections
4-pin 12V-Standby R/A Type Power Connector
The R/A type power connector is located at JPW1 on the bottom side of the motherboard.
+12V 4-pin Power
Pin Definitions
Pin#
Definition
1
+12VSB
2
+12VSB
3
GND
4
GND
Required Connection
JMD1
JPW1
JMP1
JLPC80
JSMBUS1
J5
JPT1
1
2
3
4