Supermicro SuperServer 5019A-12TN4 - Page 38

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SuperServer 5019A-12TN4 User's Manual
Power SMB (I
2
C) Header
The Power System Management Bus (I
2
C) connector at JPI
2
C1 monitors the power supply,
fan, and system temperatures. See the table below for pin denitions.
Power SMB Header
Pin Denitions
Pin# Denition
1 Clock
2 Data
3 PMBUS_Alert
4 Ground
5 +3.3V
System Management Bus Header
A System Management Bus header for additional slave devices or sensors is located at
JSMB1. See the table below for pin denitions.
External I
2
C Header
Pin Denitions
Pin# Denition
1 Data
2 Ground
3 Clock
4 NC
JLANLED1
JLANLED1 is the activity header for LAN3 and LAN4.
SATA Ports
The A2SDi-LN4F has four SATA 3.0 ports that are supported by the Intel C236 chipset.
Mini PCI-E Slot
JMP1 is a mini PCI-E 3.0 X1 slot that is mixed with I-SATA5.
M.2 Socket
The JMD1 M.2 socket is designed for internal mounting devices. This motherboard deploys
an M Key 2242/80 dedicated for SSD devices with the ultimate performance capability in a
PCI Express 3.0 X4 interface for native PCIe SSD support. The A2SDi-LN4F M.2 is mux with
the I-SATA4 port for legacy SATA SSD devices.