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Chapter 4: Motherboard Connections
Disk-On-Module Power Connector
One power connector for SATA DOM (Disk-On-Module) devices is located at JSD1. Connect
appropriate cables here to provide power support for your Serial Link DOM devices.
DOM Power
Pin Definitions
Pin#
Definition
1
5V
2
Ground
3
Ground
Power SMB (I
2
C) Header
The Power System Management Bus (I
2
C) connector (JPI
2
C1) monitors the power supply,
fan, and system temperatures. Refer to the table below for pin definitions.
Power SMB Header
Pin Definitions
Pin#
Definition
1
Clock
2
Data
3
PMBUS_Alert
4
Ground
5
+3.3V
BMC External I2C Header
A System Management Bus header for IPMI 2.0 is located at JIPMB1. Connect the appropriate
cable here to use the IPMB I
2
C connection on your system. Refer to the table below for pin
definitions.
External I
2
C Header
Pin Definitions
Pin#
Definition
1
Data
2
GND
3
Clock
4
NC
TPM/Port 80 Header
The JTPM1 header is used to connect a Trusted Platform Module (TPM)/Port 80, which
is available from Supermicro. A TPM/Port 80 connector is a security device that supports
encryption and authentication in hard drives. It allows the motherboard to deny access if the
TPM associated with the storage drive is not installed in the system.
Trusted Platform Module Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
LCLK
2
GND
3
LFRAME#
4
No Pin
5
LRESET#
6
+5V (X)
7
LAD3
8
LAD2
9
3.3V
10
LAD1
11
LAD0
12
GND
13
SMB_CLK (X)
14
SMB_DAT (X)
15
P3V3_STBY
16
SERIRQ
17
GND
18
LPC_CLKRUN (X)
19
SUS_STAT_N
20
LDRQ# (X)
