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Chapter 4: Motherboard Connections
Serial (COM) Header
There is one serial (COM port) header on the motherboard. COM1 is located next to the
header. Refer to the table below for pin definitions.
Serial (COM) Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
Ground
10
N/A
TPM/Port 80 Header
A Trusted Platform Module (TPM)/Port 80 header is located at JTPM1 to provide TPM support
and Port 80 connection. Use this header to enhance system performance and data security.
Refer to the table below for pin definitions. Please go to the following link for more information
on the TPM:
http://www.supermicro.com/manuals/other/TPM.pdf
.
TPM/Port 80 Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
P3V3
2
SPI_TPM_CS_N
3
PCIE_RESET_N
4
SPI_PCB_MISO
5
SPI_PCH_CLK
6
GND
7
SPI_PCH_MOSI
8
X
9
P3V3_STBY
10
IRQ_TPM_SPI_N