Supermicro SYS-521C-NR User Manual page 57

Power SMB (I C) Header
2
Power System Management Bus (I
system temperatures. Refer to the table below for pin definitions.
Standby Power
The Standby Power header is located at JSTBY1 on the motherboard. You must have a card
with a Standby Power connector and a cable to use this feature. Refer to the table below
for pin definitions.
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. Visit the following link for more information on the
TPM: http://www.supermicro.com/manuals/other/TPM.pdf.
C) header at JPI
2
Power SMB Header
Pin Definitions
Pin# Definition
1 Clock
2 Data
3 Power Fail
4 Ground
5 +3.3V
Standby Power
Pin Definitions
Pin# Definition
1 +5V Standby
2 Ground
3 No Connection
Trusted Platform Module Header
Pin Definitions
Pin# Definition Pin# Definition
1 +3.3V 2 SPI_CS#
3 RESET# 4 SPI_MISO
5 SPI_CLK 6 GND
7 SPI_MOSI 8 NC
9 +3.3V Stdby 10 SPI_IRQ#
57
Chapter 4: Motherboard Connections
C1 monitors the power supply, fan and
2