Supermicro SuperServer SYS-E302-13AD User Manual page 30

CMOS Battery
BT1 is a 2-pin connector for an external CMOS battery. This connector is also used to clear
the CMOS. To clear the CMOS, remove the battery, short pins 1-2 for more than 10 seconds
and then install the battery.
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. Go to the following link for more information on
the TPM: http://www.supermicro.com/manuals/other/TPM.pdf. Disable the Onboard TPM 2.0
function before adding an AOC TPM module.
Buzzer
On the JD1 header, pins 1-4 are for the buzzer. Connect a cable to this header to use it as
a buzzer. Enable the Buzzer function before using it. The SATA LED will be disabled while
the Buzzer is activated.
Trusted Platform Module Header
Pin Definitions
Pin# Definition Pin# Definition
1 +3.3 V 2 SPI_CS#
3 RESET# 4 SPI_MISO
5 SPI_CLK 6 GND
7 SPI_MOSI 8 NC
9 +3.3 V Stdby 10 SPI_IRQ#
Buzzer
Pin Definitions
Pin # Definition
1-4 Buzzer
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Chapter 4 Motherboard Connections