Supermicro A+ AS-4023S-TRT User Manual page 49

TPM Header
The JTPM1 header is used to connect a Trusted Platform Module (TPM)/Port 80, which is
available from a third-party vendor. 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 hard drive is not installed in the system. See the table below for
pin definitions.
Disk-On-Module Power Connector
The Disk-On-Module (DOM) power connectors at JSD1 and JSD2 provide 5V power to a
solid-state DOM storage device connected to one of the SATA ports. See the table below for
pin definitions.
Onboard Speaker
The motherboard's onboard speaker or buzzer is at location SP1. This emits audible signals
for diagnostics and error messages.
USB 2/3
The USB 2/3 header contains a header for USB ports #2 and #3. If the chassis supports
this feature, connect the Front Panel cable to this header to access USB ports #2 and #3
directly from the chassis front panel.
Trusted Platform Module/Port 80 Header
Pin Definitions
Pin# Definition Pin#
1 +3.3V 2
3 RESET# 4
5 SPI_CLK 6
7 SPI_MOSI 8
9 +3.3V Stdby 10
DOM Power
Pin Definitions
Pin# Definition
1 5V
2 Ground
3 Ground
Front Panel USB 2.0
Header Pin Definitions
Pin# Definition Pin#
1 +5V 2
3 USB_PN2 4
5 USB_PP2 6
7 Ground 8
9 Key 10
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Chapter 4: Motherboard Connections
Definition
SPI_CS#
SPI_MISO
GND
SPI_IRQ#
Definition
+5V
USB_PN3
USB_PP3
Ground
Ground