1-22
Chapter 1: Product introduction
8.
USB 2.0 connectors (10-1 pin USB78, USB56 and USB910)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specification that supports up to
480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
A55BM-PLUS
A55BM-PLUS USB2.0 connectors
USB+5V USB_P9- GND NC
USB+5V
USB_P10-
GND
USB910
PIN 1
USB+5V USB_P7- GND NC
USB+5V USB_P8-
GND
USB78
PIN 1
USB+5V USB_P5- GND NC
USB+5V USB_P6-
GND
USB56
PIN 1
A55BM-PLUS
A55BM-PLUS TPM Connector
PIN 1
TPM
PCICLK FRAME PCIRST#
LAD3
+3V
LAD0
SMBSCL
+3VSB
GND
SB_SUS_STAT
GND
PWROWN LAD2 LAD1 GND SMBSDA SERIRQ GPIO RESET
9.
TPM connector (20-1 pin TPM)
This connector supports a Trusted Platform Module (TPM) system, which can securely
store keys, digital certificates, passwords and data. A TPM system also helps enhance
network security, protects digital identities, and ensures platform integrity.