9.Serial port connectors (10-1 pin COM1/COM2)

These connectors are for the serial COM ports. Connect the serial port module cable to one of these connectors, then install the module to a slot opening at the back of the system chassis.

10.Power Supply SMBus connector (5-pin PSUSMB1)

This connector allows you to connect SMBus (System Management Bus) to the power supply unit to read PSU information. Devices communicate with an SMBus host and/or other SMBus devices using the SMBus interface.

This connector functions only when you install the ASUS ASMB7.

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Chapter 4: Motherboard information