Asus E900 G4 User Manual - Page 84
Serial port connector 10-1 pin COM1, Power Supply SMBus connector 5-pin PSUSMB
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17. Power Supply SMBus connector (5-pin PSUSMB) This connector allows you to connect SMBus (System Management Bus) to the PSU (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 enable the ASUS ASMB card. Power supply is required to meet PMBus specification and customized BMC FW may be needed. Please contact ASUS if your need further support 18. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. 3-24 Chapter 3: Motherboard Information
![](/manual_guide/products/asus-e900-g4-user-manual-1a3e698/84.png)
Chapter 3: Motherboard Information
3-24
18.
Serial port connector (10-1 pin COM1)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
17.
Power Supply SMBus connector (5-pin PSUSMB)
This connector allows you to connect SMBus (System Management Bus) to the PSU
(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 enable the ASUS ASMB card.
Power supply is required to meet PMBus speciļ¬cation and customized BMC FW may be
needed. Please contact ASUS if your need further support