2.ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.

EATX12V EATXPWR

+12V DC +12V DC

PIN 1

GND

GND

P8H61-M LX2 R2.0

+3 Volts

+12 Volts

+12 Volts

+5V Standby

Power OK

GND

+5 Volts

GND

+5 Volts

GND

+3 Volts

+3 Volts

PIN 1

GND

+5 Volts

+5 Volts

+5 Volts

-5 Volts

GND

GND

GND

PSON#

GND

-12 Volts

+3 Volts

P8H61-M LX2 R2.0 ATX power connectors

• For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version) and provides a minimum power of 350 W.

•DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will not boot up.

•We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate.

•If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

3.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.

COM1

CTS

DSR

DTR

RXD

PIN 1

DCD TXD GND RTS RI

P8H61-M LX2 R2.0

P8H61-M LX2 R2.0 Serial port (COM1) connector

The COM module is purchased separately.

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ASUS P8H61-M LX2 R2.0