Asus B85-PLUS B85-PLUSATX power connectors, B85-PLUSDigital audio connector, 3.Digital audio connector (4-1pin SPDIF_OUT)

2.ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)

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

B85-PLUS

+12V DC	+12V DC	+12V DC	+12V DC
GND	GND	GND	GND

+3 Volts		GND
+12	Volts	+5 Volts
+12	Volts	+5 Volts
+5V Standby		+5 Volts
Power OK		-5 Volts
PIN 1	GND	GND
+5 Volts		GND
	GND	GND
+5 Volts		PSON#
	GND	GND
+3	Volts	-12 Volts
+3	Volts	+3 Volts
	PIN 1

B85-PLUS ATX power connectors

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

•DO NOT forget to connect the 4-pin/8-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 or when you intend to install additional 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.Digital audio connector (4-1 pin SPDIF_OUT)

This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connect the S/PDIF Out module cable to this connector, then install the module to a slot opening at the back of the system chassis.

B85-PLUS

+5V SPDIFOUT GND

SPDIF_OUT

B85-PLUS Digital audio connector

The S/PDIF module is purchased separately.

1-14 Chapter 1: Product introduction