Asus F2A55 41

6.Digital audio connector (4-1 pin SPDIF_OUT)

This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.

F2A55

+5V	SPDIFOUT GND

SPDIF_OUT

F2A55 Digital audio connector

The S/PDIF module is purchased separately.

7.Front panel audio connector (10-1 pin AAFP)

This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.

	AGND NC SENSE1 RETUR		SENSE2 RETUR
	AAFP
	L	R	L
F2A55	R		SEND
	PORT1	PORT2	PORT2
	PORT1		SENSE
			_
	HD-audio-compliant
	pin definition

F2A55 Front panel audio connector

	AGND NC NC		NC
	PIN 1	MICPWR	out
	MIC2	MICPWR	out
	MIC2	out
		_ NC	L_
		R	L_
		Line	Line

Legacy AC’97

compliant definition

•We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard high-definition audio capability.

•If you want to connect a high definition front panel audio module to this connector, set the Front Panel Type item in the BIOS to [HD]. See section 2.5.5 Onboard Devices

Configuration for details.

•The front panel audio I/O module is purchased separately.

ASUS F2A55

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Contents

Page Page Contents Page Page Electrical safety Operation safety How this guide is organized Where to find more information Conventions used in this guide Typography F2A55 specifications summary Page Page Package contents 1.1.1Product highlights 1.1.2ASUS DIGI+ VRM 1.1.3ASUS Exclusive Features Page 1.2Before you proceed 1.3.1Placement direction 1.3.2Screw holes 1.3.3Motherboard layout 1.3.4Layout contents 1.4.1APU installation 1.4.2APU heatsink and fan assembly installation Page 1.5.1Overview 1.5.2Memory configurations Page Page Page Page Page Page 1.5.3Installing a DIMM 1.6.1Installing an expansion card 1.6.2Configuring an expansion card 1.6.3PCI slots 1.6.4PCI Express x1 slots 1.6.5PCI Express x16 slots Page 1.7Jumpers 1.8.1Rear panel ports Page 1.8.2Internal connectors Page Page Page Page Page 1.9Onboard switch 1.10Onboard LEDs 1.11.1Installing an operating system 1.11.2Support DVD information Page 2.1.1ASUS Update utility 2.1.2ASUS EZ Flash 2.1.3ASUS CrashFree BIOS 3 utility 2.1.4ASUS BIOS Updater Page BIOS menu screen Page Page Page 2.3.1System Language [English] 2.3.2System Date [Day xx/xx/xxxx] 2.3.3System Time [xx:xx:xx] 2.3.4Security Page 2.4Ai Tweaker menu 2.4.1Ai Overclock Tuner [Auto] 2.4.2Memory Frequency [Auto] 2.4.3APU Multiplier [Auto] 2.4.4NB Frequency [Auto] 2.4.5EPU Power Saving Mode [Disabled] 2.4.6OC Tuner 2.4.7DRAM Timing Control 2.4.8CPU Voltage [Offset Mode] 2.4.9DRAM Voltage [Auto] 2.4.10SB 1.1V Voltage [Auto] 2.4.12APU1.2V Voltage [Auto] 2.4.13VDDA Voltage [Auto] 2.4.14DIGI+ VRM Page 2.5.1CPU Configuration 2.5.2SATA Configuration 2.5.3USB Configuration 2.5.4NB Configuration 2.5.5Onboard Devices Configuration 2.5.6APM 2.5.7Network Stack 2.6Monitor menu 2.6.1CPU Temperature / MB Temperature [xxxºC/xxxºF] 2.6.2CPU_FAN / CHA_FAN Speed [xxxx RPM] or [Ignore] / [N/A] 2.6.3CPU_FAN Q-FanControl [Enabled] 2.6.4CHA_FAN1/2 Q-FanControl [Disabled] 2.6.5CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage 2.6.6Anti Surge Support [Enabled] 2.7.1Bootup NumLock State [On] 2.7.2Full Screen Logo [Enabled] 2.7.3Fast Boot [Enabled] 2.7.4Post Delay Time [3 sec] 2.7.5Wait for ‘F1’ If Error [Enabled] 2.7.6Option ROM Messages [Force BIOS] 2.7.7Next boot after AC Power Loss [Normal Boot] 2.7.8CSM Parameters 2.7.9Security Boot parameters Page 2.7.10Setup Mode [EZ Mode] 2.7.11Boot Option Priorities 2.7.12Boot Override 2.8.1ASUS EZ Flash 2 Utility 2.8.2ASUS SPD Information 2.8.3ASUS O.C. Profile 2.9Exit menu Page Federal Communications Commission Statement IC: Canadian Compliance Statement Canadian Department of Communications Statement VCCI: Japan Compliance Statement VCCI Class B Statement KC: Korea Warning Statement REACH ASUSTeK COMPUTER INC ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Germany and Austria)