Asus F2A55-M LK, F2A55-M LK PLUS 40

9.USB 2.0 connectors (10-1 pin USB56, USB78, USB910)

These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specification that supports up to

480Mbps connection speed.

USB910	USB78	USB56
USB+5V USB_P10- USB_P10+ GND NC	USB+5V USB_P8- USB_P8+ GND NC	USB+5V USB_P6- USB_P6+ GND NC

F2A55-M LK PLUS

PIN 1

PIN 1

USB+5V

USB P9-

USBP9+ GND

F2A55-M LK PLUS USB2.0 connectors

USB+5V USB_P7- USB_P7+ GND

PIN 1	USB+5V USB P5- USB P5+	GND

Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!

The USB 2.0 module is purchased separately.

10.Serial port connector (10-1 pin COM)

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.

COM

CTS

DSR

DTR

RXD

PIN 1

DCD TXD GND RTS RI

F2A55-M LK PLUS

F2A55-M LK PLUS Serial port (COM) connector

The COM module is purchased separately.

1-28	Chapter 1: Product introduction

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-MLK Series specifications summary Page Package contents Page 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 1.5.3Installing a DIMM 1.6.1Installing an expansion card 1.6.2Configuring an expansion card 1.6.3PCI slot 1.6.4PCI Express x1 slot 1.6.5PCI Express x16 slot Page 1.7Jumpers Page 1.8.1Rear panel ports 1.8.2Internal connectors Page Page Page Page Page 1.9.1Installing an operating system 1.9.2Support 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] 2.4.6GPU Boost [Auto] 2.4.7OC Tuner 2.4.8DRAM Timing Control 2.4.9CPU Voltage [Offset Mode] 2.4.10DRAM Voltage [Auto] 2.4.11SB 1.1V Voltage [Auto] 2.4.121.1VSB Voltage [Auto] 2.4.13APU1.2V Voltage [Auto] 2.4.14VDDA Voltage [Auto] Page 2.5.1CPU Configuration 2.5.2SATA Configuration 2.5.3USB Configuration 2.5.4NB Configuration 2.5.5Onboard Devices Configuration Page 2.5.6APM 2.5.7Network Stack 2.6.1CPU Temperature / MB Temperature [xxxºC/xxxºF] 2.6.2CPU / Chassis fan Speed [xxxx RPM] or [Ignore] / [N/A] 2.6.3CPU Q-FanControl [Enabled] 2.6.4CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage 2.6.5Anti 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)