Asus F2A55MCSM 39

5.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

F2A55-M Serial port (COM) connector

The COM module is purchased separately.

6.CPU and chassis fan connectors (3-pin PWR FAN, 4-pin CPU_FAN, and 4-pin CHA_FAN)

Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.

PWR_FAN CPU_FAN

Rotation +12V GND

CPU FAN PWM CPU FAN IN CPU FAN PWR GND

CHA_FAN

F2A55-M

GND

CHA FAN PWR

CHA FAN IN

CHA FAN DC mode

F2A55-M Fan connectors

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors!

•The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.

•Only the 4-pin CPU fan & CHA fan support ASUS FanXpert feature.

ASUS F2A55-M

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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-Mspecifications summary Page Page Package contents 1.1.1Product highlights 1.1.2DIGI+VRM 1.1.3Innovative ASUS features 1.1.4ASUS Quiet Thermal Solution 1.1.5ASUS EZ DIY 1.2Before you proceed 1.3.1Placement direction 1.3.2Screw holes 1.3.3Motherboard layout 1.3.4Layout contents 1.4.1Installing the APU 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 1.5.4Removing 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 slots 1.7Jumpers 1.8.1Rear panel connectors Page 1.8.2Internal connectors Page Page Page Page Page 1.9Onboard switches 1.10Onboard LEDs Page 1.11.1Installing an operating system 1.11.2Support DVD information 2.1.1ASUS Update utility 2.1.2ASUS EZ Flash 2.1.3ASUS CrashFree BIOS 3 utility 2.1.4ASUS BIOS Updater Page 2.2BIOS setup program BIOS menu screen 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 Page 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 2.5.6APM 2.5.7Network Stack 2.6.2CPU / PWR / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A] 2.6.3CPU Q-FanControl [Enabled] 2.6.4CHA_FAN Q-FanControl [Enabled] 2.6.5CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage 2.6.6Anti Surge Support [Enabled] 2.7Boot menu 2.7.1Bootup NumLock State [On] 2.7.2Full Screen Logo [Enabled] 2.7.3Fast Boot [Enabled] 2.7.4Post Logo Delay Time [3 sec] 2.7.5Wait for ‘F1’ If Error [Enabled] 2.7.7Next boot after AC Power Loss [Normal Boot] 2.7.8CSM Parameters 2.7.9Security Boot parameters 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 ASUS Recycling/Takeback Services ASUSTeK COMPUTER INC ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Germany and Austria)