Contents

Notices..........................................................................................................

v

Safety information.......................................................................................

vi

About this guide.........................................................................................

vii

AT3N7A-I specifications summary..........................................................

viii

Chapter 1:

Product introduction

 

1.1

Before you proceed......................................................................

1-1

1.2

Motherboard overview.................................................................

1-2

 

1.2.1

Motherboard layout..........................................................

1-2

 

1.2.2

Layout contents...............................................................

1-2

1.3

Central Processing Unit (CPU)....................................................

1-3

1.4

System memory............................................................................

1-3

 

1.4.1

Overview..........................................................................

1-3

 

1.4.2

Memory configurations....................................................

1-4

1.5

Expansion slot..............................................................................

1-7

 

1.5.1

Installing an expansion card............................................

1-7

 

1.5.2

Configuring an expansion card........................................

1-7

 

1.5.3

PCI slot............................................................................

1-7

1.6

Jumpers

.........................................................................................

1-8

1.7

Connectors....................................................................................

1-9

 

1.7.1

Rear panel connectors....................................................

1-9

 

1.7.2

Internal connectors.........................................................

1-11

1.8

Software support........................................................................

1-16

 

1.8.1

Installing an operating system.......................................

1-16

 

1.8.2

Support DVD information...............................................

1-16

Chapter 2:

BIOS information

 

2.1

Managing and updating your BIOS.............................................

2-1

 

2.1.1

ASUS Update utility.........................................................

2-1

 

2.1.2

ASUS EZ Flash 2............................................................

2-2

 

2.1.3

ASUS CrashFree BIOS...................................................

2-3

2.2

BIOS setup program.....................................................................

2-4

2.3

Main menu.....................................................................................

2-4

 

2.3.1

System Time....................................................................

2-5

 

2.3.2

System Date....................................................................

2-5

 

2.3.3

SATA 1~3, ESATA............................................................

2-5

iii