Contents

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

v

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

vi

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

vii

ASUS contact information ............................................................

viii

P4P800-MX specifications summary..............................................

ix

Chapter 1: Product introduction

1.1

Welcome! ...........................................................................

1-2

1.2

Package contents ...............................................................

1-2

1.3

Special features..................................................................

1-2

1.4

Motherboard components ..................................................

1-4

1.5

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

1-8

1.6

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

1-9

 

1.7.1

Placement direction .............................................

1-10

 

1.7.2

Screw holes .........................................................

1-10

1.7

Motherboard installation ...................................................

1-10

1.8

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

1-11

 

1.8.1

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

1-11

 

1.8.2

Installing the CPU ................................................

1-12

1.9

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

1-13

 

1.9.1

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

1-13

 

1.9.2

Installing a DIMM .................................................

1-15

1.10

Expansion slots ................................................................

1-16

 

1.10.1

Standard interrupt assignments ...........................

1-16

 

1.10.2

IRQ assignments for this motherboard ................

1-16

 

1.10.3

PCI slots ..............................................................

1-17

1.11

Jumpers............................................................................

1-18

1.12

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

1-20

Chapter 2: BIOS information

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

2-2

2.1.1 Creating a bootable floppy disk .............................

2-2

2.1.2 Using AFUDOS to update the BIOS ......................

2-2

2.1.3 Using ASUS EZ Flash to update the BIOS ............

2-3

2.1.4 Recovering the BIOS with CrashFree BIOS 2 .......

2-4

2.2 BIOS Setup program ..........................................................

2-6

2.2.1

BIOS menu screen ................................................

2-7

2.2.2

Menu bar ................................................................

2-7

2.2.3

Navigation keys .....................................................

2-7

2.2.4

Menu items ............................................................

2-8

iii