Abit AR5E User Manual

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Table of Contents

Chapter 1 Introduction of AR5 Features

¬ Specifications .....................................................................

1-2

- Layout diagram ..................................................................

1-4

® System block diagram.........................................................

1-5

Chapter 2 Installing the Mainboard

 

¬ Standard External Connectors ............................................

2-3

- Jumpers and Switches.......................................................

2-10

® Presentation and Installation of the CPU...........................

2-11

¯ Installing System Memory¡i DRAM Memory¡j ...........

2-14

Chapter 3 Introduction of BIOS

 

¬ CPU setup¡i CPU SOFT MENU™¡j .............................

3-3

- Standard CMOS Setup Menu .............................................

3-9

® BIOS Features Setup Menu ..............................................

3-11

¯ Chipset Features Setup Menu ...........................................

3-17

° Power Management Setup Menu ......................................

3-19

± PCI & Onboard I/O Setup ................................................

3-23

² Load BIOS Defaults .........................................................

3-28

³ Load Setup Defaults.........................................................

3-28

´ Password Setting..............................................................

3-29

µ IDE HDD Auto Detection................................................

3-30

Appendix A Quick Installation

Appendix B Intel Pentium CPUs

Appendix C AMD-K5 CPUs

Appendix D Cyrix 6x86 CPUs

Appendix E General Discussion about HDD Installation

Part No:MN-086-B21-21

Rev:1.01

Appendix F Technical Support

Introduction of AR5 Features

1-1

Chapter 1 Introduction of AR5

Features

The AR5 have been especially designed for File server, Workstation and Professional users. It can support a wide range of processors, including all Intel CPUs (P54C) and Intel CPUs with MMX (P55C), as well as all AMD-K5and Cyrix 6x86/6x86L CPUs. It also takes into account, as much as possible, all future CPUs.

The AR5 uses SOFT MENU™ technology, which means that all the parameters can be configured without using DIP switches or jumpers. The configuration is entirely achieved through a “Soft Switch” that allows the user to set CPU speed and operating voltage with ease.

The AR5 uses Intel 430VX series chipsets, and has 256K or 512K Level-2Pipeline Burst SRAM on board. It also provides an extension slot allowing the user to upgrade Pipeline Burst SRAM to 512K.

Two 168-pinDIMM slots and four72-pinSIMM slots meet the requirements for all memory configurations required by high level computing. The168-pinDIMM slots support traditional Fast Page and EDO DRAM as a memory standard for next generation64-bitsystems. The two168-pinDIMM slots have been reserved to meet requirements for both present and future upgrades.

The AR5 also provides two Universal Serial Bus (USB) ports and meets the Concurrent PCI Rev. 2.1 standard. It also supports IDE interface for Fast HDD (Mode 0~4), as well as IDE Bus Master. These features also meet present and future interface standards and needs.

System BIOS features include Plug-and-Play(PnP), Advanced Power Management (APM), the newest Desktop Management Interface (DMI), as well as AR5’s unique CPU operating frequency and voltage setup feature in order to meet modern computing demands.

1-2

Chapter 1

¬Specifications

1. CPU frequency and voltage setup with CPU “SOFT MENU™ ”

Setup of the mainboard’s frequency and voltage without DIP Switches or Jumpers.

Modification of CPU operating voltage and frequency through software configuration.

Modification of CPU operating voltage and frequency directly on screen.

2.Uses ZIF CPU Socket 7 for easy CPU installation

Three voltage regulator/cooling plate sets for a more stable CPU operating environment

Supports Intel Pentium® CPUs: 75MHz to 200MHz and P55C CPUs with MMX

Supports all AMD sixth generation AMD-K5™CPUs: 75MHz to

 

100MHz

Supports all Cyrix sixth generation 6x86™ CPUs: P120+, P133+,

 

P150+, P166+, P200+

Reserved circuitry supports future sixth generation CPUs

3.Chipset

Intel 430VX chipset

Supports standard version PCI 2.1

4.L2 Cache Memory

256K or 512K of cache memory (Pipeline Burst SRAM)

5.System DRAM

Four 72-pinSIMM sockets: support FP and EDO DRAM

Two 168-pinDIMM sockets: support FP, EDO and Synchronous DRAM (SDRAM)

DIMM sockets use PC modules (3.3V Unbuffered DRAM)

Up to 128MB memory configuration possible

6.System BIOS

AWARD BIOS

Supports Plug-and-Play(PnP)

Supports Advanced Power Management (APM)

Supports Desktop Management Interface (DMI)

Introduction of AR5 Features

1-3

7. Multi I/O features

Two Universal Serial Bus (USB) ports

Four fast IDE channels (PIO mode 0~4 and Bus Master)

One EPP/ECP parallel port and one 16550 serial port

Two floppy disk drive connectors (FDD) (360K, 720K, 1.2M, 1.44M and 2.88M)

8.Other features

Standard ATX architecture dimensions

Four ISA bus slots and four PCI bus slots

Supports 3-MODE for a special Japanese floppy disk drive

Supports two bootable hard disks--ableto run two different operating systems

Note: All brand names and trademarks are the property of their respective owners.

1-4

Chapter 1

- Layout diagram

Fig 1-1Layout diagram

Introduction of AR5 Features

1-5

® System block diagram

Pentiumä Processor

3.3V

Host BUS

 

 

 

 

 

Control

 

 

 

 

 

Address

 

 

 

 

 

Data

Second

 

 

 

 

Level Cache

 

 

 

 

CACHE

Ctrl

 

Addr

Main

 

 

Ctrl

Data

(SRAM)

 

TVX

Memory

Tag Ctrl

 

TDX

 

 

 

(DRAM)

 

 

 

 

 

 

 

TIO[0..7]

 

 

 

 

TAG

 

 

Plink

 

 

PCI BUS

 

TXD Ctrl

 

 

 

Control

 

 

 

Address/Data

 

Fast

USB

USB

PCI Device(s)

IDE

1

2

 

CD ROM &

 

PIIX3

 

 

Hard Disk

 

ISA Device(s)

Universal Serial Bus

ISA BUS

ALi

 

LPT

 

 

 

Serial

M5123

FDC

Fig. 1-2System block diagram

1-6

Chapter 1

Installing the Mainboard

2-1

Chapter 2 Installing the Mainboard

This AR5 mainboard not only provides all standard equipment for classic personal computers, but also provides great flexibility for meeting future upgrade demands. This chapter will introduce step by step all the standard equipment and will also present, as completely as possible future upgrade capabilities. This mainboard is able to support all Intel Pentium including P55C with MMX, Cyrix 6x86, 6x86L and AMD-K5processors now on the market. (For details, see specifications in Chapter 1.) However, we cannot guarantee that the description given in this manual on the circuitry of your mainboard will work for processors not listed in Chapter 1. For example, the operating voltage of Cyrix’s next generation CPUs is unknown at the present time. Thus we were not able to include these specifications in your motherboard. We will supply further information about CPU support when new CPUs arrive on the market.

This chapter is organized according the following features: ΠStandard external connectors

Jumpers and switches

Ž Presentation and Installing of the CPU.

Installing cache memory--Ifyou don’t want to upgrade the cache memory you can skip this chapter.

Installing the system memory.

NNNN

Before proceeding with the installation

Before installing the mainboard please be sure to turn off or disconnect the power supply unit. Before making any modifications to the hardware configuration of the mainboard, the power supply to any areas of the mainboard you plan to modify should be turned off to avoid unnecessary damage to the hardware.

2-2

Chapter 2

&

User friendly instructions

Our objective is to enable the novice computer user to perform the installation by themselves. We have attempted to write this document in a very clear, concise and descriptive manner to help overcome any obstacles you may face during installation. Please read our instructions carefully and follow them carefully step-by-step.