Texas micro Ai5vpb User manual

AI5VP/AI5VPB

Pentium Baby AT Motherboard

User’s Manual

Version 1.1A

Contents

AI5VP/AI5VPB User’s Manual i

Contents

Chapter 1 Introduction......................................................1

Chapter 2 Specifications ....................................................2

Chapter 3 Hardware Description......................................4

3.1 Processor and CPU Voltage.....................................................6

3.2 L2 Cache Memory....................................................................6

3.3 Main Memory...........................................................................6

3.4 BIOS.........................................................................................8

3.5 Onboard PCI EIDE ..................................................................8

3.6 Onboard Multi-I/O ...................................................................8

3.7 DMA Channels.........................................................................9

3.8 I/O Port Address Map ..............................................................9

3.9 Interrupt Request Lines (IRQ)................................................10

Chapter 4 Hardware Settings..........................................11

4.1 SW2(1-8): CPU Frequency Selector ......................................13

4.2 JBAT1: CMOS RAM Discharge............................................16

4.3 SW1(1-4): CPU Voltage Selector ..........................................16

4.4 CN7 (7, 17): ATX Power On Switch (AI5VPB only)............17

Chapter 5 Installation ......................................................18

5.1 J4, J5: Serial Ports..................................................................20

5.2 CN2, CN4: Keyboard and PS/2 Mouse Connector ................20

5.3 J2: Parallel Port Connector.....................................................21

5.4 CN5: AT Power Connector....................................................21

5.5 CN6: ATX Power Supply Connector.....................................22

5.6 J3: Floppy Drive Connector ...................................................22

5.7 IDE1, IDE2: EIDE Connectors..............................................23

5.8 CN7: Front Bezel Connector..................................................24

5.9 J6: IrDA Connector................................................................26

5.10 J1: USB Connectors.............................................................26

Contents

ii AI5VP/AI5VPB User’s Manual

Chapter 6 BIOS Configuration.......................................27

6.1 BIOS Introduction..................................................................30

6.2 BIOS Setup.............................................................................30

6.3 Standard CMOS Setup ...........................................................32

6.4 BIOS Features Setup..............................................................35

6.5 Chipset Features Setup...........................................................38

6.6 Power Management Setup......................................................40

6.7 PNP/PCI Configuration..........................................................42

6.8 Load BIOS Defaults...............................................................44

6.9 Load Setup Defaults...............................................................44

6.10 Integrated Peripherals...........................................................45

6.11 Supervisor / User Password..................................................47

6.12 IDE HDD Auto Detection....................................................48

6.13 HDD Low Level Format.......................................................48

6.14 Save & Exit Setup ................................................................49

6.15 Exit Without Saving.............................................................49

Chapter 1 Introduction

AI5VP/AI5VPB User’s Manual 1

Chapter 1 Introduction

This manual is designed to give you information on the AI5VP/AI5VPB

Motherboard. It is divided into the following six sections:

•

••

•

Introduction

•

••

•

Specifications

•

••

•

Hardware Description

•

••

•

Hardware Settings

•

••

•

Installation

•

••

•

BIOS Configuration

Checklist

Please check that your package is complete and contains the items below. If

you discover damaged or missing items, please contact your dealer.

The AI5VP/AI5VPB Motherboard

This User’s Manual

1 IDE Ribbon Cable

1 Floppy Ribbon Cable

2 Serial Ribbon Cables*

1 Parallel Ribbon Cable

* Use the two serial cables provided to avoid compatibility problems.

Chapter 2 Specifications

2 AI5VP/AI5VPB User’s Manual

Chapter 2 Specifications

Based on VIA’s VPX chipset, the AI5VP/AI5VPB is a Baby AT Pentium

motherboard that supports all the features to make a high performance

desktop system. In addition to standard PIO and DMA mode operation,

the AI5VP/AI5VPB features Ultra DMA/33 for improved disk I/O

throughput. The main features of this motherboard are listed as follows:

Main Processor

Intel Pentium/Pentium MMX* 90/100/120/133/150/166/200/233

Cyrix 6x86/6x86L P150+/P166+/P200+

Cyrix 6x86MX PR166/PR200/PR233/PR266

AMD K5 PR100/PR133/PR166

AMD K6/166, K6/200, K6/233

*Pentium MMX = P55C

Processor Upgrade

Intel P6 based Over Drive

L2 Cache

256KB or 512KB Pipelined Burst Synchronous SRAM onboard

Main Memory

Four 72-pin SIMM and one 168-pin DIMM sockets; up to 256MB

Memory Type

SIMMs: FPM (Fast Page Mode) or EDO (Extended Data Out)

SIMM Size: 4M, 8M, 16M, 32M, 64M

DIMMs: SDRAM (Synchronous DRAM)

DIMM Size: 8M, 16M, 32M

Chipset

VIA’s VPX-B (AI5VPB) or VPX-A (AI5VP) chipset with built-in

PCI EIDE . The VPX-A does not support ACPI; only the VPX-B does.

Onboard I/O

Winbond W83877 for two serial, one parallel, and one floppy drive

interface, support IrDA device.

Chapter 2 Specifications

AI5VP/AI5VPB User’s Manual 3

Onboard Bus Mastering EIDE

Two EIDE interfaces for up to four devices, support PIO Mode 3/4 or

Ultra DMA/33 IDE Hard Disk and ATAPI CD-ROM.

BIOS

Licensed BIOS with additional features:

• FLASH EEPROM (128KB) for BIOS update

• ISA Plug and Play (PnP) extension

• Power management

Windows 95 Shut-Down

This allows the PC to power off via Windows 95 operating system.

(This feature applies for AI5VPB and requires ATX power supply.)

PC’97 Compliance

With the VPX-B chipset, the BIOS and hardware levels of AI5VPB

meet PC’97 compliance. The new PC’97 requirements for systems

and components are based on the following high-level goals: Support

for Plug and Play compatibility and power management for

configuring and managing all system components, and 32-bit device

drivers and installation procedures for both Windows 95 and

Windows NT.

Expansion Slots

Four 32-bit PCI slots

Three 16-bit ISA slots

Form Factor

3/4 Baby AT

8.6” x 8.6” (22cm x 22cm)

Chapter 3 Hardware Description

4 AI5VP/AI5VPB User’s Manual

Chapter 3 Hardware Description

This chapter briefly describes each of the major features of the

AI5VP/AI5VPB motherboard. The layout of the board is shown in Figure

1 which shows the locations of the key components. The topics covered in

this chapter are as follows: