VIA Technologies IB781 User manual

IB781

VIA CLE266 Full Size CPU Card

USER’S MANUAL

Version 1.0B

ii IB781 User’s Manual

Acknowledgments

Award is a registered trademark of Award Software International,

Inc.

PS/2 is a trademark of International Business Machines

Corporation.

Microsoft Windows is a registered trademark of Microsoft

Corporation.

Winbond is a registered trademark of Winbond Electronics

Corporation.

All other product names or trademarks are properties of their

respective owners.

IB781 User’s Manual iii

Table of Contents

Introduction....................................................... 1

Product Description.......................................................... 1

Specifications................................................................... 2

Board Dimensions............................................................ 3

Installations....................................................... 5

Installing the Memory (DDR DIMM)............................... 6

Setting the Jumpers .......................................................... 7

Connectors on IB781...................................................... 11

BIOS Setup...................................................... 23

Drivers Installation...................................... 45

Appendix........................................................... 51

A. I/O Port Address Map................................................ 51

B. Interrupt Request Lines (IRQ).................................... 52

C. Watchdog Timer Configuration.................................. 53

iv IB781 User’s Manual

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INTRODUCTION

IB781 User’s Manual 1

Introduction

Product Description

IB781 is a high-performance flexible embedded board based on the VIA

CLE 266 chipset. The chipset is based on an innovative and scaleable

architecture with proven reliability. It is a two-chip set consisting of the

VT8623 North Bridge Controller and VT8235 South Bridge Controller.

IB781 supports the Socket 370 processors with speeds of up to 1.4GHz

and with front side bus of up to 133MHz. Two 184-pin DDR DIMM

sockets support can accommodate a total memory size of 2GB.

Combining a fully integrated video processing feature set, Integrated

UniChrome™ 2D/3D graphics engine and ultra efficient VIA DDR

memory controller, the VIA Unichrome™ CLE266 Chipset is designed

to enable high quality digital video streaming and DVD playback in a

new generation of small form factor PCs and IA devices. Shared

memory capacity is up to 64MB.

One 10/100Mbps Ethernet onboard is supported by the Realtek 8100C

single chip Ethernet controller or it can replaced with an optional

RTL8110s-32 Gigabit LAN.

With dimensions of 338mm x 122mm,IB781 has other features such as

Watchdog timer, DiskOnChip socket, four USB 1.1/2.0 ports.

INTRODUCTION

2IB781 User’s Manual

Specifications

Form Factor PICMG (Full Size CPU Card)

CPU Type Socket 370 (Intel PIII / Celeron)

CPU Voltage 1.1V~1.85V

System Speed 533MHz~1.4GHz

CPU External

Clock 66/100/133Mhz

Green /APM APM1.2

CPU Socket Socket 370

Chipset North Bridge: 548 pin VT8623 (2D/3D)(CLE266)

South Bridge: 487 pin VT8235 CD

BIOS Award BIOS, 2Mbit support ACPI function

Cache CPU integrated

Memory

two 184-pin DDR DIMM socket supports ,

Supports DDR200/266 DDR DIMM Max.2GB

VGA VT8623 Integrated AGP 4X, 2D 128 Bit 3D 128

Bit VGA controller, Analog

MPEG-2

Hardware Slice Layer, IDCT & Motion Compensation

LCD interface Support 24-bit TTL LCD, 18BIT LVDS

LAN RTL 8100C(L)(10/100) or RTL8110s-32

(10/100/1000) Single

Chip Ethernet Controller.

Sound VT8235 Built Sound controller + AC97 Codec

ALC655 (Line-out, Line-in, Mic)

LPC I/O Winbond 83697HF: Parallel x1, COM1, COM2,

FDC 2.88MB (3 Mode Support), Hardware

monitor (3 thermal inputs, 8 voltage monitor

inputs, VID0-4, 1 chassis open detection, 3 Fan

Header)

PCI TO ISA

Bridge ITE IT8888

ISA High Drive Yes

Disk On Chip Yes

UART/16550A COM1: RS232

COM2: RS232/422/485

RTC/CMOS VT8235 built-in

Battery Lithium battery

Keyboard/Mouse VT8235 built-in

IDE VT8235 built-in, IDE1, 2 (Ultra DMA

33/66/100/133)

USB Supports 1.1/2.0 USB 4 ports

Watchdog Timer 256 levels

INTRODUCTION

IB781 User’s Manual 3

Board Dimensions

INTRODUCTION

4IB781 User’s Manual

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INSTALLA

TIONS

IB781 User’s Manual 5

Installations

This section provides information on how to use the jumpers and

connectors on the IB781 in order to set up a workable system. The topics

covered are:

Installing the Memory (DDR DIMM)............................... 6

Setting the Jumpers .......................................................... 7

Connectors on IB781...................................................... 11

INSTALLATIONS

6IB781 User’s Manual

Installing the Memory (DDR DIMM)

The IB781 board supports one 184-pin DDR DIMM socket for a

maximum total memory of 1GB in DDR DRAM type. The memory

module capacities supported are 64MB, 128MB, 256MB, 512MB and

1GB.

Installing and Removing DIMMs

To install the DDR DIMM, locate the memory slot on the board and

perform the following steps:

1. Hold the DIMM so that the two keys of the DIMM align with those on

the memory slot.

2. Gently push the DIMM in an upright position until the clips of the slot

close to hold the DIMM in place when the DIMM touches the bottom

of the slot.

3. To remove the DDR module, press the clips with both hands.

Top View of DIMM Socket

DDR Module

Lock

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