Acrosser AR-B1642 User Manual

AR-B1642 User’s Guide

AR-B1642

Socket-370 Pentium III

INDUSTRIAL GRADE

CPU BOARD

User’s Guide

Edition: 1.01

Book Number: AR-B1642-05.0810

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AR-B1642 User’s Guide

Table of Contents

0. PREFACE ...................................................................................3

0.1 COPYRIGHT NOTICE AND DISCLAIMER .....................................................................................................................................3

0.2 WELCOME TO THE AR-B1642 CPU BOARD................................................................................................................................3

0.3 BEFORE YOU USE THIS GUIDE ...................................................................................................................................................3

0.4 RETURNING YOUR BOARD FOR SERVICE................................................................................................................................. 3

0.5 TECHNICAL SUPPORT AND USER COMMENTS ........................................................................................................................3

0.6 STATIC ELECTRICITY PRECAUTIONS ........................................................................................................................................3

1. INTRODUCTION ........................................................................5

1.1 SPECIFICATIONS...........................................................................................................................................................................6

1.2 PACKING LIST................................................................................................................................................................................ 6

2. INSTALLATION ..........................................................................7

2.1 AR-B1642'S LAYOUT .....................................................................................................................................................................7

2.2 INSTALLING THE CPU................................................................................................................................................................... 8

2.3 INSTALLING THE MEMORY MODULE - DIMM ............................................................................................................................. 9

2.4 CMOS BATTERY HEADER (J6) .....................................................................................................................................................9

3. CONNECTION..........................................................................10

3.1 EXTERNAL / INTERNAL KEYBOARD AND MOUSE CONNECTOR / HEADER (KB1 / J2)........................................................ 10

3.2 KEYBOARD AND MOUSE LOCK / UNLOCK HEADER (J11 / J12) .............................................................................................10

3.3 EXTERNAL / INTERNAL SERIAL PORT CONNECTOR / HEADER (COM1 / COM2) ................................................................10

3.4 LAN CONNECTOR (J7) ................................................................................................................................................................10

3.5 VGA CONNECTOR (VGA1).......................................................................................................................................................... 11

3.6 CPU FAN POWER HEADER (FAN2)............................................................................................................................................11

3.7 HARD DISK DRIVE 40-PIN HEADER (IDE1) ...............................................................................................................................11

3.8 HARD DISK DRIVE 44-PIN HEADER (IDE2) ...............................................................................................................................12

3.9 HARD DISK INDICATIVE LED HEADER (LED1) .........................................................................................................................12

3.10 AUDIO LINE IN / LINE OUT HEADER (J13)...............................................................................................................................12

3.11 USB HEADER (USB1) ................................................................................................................................................................12

3.12 FLOPPY DISK DRIVE HEADER (J8).......................................................................................................................................... 13

3.13 PARALLEL PORT HEADER (J3) ................................................................................................................................................ 13

3.14 LCD HEADER – LVDS INTERFACE (LVDS1)............................................................................................................................ 13

3.15 LCD DRIVING VOLTAGE HEADER (J1) ....................................................................................................................................14

3.16 RESET BUTTON HEADER (J4)..................................................................................................................................................14

3.17 AT POWER HEADER (PW1) ...................................................................................................................................................... 14

3.18 DDR SDRAM MODULE SOCKET (DIM1)...................................................................................................................................14

3.19 CPU SOCKET (U2) .....................................................................................................................................................................14

4. WATCHDOG TIMER ................................................................15

4.1 WATCHDOG TIMER SETTING ....................................................................................................................................................15

5. BIOS CONSOLE.......................................................................16

5.1 MAIN..............................................................................................................................................................................................16

5.2 ADVANCED...................................................................................................................................................................................17

5.3 PERIPHERALS .............................................................................................................................................................................19

5.4 PNP/PCI ........................................................................................................................................................................................20

5.5 PC HEALTH ..................................................................................................................................................................................20

5.6 BOOT ............................................................................................................................................................................................21

5.7 EXIT...............................................................................................................................................................................................21

5.8 BIOS UPDATE ..............................................................................................................................................................................22

Appendix A. IO Address Mapping.................................................23

Appendix b. INTERRUPT REQUEST (IRQ) .................................24

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AR-B1642 User’s Guide

0. PREFACE

0.1 COPYRIGHT NOTICE AND DISCLAIMER

This document is copyrighted, 2005, by Acrosser Technology Co., Ltd. All rights are reserved. No part of this
manual may be reproduced, copied, transcribed, stored in a retrieval system, or translated into any language or
computer language in any form or by any means, such as electronic, mechanical, magnetic, optical, chemical,
manual or other means without the prior written permission or original manufacturer. Acrosser Technology assumes
no responsibility or warranty with respect to the content in this manual and specifically disclaims any implied
warranty of merchantability or fitness for any particular purpose. Furthermore, Acrosser Technology reserves the
right to make improvements to the products described in this manual at any times without notice. Such revisions will
be posted on the Internet
Possession, use, or copy of the software described in this publication is authorized only pursuant to valid written
license from Acrosser or an authorized sub licensor.

ACKNOWLEDGEMENTS
Acrosser, AMI, IBM PC/AT, Windows, MS-DOS…are registered trademarks.
All other trademarks and registered trademarks are the property of their respective owners.

0.2 WELCOME TO THE AR-B1642 CPU BOARD

This guide introduces the Acrosser AR-B1642 CPU Board.
Use information provided in this manual describes this card’s functions and features. It also helps you start, set up
and operate your AR-B1642. General system information can also be found in this publication.
Please refer to the chapter introduction if you have not already installed this board. Check the packing list before
you install and make sure the accessories are completely included.

0.3 BEFORE YOU USE THIS GUIDE

Please refer to the Chapter 1, “Introduction” in this guide, if you have not already installed this AR-B1642. Check the
packing list before you install and make sure the accessories are completely included.
AR-B1642 CD provides the newest information regarding the CPU card. Please refer to the files of the enclosed
utility CD. It contains the modification and hardware & software information, and adding the description or
modification of product function after manual printed.

0.4 RETURNING YOUR BOARD FOR SERVICE

If your board requires any services, contact the distributor or sales representative from whom you purchased the
product for service information. If you need to ship your board to us for service, be sure it is packed in a protective
carton. We recommend that you keep the original shipping container for this purpose.
You can help assure efficient servicing for your product by following these guidelines:

1. Include your name, address, daytime telephone, facsimile number and E-mail.

2. A description of the system configuration and/or software at the time of malfunction.

3. A brief description of the problem occurred.

0.5 TECHNICAL SUPPORT AND USER COMMENTS

Users comments are always welcome as they assist us in improving the quality of our products and the readability
of our publications. They create a very important part of the input used for product enhancement and revision.
We may use and distribute any of the information you provide in any way appropriate without incurring any
obligation.
You may, of course, continue to use the information you provide.
If you have any suggestions for improving particular sections or if you find any errors on it, please send your
comments to Acrosser Technology Co., Ltd. or your local sales representative and indicate the manual title and
book number.
Internet electronic

[e-mail]

0.6 STATIC ELECTRICITY PRECAUTIONS

Before removing the board from its anti-static bag, read this section about static electricity precautions. Static

(WWW.ACROSSER.COM) as soon as possible.

mail to:[e-mail]

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AR-B1642 User’s Guide

electricity is a constant danger to computer systems. The charge that can build up in your body may be more than
sufficient to damage integrated circuits on any PC board. It is, therefore, important to observe basic precautions
whenever you use or handle computer components. Although areas with humid climates are much less prone to
static build-up, it is always best to safeguard against accidents that may result in expensive repairs. The following
measures should be sufficient to protect your equipment from static discharge:
Touch a grounded metal object to discharge the static electricity in your body (or ideally, wear a grounded wrist
strap).
When unpacking and handling the board or other system components, place all materials on an anti-static surface.
Be careful not to touch the components on the board, especially the “golden finger” connectors on the bottom of the
board.

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AR-B1642 User’s Guide

1. INTRODUCTION

Welcome to the AR-B1642 PCI Single Board Computer. AR-B1642 provides a flexible system that allows users to
choose the performance of system as their wish. AR-B1642 supports Socket-370 Pentium III (Coppermine and
Tualatin), Intel Celeron, Via C3 processors with speed up to 1.26GHz with FSB 133/100/66 MHz. AR-B1642 is
equipped with high performance VIA ® advanced chipset CLE266 version CD (North Bridge VT8623-CE plus South
Bridge VT8235-CD). This product is designed for the system manufacturers, integrators, or VARs that want to
provide all the performance, reliability, and quality at a reasonable price.

AR-B1642 provides one 184-pin DIMM socket that supports up to 1 GB DDR266/DDR200 (PC2100/PC1600)
Double Data Rate (DDR) SDRAM. The DDR interface allows zero wait state bursting between the DRAM and the
data buffer at 100/133 MHz.

AR-B1642 also provides on board VGA (CRT and 18-bit LVDS), one LAN that support 100 Base-TX/10 Base-T,
AC97 Codec for Audio Line in and Line out, and two USB 2.0 ports with poly fuse protection.

The most eyes popping characteristic of AR-B1642 is its graphic/video accelerator that is integrated into CLE266
North Bridge. It provides internal AGP 4X performance along with 128-bit 2D Graphics Accelerator, 128-bit 3D
Graphics Accelerator and DVD playback with MPEG-2 base.

Based on all of the features above, AR-B1642 is an ideal solution for consumers that are looking for high-speed
performances with flexible option for further upgrade at a reasonable price.

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AR-B1642 User’s Guide

1.1 SPECIFICATIONS

 CPU: Socket-370 (Pentium III, Pentium III Tualatin, Intel Celeron, Via C3).
 DMA channels: 7.
 Interrupt levels: 15.
 Chipset: VIA
 Memory: Provide one 184-pin DIMM socket, which supports DDR266/200 DDR SDRAM. The memory

capability can up to 1GB.

 VGA Controller: Embedded VGA controller.
 Display Interface: CRT – D-SUB 15-pin connector. Resolution up to True Color (32 bits) 1400x1050.

 UltraDMA-133/100/66/33 IDE Interface: Two Enhanced IDE channels. The south bridge VT8235 supports

UltraMDA-133/100/66/33 IDE interface. To support UltraDMA-133/100/66/33 Hard disk drive, a specified
cable (80-conductor ribbon cable) must be available.

 Floppy disk drive interface: Supports 2.88 MB, 1.44MB, 1.2MB, 720KB, or 360KB floppy disk drive.
 Serial ports: Two high-speed 16550 compatible UARTs ports with 16-byte send/receive FIFOs.

COM1: One D-SUB 9-pin connector.
COM2: On-board one 2x5x2.54mm box header.
 Parallel port: On-board one 2x13x2.0mm pin header that supports one IEEE1284 compatible Bi-directional

ports.

 USB port: On-board one 2x5x2.54mm pin header that supports two USB 2.0 compatible ports.
 Audio: Onboard AC’97 Codec: Supports two channel Left/Right Line in/Line out.
 Watchdog timer: Software programmable 1~255 sec(s) / minute(s).
 On-board Integrated Fast Ethernet: Meets IEEE 802.3 and 100BASE-TX/10BASE-T standards.
 PS/2 Keyboard Port & PS/2 Mouse Port: One PS/2 connector and On-board one JST2.0mm 6-pin header.
 Power Consumption: +5V@4.0A, +12V@2.0A.

Main board: AR-B1642.

Memory: KINGSTONE KVR400X64C3A/256MB.
HDD: HITACHI HDS722512VLAT20.

OS: Windows 2000 professional service pack 4.
Test program: 3Dmark2001
Note: Different hardware or software choice will cause different power consumption.

 Operating Temperature: 0℃ ~ 60℃ (CPU needs Cooling Fan)

®

CLE266 (VT8623 Integrated 2D, 3D, and MPEG-2 graphics accelerator and VT8235).

LCD – for 18-bit LVDS interface. 2x13x2.00mm box header connector. Resolution can
up to 1280x1024 (SXGA).

Test system list as below:

CPU: INTEL Pentium Ⅲ 700MHz.

1.2 PACKING LIST

In addition to this User's Manual, the AR-B1642 package includes the following items:

 The quick setup manual.
 1 AR-B1642 CPU board.
 1 Software utility CD.
 1 Hard disk drive adaptable cable for 3.5” hard disk.
 1 Hard disk drive adaptable cable for 2.5” hard disk.
 1 Floppy disk drive adaptable cable.
 1 Keyboard / Mouse adaptable cable.
 1 USB adaptable cable mounted on one bracket.
 1 Audio adaptable cable.
 1 D-SUB 9-pin plus D-SUB 25-pin adaptable cable mounted on one bracket.

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AR-B1642 User’s Guide

2. INSTALLATION

This chapter describes how to install the AR-B1642. At first, the layout of AR-B1642 is shown, and the unpacking
information that you should be careful is described. The following lists the jumpers and switches setting for the
AR-B1642’s configuration.

2.1 AR-B1642'S LAYOUT

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AR-B1642 User’s Guide

2.2 INSTALLING THE CPU

The AR-B1642 supports Intel Pentium III (FC-PGA/FC-PGA2) and Celeron processors. The Board uses a CPU
socket called Socket-370 for easy CPU installation. The CPU should always have a Heat Sink and a cooling fan
attached to prevent overheating.

CPU Installation Procedures:

1. Pull the lever sideways away form the socket. Then, raise the lever up to a 90-degree angle.

2. Look for the gold arrow. The gold arrow should point towards the end of lever. The CPU will only fit in the correct
orientation.

3. Hold the CPU down firmly, and then close the lever to complete the installation.

NOTE: Ensure that the CPU heat sink and the CPU top surface are in total contact to avoid CPU overheating

problem that would cause your system to hang or be unstable.

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AR-B1642 User’s Guide

2.3 INSTALLING THE MEMORY MODULE - DIMM

The AR-B1642 supports one 184-pin DIMM socket for a maximum total memory of 1GB in DDR SDRAM type. The
memory module capacities supported are 128MB, 256MB, 512MB, and 1GB.
Installing and Removing DIMM:
To install the DIMM, locate the memory socket on the board and perform the following steps:
Hold the DIMM so that the two keys of the DIMM align with those on the memory slot.
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.
To remove the DIMM, press the clips with both hands.

DDR SDRAM MODULE SOCKET (DIM1)

Lock

Lock

Lock Lock

Top View of DIMM Socket

2.4 CMOS BATTERY HEADER (J6)

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AR-B1642 User’s Guide

3. CONNECTION

This chapter describes how to connect peripherals, switches and indicators to the AR-B1642 board.

3.1 EXTERNAL / INTERNAL KEYBOARD AND MOUSE CONNECTOR / HEADER (KB1

/ J2)

KB1

J2

3.2 KEYBOARD AND MOUSE LOCK / UNLOCK HEADER (J11 / J12)

PIN SIGNAL

1 KB DATA
2 MS DATA
3 +5V
4 GND
5 KB CLK
6 MS CLK

PIN SIGNAL

1 MS DATA
2 KB DATA
3 GND
4 +5V
5 MS CLK
6 KB CLK

3.3 EXTERNAL / INTERNAL SERIAL PORT CONNECTOR / HEADER (COM1 / COM2)

COM1

COM2

PIN SIGNAL PIN SIGNAL

1 /DCDA 6 /DSRA
2 RXDA 7 /RTSA
3 TXDA 8 /CTSA
4 /DTRA 9 /RIA
5 GND

PIN SIGNAL PIN SIGNAL

1 /DCDB 6 /DSRB
2 RXDB 7 /RTSB
3 TXDB 8 /CTSB
4 /DTRB 9 /RIB
5 GND

3.4 LAN CONNECTOR (J7)

PIN SIGNAL PIN SIGNAL

1 TX+ 5 NC
2 TX- 6 RX­3 RX+ 7 NC
4 NC 8 NC

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3.5 VGA CONNECTOR (VGA1)

PIN SIGNAL PIN SIGNAL

1 RED 9 +5V
2 GREEN 10 GND
3 BLUE 11 NC
4 NC 12 SDA
5 GND 13 HSYNC
6 GND 14 VSYNC
7 GND 15 SCL
8 GND

3.6 CPU FAN POWER HEADER (FAN2)

3.7 HARD DISK DRIVE 40-PIN HEADER (IDE1)

PIN SIGNAL PIN SIGNAL

1 /RESET 2 GND
3 PDATA 7 4 PDATA 8
5 PDATA 6 6 PDATA 9
7 PDATA 5 8 PDATA 10

9 PDATA 4 10 PDATA 11
11 PDATA 3 12 PDATA 12
13 PDATA 2 14 PDATA 13
15 PDATA 1 16 PDATA 14
17 PDATA 0 18 PDATA 15
19 GND 20 N.C
21 PDDREQ 22 GND
23 /PDIOW 24 GND
25 /PDIOR 26 GND
27 PIORDY 28 GND
29 /PDDACK 30 GND
31 IRQ14 32 N.C
33 PDA1 34 GPIOA
35 PDA0 36 PDA2
37 /PDCS1 38 /PDCS3
39 /HD_LED1 40 GND

AR-B1642 User’s Guide

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AR-B1642 User’s Guide

3.8 HARD DISK DRIVE 44-PIN HEADER (IDE2)

PIN SIGNAL PIN SIGNAL

1 /RESET 2 GND

3 SDATA 7 4 SDATA 8

5 SDATA 6 6 SDATA 9

7 SDATA 5 8 SDATA 10

9 SDATA 4 10 SDATA 11
11 SDATA 3 12 SDATA 12
13 SDATA 2 14 SDATA 13
15 SDATA 1 16 SDATA 14
17 SDATA 0 18 SDATA 15
19 GND 20 N.C
21 SDDREQ 22 GND
23 /SOIOW 24 GND
25 /SOIOR 26 GND
27 SIORDY 28 GND
29 /SDDACK 30 GND
31 IRQ15 32 N.C
33 SDA1 34 /LID
35 SDA0 36 SDA2
37 /SDCS1 38 /SDCS3
39 /HD_LED2 40 GND
41 +5V 42 +5V
43 GND 44 N.C

3.9 HARD DISK INDICATIVE LED HEADER (LED1)

3.10 AUDIO LINE IN / LINE OUT HEADER (J13)

PIN SIGNAL PIN SIGNAL

1 LINE IN L 4 LINE OUT L
2 GND 5 GND
3 LINE IN R 6 LINE OUT R

3.11 USB HEADER (USB1)

PIN SIGNAL PIN SIGNAL

1 +5V 6 +5V
2 TX0- 7 TX1­3 TX0+ 8 TX1+
4 GND 9 GND
5 GND 10 GND

12

3.12 FLOPPY DISK DRIVE HEADER (J8)

PIN SIGNAL PIN SIGNAL

1 GND 2 DRVDEN0
3 GND 4 NC
5 GND 6 NC
7 GND 8 /INDEX

9 GND 10 /MOA
11 GND 12 /DSB
13 GND 14 /DSA
15 GND 16 /MOB
17 GND 18 /DIR
19 GND 20 /STEP
21 GND 22 /WD
23 GND 24 /WE
25 GND 26 /TRAK0
27 GND 28 /WP
29 GND 30 /RDATA
31 GND 32 /HEAD
33 GND 34 /DSKCHG

3.13 PARALLEL PORT HEADER (J3)

PIN SIGNAL PIN SIGNAL

1 /STB 2 /AFD

3 PD0 4 /ERR

5 PD1 6 /INIT

7 PD2 8 /SLIN

9 PD3 10 GND
11 PD4 12 GND
13 PD5 14 GND
15 PD6 16 GND
17 PD7 18 GND
19 /ACK 20 GND
21 BUSY 22 GND
23 PE 24 GND
25 SLCT 26 NC

3.14 LCD HEADER – LVDS INTERFACE (LVDS1)

+5V @ 2A，+12V @ 2A

The ratings of +5V and +12V here were be
limited by individual fuse.

PIN SIGNAL PIN SIGNAL

1 TX0- 2 GND
3 TX0+ 4 GND
5 TX1- 6 LCD_VDD
7 TX1+ 8 LCD_VDD
9 TX2- 10 NC

11 TX2+ 12 GND
13 TXCLK- 14 GND
15 TXCLK+ 16 +12V
17 NC 18 +12V
19 NC 20 GND
21 +5V 22 NC
23 LCD_VDD 24 NC
25 LCD_VDD 26 NC

AR-B1642 User’s Guide

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AR-B1642 User’s Guide

3.15 LCD DRIVING VOLTAGE HEADER (J1)

1-3、2-4 : +3.3V ( Factory preset )
3-5、4-6 : +5V

3.16 RESET BUTTON HEADER (J4)

3.17 AT POWER HEADER (PW1)

3.18 DDR SDRAM MODULE SOCKET (DIM1)

3.19 CPU SOCKET (U2)

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AR-B1642 User’s Guide

4. WATCHDOG TIMER

This section describes the use of Watchdog Timer. AR-B1642 is equipped with a programmable time-out period
watchdog timer that enable user to reset the system after a time out occur. Users can use simple program to enable
the watchdog timer, and program the timer in range of seconds or minutes, with maximum 255 seconds/minutes.
Once you enable the watchdog timer, the program will start the count down and when counting down to zero the
system will generate a reset signal to reset the system.

4.1 WATCHDOG TIMER SETTING

The watchdog timer is a circuit that maybe be used from your program software to detect crash or hang up.
The Watchdog timer is automatically disabled after reset. Once you enabled the watchdog timer, your program
should trigger the watchdog timer every time before it times out. After you trigger the watchdog timer, the timer will
be set to zero and start to count again. If your program fails to trigger the watchdog timer before times out, it will
generate a reset pulse to reset the system.

Please refer to the following table in order to properly program Watchdog function

Users could test watchdog function under ‘Debug’ program as follows:

C:>debug

-o 2e 87

-o 2e 87

-o 2e 07 To point to Logical Device Number Reg.

-o 2f 08 To Select logical device 8.

-o 2e 30

-o 2f 01

-o 2e 29

-o 2f 20

-o 2e f3 To select register F3 (to select count mode; second or minute)

-o 2f 05

-o 2e f4 To select CRF4 (to set Watchdog Timer Value)

-o 2f 02 To set the Watchdog timer to 2 minutes. (00 to disable, max FF)

-o 2e aa To exit extended function mode.

-q To quit debug mode

To enter debug mode.

To enter extended function mode, interruptible double-write.

To activate the logical device.

To determine the function as Watchdog.

To write 05 to CRF3 (for minute), default is 01 (for second)

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AR-B1642 User’s Guide

5. BIOS CONSOLE

This chapter describes the AR-B1642 BIOS menu displays and explains how to perform common tasks needed to
get up and running, and presents detailed explanations of the elements found in each of the BIOS menu. The
following topics are covered:

 Main
 Advanced
 Peripherals
 PnP/PCI
 PC Health
 Boot
 Exit

BIOS SETUP OVERVIEW

The BIOS is a program used to initialize and set up the I/O system of the computer, which includes the ISA bus and
connected devices such as the video display, diskette drive, and the keyboard. The BIOS provides a menu-based
interface to the console subsystem. The console subsystem contains special software, called firmware that interacts
directly with the hardware components and facilitates interaction between the system hardware and the operating
system.
The BIOS default values ensure that the system will function at its normal capability. In the worst situation the user
may have corrupted the original settings set by the manufacturer.
After the computer is turned on, the BIOS will perform diagnostics on the system and display the size of the memory
that is being tested. Press the [Del] key to enter the BIOS setup program, and then the main menu will show on the
screen.

5.1 MAIN

The BIOS setup main menu includes some options. Use the [Up/Down] arrow key to highlight the option that you
wish to modify, and then press the [Enter] key to select the option and configure the functions.

Main

The <Main> option allows you to record some basic system hardware configuration and set the system clock and
error handling. If the CPU board is already installed in a working system, you will not need to select this option
anymore.

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AR-B1642 User’s Guide

Date & Time Setup

Highlight the <Date> field and then press the [Page Up]/[Page Down] or [+] / [-] keys to set the current date. Follow
the month, day and year format.
Highlight the <Time> field and then press the [Page Up]/[Page Down] or [+] / [-] keys to set the current date. Follow
the hour, minute and second format.
The user can bypass the date and time prompts by creating an AUTOEXEC.BAT file. For information on how to
create this file, please refer to the MS-DOS manual.

Hard Disk Setup

The BIOS supports various types for user settings, The BIOS supports <Pri. Master>, <Pri. Slave>, <Sec. Master>
and <Sec. Slave> so the user can install up to two hard disks. For the master and slave jumpers, please refer to the
hard disk’s installation descriptions.

Floppy Setup

The <Main> option records the types of floppy disk drives installed in the system.
To enter the configuration value for a particular drive, highlight its corresponding field and then select the drive type
using the up-arrow or down-arrow key.

5.2 ADVANCED

The <Advanced > option consists of configuration entries that allow you to improve your system performance, or let
you set up some system features according to your preference. Some entries here are required by the CPU board’s
design to remain in their default settings.

Advanced

Quick Post

This category speeds up Power On Self Test (POST) after you power on the computer. If it is set to Enabled, BIOS
will shorten or skip some check items during POST.
These options determine where the system looks first for an operating system.

USB Keyboard Support

This option can enable or disable USB keyboard function.

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AR-B1642 User’s Guide

PS/2 Mouse Function

This option can enable or disable PS/2 mouse function.

Panel Type

This option can be set resolution of LCD as 640x480 or 800x600 or 1024x768.

ACPI Function

This item allows you to enable or disable the Advanced Configuration and Power Management (ACPI).

ACPI Suspend Type

This item will set which ACPI suspend type will be used.
S1 (POS)
The S1 sleeping state is low wake-up latency sleeping state. In this state, no system context is lost (CPU or chipset)
and hardware maintains all system contexts.
S3 (STR)
The S3 state is a low wake-up latency sleeping state. In this state, all system contexts are lost expect system
memory. CPU, cache, and chipset context are lost in this state. Hardware maintains memory context and restores
some CPU and L2 configuration context.

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AR-B1642 User’s Guide

5.3 PERIPHERALS

This option controls the configuration of the board’s chipset. Control keys for this screen are the same as for the

previous screen.

Peripherals

Onboard Serial Port 1
Onboard Serial Port 2

These options enable the serial port 1 and 2.

Onboard Parallel Port

This option enables the parallel port.

Parallel Port Mode

This option specifies the parallel port mode.
Default setting is Standard Parallel Port (SPP).
Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) are both bi-directional data transfer schemes
that adhere to the IEEE 284 specifications.

OnChip USB Controller

This item allows you to decide to enable or disable the on-board USB Controller.

OnChip USB2.0 Controller

This item allows you to decide to enable or disable to enhance USB controller as USB2.0 mode.

AC97 Audio

This item allows you to decide to enable or disable the AC’97 Audio.

OnChip LAN

This item allows you to decide to enable or disable the on-board LAN.

Onboard FDC Controller

This item allows you to decide to enable or disable the on-board FDC Controller.

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AR-B1642 User’s Guide

5.4 PNP/PCI

PnP/PCI

5.5 PC HEALTH

This section allows User to view some hardware information of the system, include Temperatures, CPU’s fan speed,
and battery voltage.

PC Health

20

5.6 BOOT

Boot sequence setup.

AR-B1642 User’s Guide

Boot

5.7 EXIT

This section is used to exit the BIOS main menu. After making your changes, you can either save them or exit the
BIOS menu and without saving.

Exit

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AR-B1642 User’s Guide

5.8 BIOS UPDATE

The BIOS program instructions are contained within computer chips called FLASH ROMs that are located on your
system board. The chips can be electronically reprogrammed, allowing you to update your BIOS firmware without
removing and installing chips.
The AR-B1642 provides the FLASH BIOS update function for you to easily to update BIOS.
Please follow these operating steps to update BIOS:

Step 1: You must boot up system into MS-DOS mode first. Please don’t detect files CONFIG.SYS and

AUTOEXEC.BAT.

Step 2: In the MS-DOS mode, you should execute the AWDFLASH program to update BIOS.

Step 3: Follow all messages then you will update BIOS smoothly.

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APPENDIX A. IO ADDRESS MAPPING

I/O MAP ASSIGNMENT
0000-000F DMA controller
0010-001F System board resource
0020-0021 Interrupt controller
0022-003F System board resource
0040-0043 System Timer
0044-005F System board resource
0060-0060 Standard 101/102-Key or Microsoft Natural Keyboard
0061-0061 System speaker
0062-0063 System board resource
0064-0064 Standard 101/102-Key or Microsoft Natural Keyboard
0065-006F System board resource
0070-0073 System CMOS / real time clock
0074-007F System board resource
0080-0090 DMA controller
0091-0093 System board resource
0094-009F DMA controller
00A0-00A1 Interrupt controller
00A2-00BF System board resource
00C0-00DF DMA controller
00E0-00EF System board resource
00F0-00FF Math processor
0170-0177 Secondary IDE controller
01F0-01F7 Primary IDE controller
0294-0297 System board resource
02F8-02FF Serial port (COM2)
0376-0376 VIA Bus Master PCI IDE Controller

Secondary IDE controller (dual fifo)
0378-037F Parallel port (LPT1)
03B0-03BB VIA / S3G UniChrome IGP
03C0-03DF VIA / S3G UniChrome IGP
03F2-03F5 Floppy Disk Drive controller
03F6-03F6 VIA Bus Master PCI IDE Controller

Primary IDE controller (dual fifo)
03F7-03F7 Floppy Disk Drive controller
03F8-03FF Serial port (COM1)
04D0-04D1 System board resource

AR-B1642 User’s Guide

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AR-B1642 User’s Guide

APPENDIX B. INTERRUPT REQUEST (IRQ)

SETTING HARDWARE USING THE SETTING

00 System timer
01 Standard 101/102-Key or Microsoft Natural Keyboard
02 Programmable interrupt controller
03 Serial Port (COM2)
04 Serial Port (COM1)

05

06 Standard Floppy Disk Drive Controller
07 Parallel Port (LPT1)
08 System CMOS / real time clock
09 SCI IRQ used by ACPI bus

10

11

12 PS/2 Compatible Mouse
13 Numeric data processor

14

15

ACPI IRQ Holder for PCI IRQ Steering
VIA PCI to USB Enhanced Host Controller

ACPI IRQ Holder for PCI IRQ Steering
Viny1 AC’97 Codec Combo Driver (WDM)
VIA Tech 3038 PCI to USB Universal Host Controller
ACPI IRQ Holder for PCI IRQ Steering
ACPI IRQ Holder for PCI IRQ Steering

VIA RhineⅡFast Ethernet Adapter

VIA Tech 3038 PCI to USB Universal Host Controller
VIA Tech 3038 PCI to USB Universal Host Controller
VIA / S3G UniChrome IGP

VIA Bus Master PCI IDE Controller
Primary IDE controller (dual fifo)
VIA Bus Master PCI IDE Controller
Secondary IDE controller (dual fifo)

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