Acrosser Technology AR-B1682 User manual

AR-B1682---SOCKET 370 PENTIUM III GRADE
CPU CARD WITH VGA/LCD/LAN/SCSI
Operation Manual
Version 1.3

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COPYRIGHT NOTICE
This operation manual is expected to assist both Embedded Computer manufacturers and users in installing
and setting up the system. The information contained in this document is subject to change without any
notice.
Copyright Acrosser Technology Co., Ltd, 2000. All rights are reserved. No part of this publication can be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer
language, in any form or any means, electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the prior written consent of Acrosser Technology.
ACKNOWLEDGEMENTS
All other trademarks and registered trademarks mentioned herein are the property of their respective owners.

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1. INTRODUCTION..............................................................................................................................1
1-1. ABOUT THIS MANUAL...............................................................................................................2
1-2. SYSTEM SPECIFICATION...........................................................................................................3
1-3. SAFETY PRECAUTIONS..............................................................................................................4
2. HARDWARE CONFIGURATION......................................................................................................5
2-1. JUMPER & CONNECTOR QUICK REFERENCE TABLE...............................................................6
2-2. COMPONENT LOCATIONS.........................................................................................................7
2-3. HOW TO SET JUMPERS ..............................................................................................................7
2-4. SYSTEM CLOCK SELECT AND CPU SETTING...........................................................................8
2-5. RS232/485 SELECTION................................................................................................................8
2-6. DOC MEMORY............................................................................................................................8
2-7. COM1 CONNECTOR(CN24)........................................................................................................10
2-8. COM2 CONNECTOR(CN12)........................................................................................................10
2-9. PS2 KB(CN25)............................................................................................................................10
2-10. EXTERNAL KEYBOARD & MOUSE CONNECTOR(CN23).......................................................11
2-11. RESET SWITCH(CN18)............................................................................................................11
2-12. HDD LED Header(CN16)...........................................................................................................11
2-13. POWER LED & KEYLOCK CONNECTOR(CN13)......................................................................11
2-14. IR CONNECTOR(CN5)..............................................................................................................11
2-15. FLOPPY DISK DRIVE CONNECTOR(CN6)...............................................................................12
2-16. HARD DISK DRIVE CONNECTOR............................................................................................12
2-17. LCD CONNECTOR 24BIT(CN9)................................................................................................14
2-18. LCD CONNECTOR 36BIT(CN9+CN11)......................................................................................14
2-19. EXTERNAL SPEAKER HEADER(CN20)...................................................................................16
2-20. Ethernet RJ-45 Connector(CN21).................................................................................................16
2-21. VGA CRT CONNECTOR(CN19)................................................................................................16
2-22. WATCHDOG CONNECTOR(CN17)...........................................................................................16
2-23. PRINTER CONNECTOR(CN2)...................................................................................................17
2-24. SYSTEM FAN POWER CONNECTOR(CN27)............................................................................17
2-25. POWER ON CONNECTOR FOR ATX POWER SUPPLY(CN15)..................................................17
2-26. POWER CONTROL CONNECTOR(CN4)....................................................................................17
2-27. SCSI CONNECTOR(CN3)..........................................................................................................18
2-28. UNIVERSAL SERIAL BUS CONNECTOR (CN14).....................................................................18
2-29. CPU FAN POWER CONNECTOR(CN26)....................................................................................18
2-30. CLEAR CMOS FUNCTION(J4)..................................................................................................19
2-31. DOC SOCKET(U21)..................................................................................................................19
2-32. Touch Screen CONNECTOR(CN10)............................................................................................19
2-33. MEMORY INSTALLING..........................................................................................................20
3. SOFTWARE UTILITIES.................................................................................................................21
3-1. Utility Disk File...........................................................................................................................22
3-2. SETUP.......................................................................................................................................22
3-3. WATCHDOG TIMER CONFIGURATION....................................................................................23
4. AMI BIOS SETUP..........................................................................................................................27
4-1. BIOS SETUP OVERVIEW...........................................................................................................29
4-2. STANDARD CMOS SETUP........................................................................................................30
4-3. ADVANCED CMOS SETUP........................................................................................................31
4-4. ADVANCED CHIPSET SETUP...................................................................................................34

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4-5. POWER MANAGEMENT ...........................................................................................................36
4-6. PCI/PLUG AND PLAY................................................................................................................38
4-7. PERIPHERAL SETUP.................................................................................................................40
4-8. AUTO-DETECT HARD DISKS....................................................................................................41
4-9. PASSWORD SETTING...............................................................................................................41
4-10. Setting the Password...................................................................................................................41
4-11. Password Checking.....................................................................................................................41
4-12. LOAD DEFAULT SETTING......................................................................................................41
4-13. BIOS EXIT...............................................................................................................................42
4-14. BIOS UPDATE..........................................................................................................................42
APPENDIX A.....................................................................................................................................44
A-1. ISA BUS PIN ASSIGNMENT......................................................................................................45
A-2. PICMG BUS PIN ASSIGNMENT................................................................................................46
APPENDIX B.....................................................................................................................................48
B-1. INTERRUPT MAP......................................................................................................................49
B-2. RTC & CMOS RAM MAP...........................................................................................................50
B-3. TIMER & DMA CHANNELS MAP.............................................................................................51
B-4. I/O & MEMORY MAP................................................................................................................52
APPENDIX C.....................................................................................................................................54
TROUBLE SHOOTING......................................................................................................................54

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1. INTRODUCTION
This chapter describes:
nAbout This Manual
nSystem Specifications
nSafety precautions
nExperienced users can skip to chapter 2 on page 5 for Quick Start.

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1-1. ABOUT THIS MANUAL
Thank you for purchasing our AR-B1682---Socket 370 Pentium III Grade CPU Card with VGA / LCD / LAN /
SCSI, fully PC / AT compatible. This manual contains five chapters. By following the instructions herein, you
can easily use AR-B1682 CPU board.
Chapter 1 Introduction
This chapter notifies you how to avoid the damages against this CPU Card as well as describes the
background of this manual and the specification of AR-B1682..
Chapter 2 Hardware Configuration
This chapter outlines the components' locations and their functions. From this part, you can find how to set
jumper and configure this card, as you need.
Chapter 3 Software Utilities
Helpful information about the proper installations of the VGA , LAN and the Watchdog-timer function are
provided in this chapter.
Chapter 4 AMI BIOS Setup
This chapter indicates you how to set up the BIOS configurations.
Appendix A Expansion Bus
This section introduces you the expansion bus for ISA BUS and PICMG .
Appendix B Technical Summary
This section gives you the information about the Technical maps.
Appendix C Trouble Shooting
This section outlines the errors might occur and some solutions are suggested.

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1-2. SYSTEM SPECIFICATION
CPU:
Supports 333~650MHz Socket 370 Celeron / Coppermine Pentium III grade CPU
CHIPSET:
INTEL 440BX
RAM MEMORY :
Supports 3 168-pin DIMM(PC-100 SDRAM)sockets, 768Mb max.
CACHE SIZE:
Internal 128KB L2 cache inside the CPU.
ETHERNET:
Use RT8139Cchipset, support 10/100M Base T with RJ-45 connector built-in LED.
SCSI:
Use SYMBIOS53C895 or equivalent, supports Ultra-Wide SCSI II with 80MB transfer rate. With one 2.54mm
68-pin SCSI connector.
SUPER I/O:
2 PCI IDE---with one 2.54 mm 40-pin connectors, and one 2.0mm 44pin connector.
1 FDC---with 2.54mm 34 -pin connector.
1 Parallel--- with 2.54 mm 26-pin connector. Supports SPP/EPP/ECP mode.
1 RS-232C-COM port 1 with DB9 connector located at bracket.
1 RS-232C/RS-485/IrDA/Touch Screen –COM port 2.
RS-232C/RS485 is selected by jumper and use the same connector.
IrDA use 2.54mm 5-pin header.
Touch Screen uses 2.0mm 3-pin JST connector.
BIOS:
AMI flash BIOS (256KB, including VGA/LCD/LAN BIOS) Supports utility program for easy to update new
version of BIOS.
KEYBOARD/MOUSE:
PS/2 compatible with 2.0mm 6-pin JST connector and 6-pin mini-DIN connector located at bracket.
BUS INTERFACE:
PICMG -ISA
VGA/LCD DISPLAY:
C&T 69000 with 2MB VRAM internally. (Dual display BIOS supported)
CRT-with HDB 15-pin connector located at bracket.
LCD-with 2.0mm 44-pin connector. (Mono/DSTN/TFT)
TV-Out-with RCA terminal.
WATCHDOG :
Built-In Supper I/O W83977 Chipset.
SYSTEM POWER REQUIREMENT:
+5V-5.0A max. & +12V-1.0A max. (Based on 500 MHz CPU).

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USB:
Built-in 2 ports USB interface with 2.54mm 10-pin headers.
RTC:
Chipset including, Supports ACPI Function with 10 years data retention.
SPEAKER:
Supports on-board buzzer and external speaker. (with 2.5mm 4-pin header).
FLASH DISK:
Supports 1 DiskOnChip Socket 144MB.
H/W MONITORING:
Built-in (Wilnbond WB83783) hardware monitoring chipset.
HEADERS:
2-pin Reset, hard disk LED, and power/watchdog LED.
3-pin CPU cooling fan and Chassis cooling fan.
SWITCHES:
Use SMD DIP switch to select base clock and CPU clock multiplier.
BUS DRIVER CAP:
High driver for 32 TTL level loads (max.)
CPU SP:
Separated Vcore and Vio.
CE DESIGN-IN:
Add EMI components to COM ports, Parallel port, CRT, USB, Keyboard, and PS/2 mouse.
PC BOARD:
6 layers, EMI considered, especially in switching power layout.
BOARD DIMENSION:
Compact size 338.6mm x 121.9mm(13.33"x 4.80")
1-3. SAFETY PRECAUTIONS
Follow the messages hereinafter to protect your systems from damage on all occasions.
Touch a grounded metal object to discharge the static electricity in your body (or ideally, wear a grounded
wrist strap)
Stay safe from the electric shock. Don‘t touch any components of this card when the card is on. Always
switch off power when the system is not in use.
Disconnect power when changing any hardware devices. For instance, when you connect a jumper or install
any cards, a surge of power may damage the electronic components or the whole system.

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2. HARDWARE CONFIGURATION
Four parts are included:
nJumper & Connector Quick Reference Table
nComponents’ Locations
nConfiguration and Jumper settings
nConnector Pin Assignments

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2-1. JUMPER & CONNECTOR QUICK REFERENCE TABLE
SWITCH & JUMPER:
DOC 2000 SEG ...................................................................... SW1
CPU f Ratio Selecting.............................................................. SW2
System Clock Select............................................................... SW3
RS232/485 Selection ............................................................. J1, J2, J3
DOC Memory Mapping ............................................................ JP6, JP7
Clear CMOS Function.............................................................. JP4
CONNECTOR:
COM1 Connector ................................................................... CN24
COM2 Connector ................................................................... CN12
PS/2 Connector ..................................................................... CN25
External PS/2 Connector ........................................................ CN23
Reset Switch ......................................................................... CN18
Floppy Disk Drive Connector ................................................... CN6
Hard Disk Drive Connector ...................................................... CN1, CN7
Hard Disk Drive LED Connector ............................................... CN16
Power LED & KeyLock Connector ........................................... CN13
LCD Panel Connector ............................................................. CN9, CN11
Ethernet RJ-45 Connector ....................................................... CN21
External Speaker Connector ................................................... CN20
Printer Connector ................................................................... CN2
System Fan Power Connector ................................................ CN27
SCSI Connector ..................................................................... CN3
CPU Fan Power Connector ..................................................... CN26
VGA Connector ..................................................................... CN19
IR Connector ......................................................................... CN5
Touch Screen Connector ........................................................ CN10
Power on connector for ATX Supply ......................................... CN15
Power Control Connector ........................................................ CN4
Power LED&Key Lock ............................................................ CN13
External Keyboard & Mouse Connector ................................... CN23
Watchdog LED Connector ...................................................... CN17
Universal Serial Bus Connector ............................................... CN4
Memory Installing .................................................................. DIMM1, DIMM2, DIMM3
Disk-On-Chip Socket ............................................................. U21

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2-2. COMPONENT LOCATIONS
AR-B1682 Connector, Jumper and Component Locations
2-3. HOW TO SET JUMPERS
A jumper consists of two or three metal pins with a plastic base mounted on the card, and a small plastic cap
(with a metal contact inside) to connect the pins, so you can set up your hardware configuration by "open"or
close the pins. The jumper can be combined into sets which called jumper blocks. When the jumpers are all
in the block, you have to put them together to set up the hardware configuration. The figure below shows how
it looks.
2 PIN 3 PIN CAP
JUMPERS AND CAP
If a jumper has three pins, for example, labelled PIN1, PIN2, and PIN3, you can either connect PIN1 & PIN2 to
create one setting and shorting or connect PIN2 & PIN3 to create another setting. The jumper setting rules are
applied throughout this manual.
BANK2
BANK1
BANK0
Ultra 2 Wide SCSI
CN 1 CN 2
CN 7
CN 5
CN9
CN15
CN13
CN17
CN20
CN4
CN14
CN 8
CO
M2
CN23
KB
CO
M1
J3
CN21
VGA
U21
CN16
CN18
2.
CN11
CN26
CN27
SW2
SW3
J4

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2-4. SYSTEM CLOCK SELECT AND CPU SETTING
System clock and CPU frequency ratio are automatically detected by BIOS. Please keep sw2 ,
sw3-1 , sw3-2 ,and sw3-3 off.
2-5. RS232/485 SELECTION
The jumper settings are as follows:
(1)COM 1 & COM2 (RS232)
1
2
3
J1
Terminator
1 2 3
J2
7 8 9
1 3 5
J3
2 4 6
(2)COM 2(RS485)
1
2
3
J1
485+
485-
Terminator
1 2 3
J2
7 8 9
1 3 5
J3
2 4 6
2-6. DOC MEMORY
(1) DOC Memory Mapping Selection (JP6, JP7)
A 32-pin DOC socket supports a DOC (Disk-on-Chip) up to 72Mb. This PnP Flash ROM DOC can
be installed as one of the user’s hard disk drive. And if set as Drive C, it can be used to boot up
the computer with MS-DOS installed. It offers much faster access than a floppy or hard disk and
greatly increases reliability under harsh environment.
The DOC Memory Mapping is as follows:
DOC Memory Map
JUMPER SETTING
(pin closed)
JP6 JP7
JUMPER
ILLUSTRATION
Manufactory default --- CC000h-CDFFFh
(2) DOC 2000 SEG (SW1)
On
2 4 6 8
1 3 5 7
SEG 3-45-67-8
CC00H ON ON OFF
D000H ON OFF ON
D400H ON OFF OFF
D800H OFF ON ON

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DC00H OFF ON OFF
E000H OFF OFF ON
DISABLE OFF OFF OFF

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2-7. COM1CONNECTOR(CN24)
COM1 : COM1 Connector, DB9 male connector
The COM1 Connector assignments are as follows:
PIN ASSIGNMENT
1DCD
2RX
3TX
4DTR
5GND
6DSR
7RTS
8CTS
9RI
2-8. COM2 CONNECTOR(CN12)
COM2 : COM2 Connector
The COM2 Connector assignments are as follows :
ASSIGNMENT
PIN RS-232 RS-422 RS-485
1DCD TX-DATA-
2RX TX+ DATA+
3TX RX+ NC
4DTR RX-NC
5GND GND GND
6DSR RTS-NC
7RTS RTS+ NC
8CTS CTS+ NC
9RI CTS-NC
10 NC NC NC
2-9. PS2 KB(CN25)
DIN : PS2 Connector
The PS2 connector can support Keyboard & Mouse.
The pin assignments for PS2 Connector are as follows :
PIN ASSIGNMENT
1KBDATA
2MSDATA
3GND
4Vcc
5KBCLK
6MSCLK

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2-10. EXTERNAL KEYBOARD & MOUSE CONNECTOR(CN23)
EXPS2 : External PS2 Connector
The pin assignments are as follows:
PIN ASSIGNMENT
1KBDATA
2MSDATA
3GND
4Vcc
5KBCLK
6MSCLK
2-11. RESET SWITCH(CN18)
2 –RS
1 -GND
2-12. HDD LED Header(CN16)
1
2
Vcc
HD LED
2-13. POWER LED & KEYLOCK CONNECTOR(CN13)
13 25 4
PW LED X GND K LOCK
GND
2-14. IR CONNECTOR(CN5)
1
3
2
5
4
1. +5V
2. NC
3. Rx
4. GND
5. Tx

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2-15. FLOPPY DISK DRIVE CONNECTOR(CN6)
FDD : Floppy Disk Drive Connector
You can use a 34-pin daisy-chain cable to connect a two-FDD. One end of this cable is to attach the
FDD on the board, the other end is to attach the two-FDD.
The pin assignments are as follows:
1
2
33
34
PIN ASSIGNMENT PIN ASSIGNMENT
1GND 2DRVDEN0
3GND 4NC
5GND 6DRVDEN1
7GND 8INDEX
9GND 10 MTR0
11 GND 12 DRV1
13 GND 14 DRV0
15 GND 16 MTR1
17 GND 18 DIR
19 GND 20 STEP
21 GND 22 WDATA
23 GND 24 WGATE
25 GND 26 TRK0
27 GND 28 WRPRT
29 GND 30 RDATA
31 GND 32 SEL
33 GND 34 DSKCHG
2-16. HARD DISK DRIVE CONNECTOR
IDE1: Hard Disk Drive Connector(CN1)
The AR-B1682 possess two HDD connectors, IDE1 and IDE2. The pin assignments are as follows:
1
239
40

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PIN SIGNAL PIN SIGNAL
1-RESET 2GROUND
3DATA 7 4DATA 8
5DATA 6 6DATA 9
7DATA 5 8DATA 10
9DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 NOT USED
21 IDEDRQA 22 GROUND
23 -LOW A 24 GROUND
25 -LOR A 26 GROUND
27 -CHRDY A 28 GROUND
29 DACKA 30 GROUND
31 -IRQ 14 32 NOT USED
33 SA 1 34 NOT USED
35 SA 0 36 SA2
37 CS 0 38 SA1
39 HD LED A 40 NOT USED
IDE2 : Hard Disk Drive Connector(CN7)
The pin assignments are as follows:
1
243
44
PIN SIGNAL PIN SIGNAL
1-RESET 2GROUND
3DATA 7 4DATA 8
5DATA 6 6DATA 9
7DATA 5 8DATA 10
9DATA 4 10 DATA 11
11 DATA 3 12 DATA 12
13 DATA 2 14 DATA 13
15 DATA 1 16 DATA 14
17 DATA 0 18 DATA 15
19 GROUND 20 NOT USED
21 IDEDRQA 22 GROUND
23 -LOW A 24 GROUND
25 -LOR A 26 GROUND
27 -CHRDY A 28 GROUND
29 DACKA 30 GROUND
31 -IRQ 14 32 NOT USED
33 SA 1 34 NOT USED
35 SA 0 36 SA2
37 CS 0 38 SA1
39 HD LED A 40 NOT USED
41 VCC 42 VCC
43 GROUND 44 GROUND

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2-17. LCD CONNECTOR 24BIT(CN9)
1
2
CN9
PIN ASSIGNMENT PIN ASSIGNMENT
1GND 2SHFCLK
3GND 4LP
5FLM 6GND
7P0 8P1
9P2 10 P3
11 P4 12 P5
13 GND 14 P6
15 P7 16 P8
17 P9 18 P10
19 P11 20 GND
21 P12 22 P13
23 P14 24 P15
25 P16 26 P17
27 GND 28 P18
29 P19 30 P20
31 P21 32 P22
33 P23 34 GND
35 VCC 36 VCC
37 +12V 38 +12V
39 GND 40 GND
41 DE 42 ENABLK
43 GND 44 VEE
2-18. LCD CONNECTOR 36BIT(CN9+CN11)
1
2
CN9
1
2
25
26
CN11
PIN ASSIGNMENT PIN ASSIGNMENT
1P24 2P25
3P26 4P27
5P28 6P29
7P30 8P31
9P32 10 P33
11 P34 12 P35
13 GND 14 GND
15 ENAVEE 16 ENAVEE
17 VCC3 18 VCC3
19 VLCD 20 VCLD
21 VCC 22 VCC
23 DDE 24 LP
25 DDE 26 M