Acrosser Technology AR-B1797 User manual

AR-B1797
Socket LGA775 Pentium®4
INDUSTRIAL GRADE
CPU BOARD
User’ s Guide
Edition: 1.0
Book Number: AR-B1797-06-07-13

Table of Contents
0. PREFACE.................................................................................................................................................................... 3
0.1 COPYRIGHT NOTICE AND DISCLAIMER.....................................................................................................................................3
0.2 WELCOME TO THE AR-B1797 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 ........................................................................................................................................4
1. INTRODUCTION.......................................................................................................................................................... 5
1.1 PACKING LIST................................................................................................................................................................................5
1.2 SPECIFICATIONS...........................................................................................................................................................................6
1.3 BLOCK DIAGRAM...........................................................................................................................................................................7
2. INSTALLATION........................................................................................................................................................... 8
2.1 AR-B1797'S BOARD DIMENSIONS ...............................................................................................................................................8
2.2 CPU INSTALLATION ....................................................................................................................................................................10
2.3 MEMORY INSTALLATION (DDR2 SODIMM MEMORY SIZE) ....................................................................................................11
3. CONNECTION........................................................................................................................................................... 12
3.1 ATX POWER CONNECTOR （ATX1）.......................................................................................................................................12
3.2 ATX POWER FOR 12V（ATX_12V1）........................................................................................................................................12
3.3 PARALLEL PORT（LPT1）..........................................................................................................................................................12
3.4 SEARIAL ATA（S_ATA1~S_ATA4）...........................................................................................................................................13
3.5 FLOPPY DISK（FDD1）..............................................................................................................................................................13
3.6 IDE INTERFACE（IDE）..............................................................................................................................................................13
3.7 CRT INTERNAL PIN HEADER（VGA）.......................................................................................................................................14
3.8 SYSTEM FAN CONNECTOR（PWR_FAN1）............................................................................................................................14
3.9 CPU FAN CONNECTOR（CPU_FAN1）.....................................................................................................................................14
3.10 USB EXTERNAL CONNECTOR（CPU_FAN1）.......................................................................................................................14
3.11 USB INTERNAL PINHEADER（J2、J13、J16）......................................................................................................................15
3.12 SERIAL PORT（COM1）...........................................................................................................................................................15
3.13 SERIAL PORT（COM2）...........................................................................................................................................................15
3.14 GPIO PORT（JP5）...................................................................................................................................................................15
3.15 FRONT PANEL CONTROL（F_PANEL1）...............................................................................................................................16
3.16 KEYBOARD/MOUSE CONNECTOR （PS2）..........................................................................................................................16
3.17 RS232/RS485/RS422 SWITCH（J15）.....................................................................................................................................16
3.18 RS422/RS485 TRANSMISSION AND RECEIVE PAIR （CN46）............................................................................................16
3.19 COMPACT FLASH CONNECTOR（CN31）.............................................................................................................................17
3.20 CF CARD MASTER/SLAVE SWITCH（JP4）...........................................................................................................................17
3.21 IDE CABLE SELECT（JP8）.....................................................................................................................................................17
3.22 POWER/HARD DISK/BYPASS INDICATOR（LED1）..............................................................................................................18
3.23 LAN LINK/SPEED/ACTIVITY INDICATOR（LED2~LED5）......................................................................................................18
3.24 LAN RJ45 CONNECTOR（LAN1~LNA4）.................................................................................................................................18
3.25 DDR2 SDRAM RAM MODULE SOCKET（J18、J10）.............................................................................................................18
4. WATCHDOG TIMER CONFIGURATION.................................................................................................................. 20
4.1 WATCHDOG TIMER SETTING ....................................................................................................................................................20
5. BIOS CONSOLE........................................................................................................................................................ 22
5.1 MAIN SETUP.................................................................................................................................................................................22
5.2 ADVANCED CHIPSET SETUP.....................................................................................................................................................24
5.3 POWER SETUP............................................................................................................................................................................25
5.4 PERIPHERALS SETUP ................................................................................................................................................................26
5.5 PNP/PCI SETUP.......................................................................................................................................................................2727
5.6 PC HEALTH SETUP ...................................................................................................................................................................288
5.7 BOOT SETUP .............................................................................................................................................................................299
5.8 EXIT SETUP..................................................................................................................................................................................30
5.9 BIOS UPDATE ............................................................................................................................................................................311
2

0. PREFACE
0.1 COPYRIGHT NOTICE AND DISCLAIMER
This document is copyrighted, 2006, 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
(WWW.ACROSSER.COM)as soon as possible.
Possession, use, or copy of the software described in this publication is authorized only pursuant to
valid written license fromAcrosser or an authorized sub licensor.
ACKNOWLEDGEMENTS
Acrosser, AMI, IBM PC/AT, ALI, Windows 3.1, MS-DOS…are registered trademarks.
All other trademarks and registered trademarks are the property of their respective owners.
0.2 WELCOME TO THE AR-B1797 CPU BOARD
This guide introduces theAcrosser AR-B1797 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-B1797. General system information can also be found in this
publication.
0.3 BEFORE YOU USE THIS GUIDE
Please refer to the Chapter 3, “Setting System,” in this guide, if you have not already installed this
AR-B1797. Check the packing list before you install and make sure the accessories are completely
included.
AR-B1797 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 mail to: [e-mail]
[email protected]
3

0.6 STATIC ELECTRICITY PRECAUTIONS
Before removing the board from its anti-static bag, read this section about static electricity precautions.
Static 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.
4

1. INTRODUCTION
Welcome to the AR-B1797 ATX Single Board Computer. The AR-B1797 LGA775 Pentium® 4 board
incorporates the Intel®advanced 915GV Chipset that supports processors from 2.66MHz to 3.8MHz in
LGA775 package with a front size bus of 533/800MHz.
Graphics display functionality is provided by Build-in Intel Graphics Media Accelerator(GMA) that
supports CRT display.4 Ethernets connectivity come from the Marvel Yukon GIGA Ethernet controller.
Two DDR II DIMM sockets supports up to 2GB of memory. Two Serial and Four SATA ports are
supported. There is one IDE connectors – IDE1 supporting UDMA33/66/100 while supporting a CF
Type II socket for its slave channel.
Other I/O features include four USB ports connector with pin headers. Expansion slots composed of
one PCI Golden finger that can expand PCI interface with a PCI back panel. AR-B1797 uses a 24-pin
ATX power and a 4-pin 12V input connector (special for CPU).
1.1 PACKING LIST
In addition to this User's Manual, the AR-B1797 package includes the following items:
 The quick setup manual
 1 AR-B1797 CPU board
 1 Software utility CD
 VGA cable
 PS2 KB/MS cable
 Console cable
 SATA cable
 COM cable
5

1.2 SPECIFICATIONS
Model No. AR-B1797 V1.0
PCB AR-B1797 V1.0
Features 1. DDR2 solution
2. Support Auto-MDIX
3. Support by-passed(LAN1 and LAN2, optional)
4. Support PXE function
5. Support Console Redirection
CPU Grade Supports Pentium IV LGA 775 CPUs
CPU FAN Slim Cooling FAN
System FAN 2x System FAN with controlled hardware monitor
BIOS AWARD
System Chipset Intel 915GV
Intel ICH6 chipset I/O Controller
System Memory Supports 2x 400/533 DDR2 SDRAM, and one DIMM Slot for up to
1.0GB memory), Max. RAM 2GB
VGA Chipset Integrated Intel Extreme Graphics
Video Memory Up to 64MB Shared system Memory
Display Interface CRT – D-SUB 15-pin female connector
IDE 4xSATA
One External Hard Disk Bay
On-board one 2x20x2.54mm pin-header connector
Supports Ultra DMA 33/66/100/133 for 40pins connector
SATA Hot Swappable SATA
LAN chipsets Marvell 88E8053x4 with RJ-45(90 degree) connector build-in LED
C. F. CF+ Type II for low cost flash storage media
I/O Chipset IT8712HX
FDC On-board one 2x17x2.54mm pin-header connector
Serial Port 1x DB-9 RS-232 connectors, 1xPin header for RS232/422/485(LCD
will use COM2)
Parallel Port On-board one D-SUB 25-pin female external port for LPT1 , supports
SPP/EPP/ECP modes (rear I/O panel)
GPIO 8 Independent I/O Lines, TTL level
USB On-board 2x USB connectors(rear I/O panel), 6x Pin header, USB2.0
K/B and Mouse On-board PS/2 Keyboard and PS/2 Mouse 6-pin Mini-DIN external
connectors (option)
Expansion Slot One PCI Golden Finger For expanding PCI interface.
Watchdog Software programmable 1~63 seconds
Hardware monitor yes
FAN control Speed Control by room temperature
Dimension 440x210x44mm
Operating Temp. 0 to 45 Degrees Celsius (CPU needs cooler)
Storage Temp. -20 to 80 Degrees Celsius
Operating Humidity 0 to 90% relative humidity none-condensing
Certification CE, FCC Class A
Supporting OS Linux 6.5 and above, Win95/98/2000/Me/NT/XP
6

1.3 BLOCK DIAGRAM

2. INSTALLATION
This chapter describes how to install the AR-B1797. At first, the layout of AR-B1797 is shown, and the
unpacking information that you should be careful is described. The jumpers and switches setting for the
AR-B1797’s configuration are as below.
2.1 AR-B1797'S BOARD DIMENSIONS
8

9

2.2 CPU INSTALLATION
The AR-B1797 embedded board supports a LGA775 processor socket for Intel®Pentium®4 or Celeron®
D processors.
10

2.3 MEMORY INSTALLATION (DDR2 SODIMM MEMORY SIZE)
The AR-B1797 board supports DDR2 400/533 MHz main memory. Two 240-pin DIMM connectors on the board
supports unbuffered non-ECC, single and double-side DDR2 400/533 MHz DIMM. Each DIMM provide the ability
to use up to maximum of 1 GB system memory.
To install the DDR2 modules, locate the memory slot on the embedded board and perform the following
steps:
1. Hold the DDR2 module so that the key of the DDR2 module align with those on the memory slot.
2. Gently push the DDR2 module in an upright position until the clips of the slot close to hold the DDR2
module in place when the DDR2 module touches the bottom of the slot.
3. To remove the DDR2 module, press the clips with both hands.
Clip
KEY
KEY
Clip
11

3. CONNECTION
The connectors on AR-B1797 allows you to connect external devices such as USB devices, serial port
drives, hard disk devices, printers, etc. The following table lists the connectors on AR-B1797 and their
respective functions.
1.ATX1
2.ATX_12V1
3.LPT1
PIN DEFINE PIN DEFINE
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS-ON
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 PG 20 -5V
9 +5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 GND
PIN DEFINE
1 GND
2 GND
3 12V
4 12V
PIN DEFINE PIN DEFINE
1 STB- 14 AFD-
2 PPD0 15 EEROR-
3 PPD1 16 INIT-
4 PPD2 17 SLIN-
5 PPD3 18 GND
6 PPD4 19 GND
7 PPD5 20 GND
8 PPD6 21 GND
9 PPD7 22 GND
10 ACK- 23 GND
11 BUSY 24 GND
12 PE 25 GND
13 SLCT 26 NC
1 14
13 26
3 1
4 2
24 12
13 1
12

4.SATA
5.FDD1
13
6.IDE（NOTE1）
PIN DEFINE
2 TXP
3 TXN
5 RXN
6 RXP
PIN DEFINE PIN DEFINE
1 GND 2 DENSEL-
3 GND 4 NC
5 GND 6 NC
7 GND 8 INDEX-
9 GND 10 MOTEA-
11 GND 12 DRVB-
13 GND 14 DRVA-
15 GND 16 MOTEB-
17 GND 18 DIR-
19 GND 20 STEP-
21 GND 22 WDATA-
23 GND 24 WGATE-
25 GND 26 TK00-
27 GND 28 WPT-
29 GND 30 RDATA-
31 GND 32 SIDE1-
33 GND 34 DSKCHG-
PIN
DEFINE
PIN
DEFINE PIN DEFINE PIN DEFINE
1 RESET# 2 GND 23 IOW# 24 GND
3 DATA7 4 DATA8 25 IOR# 26 GND
5 DATA6 6 DATA9 27 NC 28 BALE
7 DATA5 8 DATA10 29 NC 30 GND
9 DATA4 10 DATA11 31 IRQ 32 IOCS16#
11 DATA3 12 DATA12 33 SA1 34 NC
13 DATA2 14 DATA13 35 SA0 36 SA2
15 DATA1 16 DATA14 37 HDC_CS0# 38 HDC_CS1#
17 DATA0 18 DATA15 39 HDC_ACTIVE# 40 GND
19 GND 20 NC
21 NC 22 GND
1 2
2
1
33 34
6
5
3
2
39 40

7.VGA
9 10
1 2
PIN DEFINE PIN DEFINE
1 RED 2 GND
3 GREEN 4 GND
5 BLUE 6 GND
7 V-SYNC 8 SSCL
9 H-SYNC 10 SSDA
8.PWR_FAN1
3
2
1
PIN DEFINE
1 GND
2 12V
3 CTRL
9.CPU_FAN1
PIN DEFINE
1 GND
2 12V
3 SENSE
4 CTRL
4
3
2
1
10. F_USB1
PIN DEFINE PIN DEFINE
1 5V 5 5V
2 -USB0 6 -USB1
3 +USB0 7 +USB1
4 GND 8 GND
14

11. J2，J3，J16（USB）
12. COM1
13. COM2
14. JP5（GPIO）
PIN DEFINE PIN DEFINE
1 5V 2 GND
3 -USB0 4 +USB1
5 +USB0 6 -USB1
7 GND 8 5V
PIN DEFINE PIN DEFINE
1 -DCD 6 -DSR
2 SIN 7 -RTS
3 SOUT 8 -CTS
4 -DTR 9 -RI
5 GND
PIN DEFINE PIN DEFINE
1 -DCD 2 -DSR
3 SIN 4
-RTS
5 SOUT 6 -CTS
7 -DTR 8 -RI
9 GND 10 GND
PIN DEFINE PIN DEFINE
1 GND 2 5V
3 GPIO1 4
GPIO2
5 GPIO3 6
GPIO4
7 GPIO5 8 GPIO6
9 GPIO7 10 GPIO8
9 10
1 2
10
9
1 2
9
8
7
6
2
7 8
1
5
4
3
2
1
15

15. F_PANEL1
11 12
1 2
PIN DEFINE
1-2 SPEAKER
5-7 PWRBTN
4-6 SLEEP
10-12 RESET
16. PS2
PIN DEFINE
1 MSDATA
2 KBDATA
3 GND
4 3V
5 MSCLK
6 KBCLK
17. J15
18. CN46（RS485＆RS422）
PIN DEFINE
1-2 RS232
2-3 RS422
OR
RS485
PIN DEFINE
1 RS485 TRX+ OR RS422 TX+
2 RS485 TRX- OR RS422 TX-
3 RS422 RX+
4 RS422 RX-
16

19. CN31（CF SLOT，NOTE1）
50
25
26
1
PIN DEFINE PIN DEFINE PIN DEFINE PIN DEFINE
1 GND 2 PDD3 27 PDD11 28 PDD12
3 PDD4 4 PDD5 29 PDD13 30 PDD14
5 PDD6 6 PDD7 31 PDD15 32 -PCS3
7 -PCS1 8 NC 33 NC 34 -DIOR
9 GND 10 NC 35 -DIOW 36 5V
11 NC 12 NC 37 IDEIRQ 38 5V
13 5V 14 NC 39 MAS/SLA 40 SA2
15 NC 16 NC 41 RESET 42 IORDY
17 NC 18 PDA2 43 NC 44 5V
19 PDA1 20 PDA0 45 -IDEACTP 46 P66DET
21 PDD0 22 PDD1 47 PDD8 48 PDD9
23 PDD2 24 NC 49 PDD10 50 GND
25 CFD2 26 CFD1
20. JP4（CF Card Master/Slave Switch）
Master：Put Jumper
Slave ：Open
21. JP8（IDE Cable Select，NOTE 1 ）
Open ATA33
Close ATA66 above
17

22. LED1（Power、HD、Bypass）
LIGHT DEFINE
1 HD
2 POWER
3 BYPASS
23. LED2~LED5（LAN）
PIN DEFINE
1 3V
2 ACT
3 3V
4 100
5 3V
6 1000
5 6
2
1
24. LAN1、LAN2、LAN3、LAN4
LIGHT DEFINE
LED2 ACT
LED1 GREEN：100
ORANGE：1000
LED2 LED1
18
25. J18、J10（DDR2 SLOT）
PIN DEFINE PIN DEFINE
1 MDI0+ 5 MDI2+
2 MDI0- 6 MDI2-
3 MDI1+ 7 MDI3+
4 MDI1- 8 MDI3-
8 1

NOTE 1：
For using both of Hard Disk And Compact Flash, you have to use the ATA33 IDE
cable.
IF you want to use ATA66/100 mode with Hard Disk, you must put jumper on
JP6 and use the special IDE cable.
The cable is like below：
IDE HOST IDE DEVICE
In usual ATA66/100 cable, the Pin 34 between host and
device side are disconnected.
The special cable must connect this PDIAG signal from host
side to device side.
PIN34
PDIAG
In usual ATA66/100 cable, the Pin 34 at
host side is defined as CABLE ID and
connected to ground.
In special cable, the Pin 34 is defined
as PDIAG.
19

4. WATCHDOG TIMER CONFIGURATION
4.1 WATCHDOG TIMER SETTING
The WDT (Watch Dog Timer) is used to generate a variety of output signals after a user programmable
count. The WDT is suitable for use in the prevention of system lock-up, such as when software becomes
trapped in a deadlock. Under these sorts of circumstances, the timer will count to zero and the selected
outputs will be driven. Under normal circumstance, the user will restart the WDT at regular intervals
before the timer counts to zero.
The watchdog timer is a circuit that maybe 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 or trigger the IRQ 9 signal in
order to tell your system that the watchdog time is out.
User could test watchdog function under ‘Debug’ program as follows:
C:>debug
o 2e 87 ; Extended Functions Enable Register
o 2e 01 ; Extended Functions Enable Register
o 2e 55 ; Extended Functions Enable Register
o 2e 55 ; Extended Functions Enable Register
o 2e 07 ; Extended Functions Index Register
point to Logical Device Number Reg.
o 2f 07 ; Select logical device 8, (Watchdog Function)
o 2e 23 ; Device Active register
o 2f 10 ; Set this value to enable Watchdog.
o 2e 72 ; Timer Unit setting
o 2f C0 ---> (second), 40 --> (minute)
o 2e 73 ; Timeout setting.
o 2f 00->FF --->(watch-dog time set)
q
Sample code as below:
IO_Port_Address = 0x4E;
outportb(IO_Port_Address,0x87); // (EFER) Extended Functions Enable Register
outportb(IO_Port_Address,0x87);
outportb(IO_Port_Address,0x2D); // Point to Global Reg.
// Select Multi-Function pin, (Bit0=0 Watchdog Function)
outportb(IO_Port_Address+1,(inportb(IO_Port_Address+1)&0xFE));
outportb(IO_Port_Address,0x07); // Point to Logical Device Number Reg.
outportb(IO_Port_Address+1,0x08); // Select logical device 8, (Watchdog Function)
20