Acrosser Technology AR-B5891 User manual

AR-B5891
Intel® Core™ 2 Duo Mobile Processor
GM45 Micro ATX Motherboard
User’s Manual
Rev. 1.2
2009/09/16

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Copyright
All rights reserved. The information contained in this guide has been validated and
reviewed f or accuracy. No patent liability is assumed with respect to the use of the
information contained herein. While every prec aution has been taken in the preparation of
this guide, the Manufacturer assumes no responsibility for errors or omissions.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of Manufacturer.
Trademark
All products and company na mes are trademarks or registered trademarks of their
respective holders.
These specifications are subject to change without notice.
Technical Support
We hope you to get the maximum performance fr om your products and be willing to help if
running into technical difficulties. For the mo st frequently asked questions, it’s easily foun d
answers from the product documentation and usua lly a lot more detailed, so please t ake
reference to this manual first. If the answer st ill can not be found, gather all the information
or questions applying to the problem, and with the product on hand, contact your distributor,
sales representative, or customer service center for technical support. Most problems
reported are minor and able to be easily solv ed over the phone. In addition, free technic al
support is available and always ready to give advices on application requirements or
specific information on the installation and operation of any of our products.
Please have the following information ready before you call:
1. Product name and serial number
2. Description of your peripheral attachments
3. Description of your software (operating system, version, application software, etc.)
4. A complete description of the problem
5. The exact wording of any error messages

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How to Use This Manual
This manual is written for the system integr ator, PC technician and knowledgeable PC end
user. It describes how to configure your AR-B5891 to meet various operating requirements.
The user ’s manual is divided int o three c hapters, with each chapter addressing a b asic
concept and operation of the motherboard.
Chapter 1: Introduction - gives you an overview of the product specifications and basic
system architecture for the AR-B5891 motherboard.
Chapter 2: Hardw are Configuration Setting - shows the definitio ns and locations of
Jumpers and Connectors so that you can easily configure your system.
Chapter 3: System Installation - describes how to properly mount the CPU, main memory
for a safe installation.

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Table of Content
1. Introduction.................................................................................................................7
1.1 Description...........................................................................................................7
1.2 Specifications ......................................................................................................8
1.3 System Architecture..........................................................................................10
1.4 Dimensions ........................................................................................................11
2. Hardware Configuration Setting..............................................................................13
2.1 Board Layout .....................................................................................................14
2.2 Jumpers & Connectors .....................................................................................15
2.2.1 Clear CMOS: JP1...........................................................................................16
2.2.2 TPM setting: JP2............................................................................................16
2.2.3 RS232/422/485 Setting: JP3 (COM1) ............................................................16
2.2.4 RS232 PIN9 Setting: JP4,JP5 (COM2&3)......................................................16
2.2.5 Front Audio Header: AUDIO1 .........................................................................16
2.2.6 CD_IN Header: CN4 ......................................................................................16
2.2.7 Parallel Header: CN11....................................................................................16
2.2.8 USB Header: CN13,CN14..............................................................................16
2.2.9 Floppy header: CN16 .....................................................................................16
2.2.10 RS232 Header: CN20 ……...……..……….……………………………………. 17
2.2.11 Main Power connector:CN27 ……...……………………………………………. 17
2.2.12 Fan Connector : CN28 ~ 30 ….…...……..……..………………………………..17
2.2.13 Front Panel Header: CN31 ..…...………………………….……………………..17
2.2.14 Digital Header: CN32 ..…...…..…………………………………………………..17
2.2.15 IDE Connector: IDE1 ..………..…..………………………………..…………….17
3. System Installation...................................................................................................19
3.1 Processor Installation .......................................................................................19
3.1.1 Installing Intel® Core™ 2 Duo Mobile CPU ...................................................19
3.1.2 Removing CPU.............................................................................................20
3.2 Main Memory......................................................................................................21
3.3 Installing the Motherboard................................................................................21
Appendix A: Watchdog Timer Programming ................................................................23
Appendix B: GPIO Programming……………………………………………………………..25
Appendix C: Resource MAP ...........................................................................................27

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Revision History
Revision Date Comment
Rev.1.2 Sep. 2009 Initial released

’s Manual
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CHAPTER 1

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1. Introduction
1.1 Description
Taking adv antages of Intel ® energy-ef ficient dual-core processing, AR-B5891 Micro-ATX
motherboard adopts Intel® CoreTM 2 Duo Mobile processors up to 1066 MHz FSB and Intel
®
GM45 Ex press chip set with Intel ® ICH9ME to fit the high performance computer system
applications for meeti ng today’ s demanding p ace and keep complete comp atibility wit h
hardware and software designed. The onboard devices support one PCI Express x16 for an
alternative graphics add-on card, one PCI Express x4, two PCI slot s, integrated graphics,
and built Intel ® 82567 Gigabit Ethernet PHY for iAMT 4.0 function & Intel ® 82574L Gigabit
Ethernet controller offering stable high-speed networking.
AR-B5891 comes with the Intel® GMA 4500MHD graphics supporting DVMT 5.0. The board
also features two DIMMs up to 2 GB SDRAM ( Max 1 GB per DIMM ) with dual channel
DDR3 1066/800, four Serial A TA high-speed dat a transferring at up to 3 GB/s, optional
Intel® Trusted Platform Module 1.2, and audio th rough Realtek ALC883 audio codec. The
onboard Winbond W83627UHG I/O Controller supports four serial ports. Hardware Monitor
function, eight hi-speed USB 2. 0 ports, two 6-pin Mini-Din connectors for PS/2 mouse a nd
keyboard, and one 24-pin st andard connec tor des igned to support A TX power function.
Besides, a feature of CPU overheat protection will provide user more security and stability.
Built with these impressed functions, AR-B5891 Micro-ATX Motherboard is an ideal solution
for Automation, multi-media, gaming, DVR, KIOSK, medical equipment, industrial
automation, financial automatio n, process control, semico nductor equipment, and network
security markets.

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1.2 S pecifications
AR-B5891
Title Advanced Intel® Core™ 2 Duo Mobile Processor based on Micro ATX motherboard
with Dual Displays, Dual Gigabit Ethernet, 4 SATA, 4 COM, Audio, 8 USB
Intel® Core™ 2 Duo Mobile Series Processors
Intel® GM45 Express Chipset, 1066/800/667 MHz FSB
Dual-channel DDR3 800/1066 Memory Architecture
Integrated Intel® Gen 5.0 GMA 4500MHD Graphics
Dual Displays by VGA&DVI
Dual Gigabit Ethernet, iAMT 4.0 supported
iTPM 1.2 supported
Four SATA 300 Ports, One IDE Interface
Four COM Ports, Eight USB 2.0 Ports
Core Specification
1 x PCI Express x16 and PCI Express x4, 2 x PCI Slots for Expansion
Specifications
System
CPU Intel® Core™ 2 Duo Mobile Processors (Socket-P)
FSB 1066/800/667 MHz
BIOS AMI BIOS with 32Mb SPI Flash ROM
System Chipset Intel® GM45 + ICH9ME
I/O Control Winbond W83627UHG I/O Controller
2 x 240-pin DIMM sockets
Dual channel DDR3 800/1066 SDRAM
System Memory
Max. up to 2GB memory
Storage 4 x Series ATA 300 ports supports RAID 0,1,5,10; 1 x IDE 40-pin connector with 5V for DOM
Security Intel® integrated Trusted Platform Module 1.2
Watchdog Timer Reset; 1 sec.~255 min. (1 sec. or 1 min./step)
H/W Status Monitor Monitoring CPU and system temperature, voltage and cooling fan status
External I/O
VGA & DVI-D 1 x D-SUB 15-pin & 1 x D-SUB 24-pin
USB 4 x USB 2.0 Ports
Gigabit-LAN 2 x RJ-45 LAN Ports (with two LEDs indicators)
Audio 3-hole audio jacks for Line In, Line Out, Microphone
COM 2 x RS-232 D-SUB 9-Pin Ports with 5/12V
KB & MUS 2 x Mini DIN 6-pin for Keyboard & Mouse

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Internal I/O
GPIO Onboard programmable 8-bit Digital I/O interface
Floppy 1 x Floppy port box header
Parallel 1 x Printer port box header
COM 1 x RS-232 box header, 1 x RS-232/422/485 selectable box header
USB 2 header, supports four USB 2.0 interface
Front Panel 1 header, supports Power & HDD LED, Power on/off, reset buttons
Display
Graphics Controller Intel® GM45 Integrated Intel® Gen 5.0 GMA 4500MHD Graphics
Display Memory Intel® Dynamic Video Memory Technology (Intel® DVMT 5.0)
Resolution Up to 2048 x1536 @ 75 Hz (QXGA)
Display Interface Dual Displays by VGA & DVI
DVI Pericom PI3VDP411LST
Ethernet
Controller LAN 1: Intel® 82567 Gigabit Ethernet PHY for iAMT 4.0 support
LAN 2: Intel® 82574L Gigabit Ethernet Controller
IEEE 802.3 10BASE-T / 100BASE-TX / 1000BASE-T compliant
Interface/connector
Dual RJ-45 rear panel connector with two LEDs indicators
Audio
HDAC Realtek® ALC883 High Definition audio codec
Rear Connector 3 audio jacks for Line In, Line Out, Microphone
On-board Header Line Out, MIC, CD In (one buzzer for boot)
Power Supply
Power Type 24-pin ATX power connector
FAN Power
Connector 1 x CPU Fan 3-pin, 2 x System Fan 3-pin wafer with DC 12V
Battery Lithium coin cell - CR2032
Environments
Compliance ROHS , WEEE
Operating
Temperature 0°C~60°C (32°F~140°F)
Storage Temperature -20°C~80°C (-68°F~176°F)
Operating Humidity 10%~90% relative humidity, non-condensing
Size (L x W) 9.6'' x 9.6'' (243.84mm x 243.84mm)

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1.3 System Architecture
All details are shown in AR-B5891 system block diagram.

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1.4 Dimensions

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CHAPTER 2

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2. Hardware Configuration Setting
This chapter gives the definitions and shows the positions of jumpers, headers and
connectors. All of the configuration jumpers on the board are in the proper position. T he
default settings shipped from factory are marked with an asterisk ().
In general, jumpers on the board are used to se lect options for cert ain features. Some of
the jumpers are designed to be user-configur able, allowing for sy stem enhancement. T he
others are for testing purpose onl y and should not be altered. T o select any option, cover
the jumper cap over (SHOR T) or remove (NC) it fro m the ju mper pins according to the
following instructions. Here, NC stands for “Not Connect”.

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2.1 Board Layout

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2.2 Jumpers & Connectors
JUMPERS FUNCTION REMARK
JP1 Clear CMOS 1 x 3 header
JP2 TPM setting 1 x 3 header
JP3 COM1 RS232/422/485 Setting 2 x 7 header
JP4 COM2 Pin9 Setting 2 x 3 header
JP5 COM3 Pin9 Setting 2 x 3 header
CONNECTORS DESCRIPTION REMARK
AUDIO1 Front Audio Header 2 x 5 header
CN1A VGA connector
CN1B DVI-D connector
CN3 Audio port
CN4 CD-IN header 1 x 4 header
CN9,10 PCI slot
CN11 Parallel Port 2 x 13 header
CN13,14 USB connector 2 x 5 header
CN16 Floppy header 2 x 17 header
CN19 COM2 & 3 connector
CN20 COM4 header 2 x 5 header
CN27 Main Power connector 2 x 12 connector
CN28 ~ 30 Fan power connector 1 x 3 header
CN31 Front panel header 2 x 5 header
CN32 Digital I/O 2 x 5 header
CN33 Keyboard & Mouse port
COM1 RS-232/422/485 header 2 x 7 header
DIMM1, 2 Memory socket
IDE1 IDE connector
PCIE1 PCI-E x16 Slot
PCIE2 PCI-E x4 Slot
SATA1 ~ 4 SATA connector
USB1LAN1 LAN & USB Connector
USB1LAN2 LAN & USB Connector

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2.2.1 Clear CMOS: JP1
PIN No. Description
1-2 Clea r CMOS
2-3 Normal operation
2.2.2 TPM setting: JP2
PIN No. Description
1-2 Normal operation
2-3 Clea r TPM
2.2.3 RS232/422/485 Setting: JP3 (COM1)
PIN No. RS-232 RS-422 RS-485
1 – 2 OFF ON ON
3 – 4 OFF ON ON
5 – 6 OFF OFF ON
7 – 8 OFF ON OFF
9 – 10 OFF OFF ON
11 – 12 OFF ON ON
13 – 14 ON OFF OFF
2.2.4 RS232 PIN9 Setting: JP4,JP5
(COM2 & 3)
PIN No. Description
1-2 RI 
3-4 5V
5-6 12V
2.2.5 Front Audio Header: AUDIO1
PIN
No. Description PIN No. Description
1 MIC2_L 2 GND
3 MIC2_R 4 PRESENCE_L
5 SURR_R 6 MIC2_JD
7 FONT-IO-SEN 8 NC
9 SURR_L 10 SURR_JD
2.2.6 CD_IN Header: CN4
Description PIN No. PIN No. Description
CD_R 1 2 CD_GND
CD_GND 3 4 CD_L
2.2.7 Parallel Port Header: CN11
Description PIN No. PIN No. Description
STROKE 1 2 AFD1#
P_D0 3 4 EPR#
P_D1 5 6 INIT1#
P_D2 7 8 SLIN1#
P_D3 9 10 GND
P_D4 11 12 GND
P_D5 13 14 GND
P_D6 15 16 GND
P_D7 17 18 GND
ACK# 19 20 GND
BUSY 21 22 GND
PE 23 24 GND
SLCT 25 26 NC
2.2.8 USB Header: CN13,CN14
Descriptio PIN No. PIN No. Description
5V_USB 1 2 5V_USB
USB4N 3 4 USB5N
USB4P 5 6 USB5P
GND 7 8 GND
KEY 9 10 GND
2.2.9 Flopp y header: CN16
Description PIN No. PIN No. Description
GND 1 2 RWC#
GND 3 4 NC
GND 5 6 NC
GND 7 8 INDEX#
GND 9 10 MOTA#
GND 11 12 NC
GND 13 14 DSA#
GND 15 16 NC
GND 17 18 FDIR#
GND 19 20 STEP#
GND 21 22 WDATA#
GND 23 24 WGATE#
GND 25 26 TRAK0#
GND 27 28 WPRT#
NC 29 30 RDATA#
GND 31 32 HEAD#
NC 33 34 DSKCHG#

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2.2.10 RS232 Header: CN20 (COM4)
Description PIN No. PIN No. Description
DCD# 1 2 RXD#
TXD# 3 4 DTR
GND 5 6 DSR
RTS 7 8 CTS
RI 9 10 NC
2.2.11 Main Power connector:CN27
2.2.12 Fan Connector : CN28 ~ 30
PIN No. Description
1 GND
2 +12V
3 ICH_T ACH (SENSOR)
2.2.13 Front Panel Header: CN31
Description PIN No. PIN No. Description
5V 1 2 PWR_LED
HDD_LED 3 4 GND
GND 5 6 PWR_SW
RST_SW 7 8 GND
NC 9 10 Key
Description PIN No. PIN No. Description
3.3V 1 13 3.3V
3.3V 2 14 -12V
GND 3 15 GND
5V 4 16 PS_ON_#
GND 5 17 GND
5V 6 18 GND
GND 7 19 GND
ATXPWRGD 8 20 Reserved
5V_STBY 9 21 5V
12V 10 22 5V
12V 11 23 5V
3V3 12 24 GND
2.2.14 Digit al I/O Header: CN32
Description PIN No. PIN No. Description
VCC5 1 2 DI1
DO1 3 4 DI2
DO2 5 6 DI3
DO3 7 8 DI4
DO4 9 10 GND
2.2.15 IDE Connector: IDE1
Description PIN
No.
PIN
No. Description
PD_RST# 1 2 GND
PDD 7 3 4 PDD 8
PDD 6 5 6 PDD 9
PDD 5 7 8 PDD 10
PDD 4 9 10 PDD 11
PDD 3 11 12 PDD 12
PDD 2 13 14 PDD 13
PDD 1 15 16 PDD 14
PDD 0 17 18 PDD 15
GND 19 20 5V (for DOM)
PDDREQ 21 22 GND
PDIOW# 23 24 GND
PDIOR# 25 26 GND
PIORDY 27 28 GND
PDDACK# 29 30 GND
IRQ 31 32 IOCS16
PDA1 33 34 P66DET
PDA 0 35 36 PD_A2
PDCS#1 37 38 PDCS#3
PATALED# 39 40 GND

CHAPTER 3

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3. Sy stem Installation
This chapter provides you with i nstructions on how to setup your system. The additional
information shows you how to install CPU/ FAN and memory.
3.1 Processor installation
This motherboard supports Intel® Core™ 2 Duo Mobile processors using Socket P . Before
building your system, we suggest you to visit the Intel website and review the processor
installation procedures. (http://www.intel.com)
3.1.1 Inst alling Intel® Core™ 2 Duo Mobile processors
• Use a screwdriver to turn the screw counter-clockwise until the dot on the screw
points to ”unlocked” sign. (3 o’clock position)
• On the socket, locate the pin-1 receptor. Match the pin-1 marker on the CPU with the
pin-1 receptor of the socket and then gently lower the CPU onto the socket.
• Next, turn the screw clockwise until it points to the “locked” sign (9 o’clock position) –
this will lock the CPU into the socket.
• Smear thermal grease on the top of the CP U. Lower the CPU f an onto the CPU and
secure it using the att achments or screws provided on the fan. Finally, attaches the
fan connector to the CPU FAN header.
Unlock
Pin 1 of the
socket
Gold
triangular
mark
Lock

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Note:
1. Do not force the CPU into the so cket. It may bend the pins and damage the
CPU.
2. Do not touch the CPU pins in case they are damaged. Also, make sure that you
have completed all inst allation s teps bef ore powered on the system. Finally,
double-check that the cooli ng fan is property inst alled and the CPU fan power
connector is securely att ached, in case your CPU and other sensitiv e
components are damaged because of high temperatures.
3.1.2 Removing CPU
• Disconnect the CPU fan connector.
• Remove the CPU fan and heat sink first.
• Unlock the CPU.
• Carefully lift up the existing CPU to remove it from the socket.
• Follow the steps of installing a CPU to change to another one.