Acrosser Technology Co., Ltd.
AR-B1894
Intel Pentium M
Mini ITX Main Board
User’s Manual
V 1.2
Copyright© May., 2007. All rights reserved
All other brand names are registered trademarks of their respective owners.
Copyright
All rights reserved. The information contained in this guide has been validated
and reviewed for accuracy. No patent liability is assumed with respect to the use
of the information contained herein. While every precaution 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
Intel®, Pentium® and Celeron® are registered trademarks of Intel® Corporation.
Microsoft® and Windows® are registered trademarks of Microsoft Corporation.
All products and company names 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 from your products and be willing
to help if running into technical difficulties. For the most frequently asked
questions, it’s easily found answers from the product documentation and usually
a lot more detailed, so please take reference to this manual first. If the answer
still 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 solved over the phone. In addition, free
technical 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
How to Use This Manual
This manual is written for the system integrator, PC technician and
knowledgeable PC end user. It describes how to configure your AR-B1894 to
meet various operating requirements. The user’s manual is divided into four
chapters, with each chapter addressing a basic concept and operation of the
server board.
Chapter 1: Introduction - presents what you have inside the box and gives you
an overview of the product specifications and basic system architecture for the
AR-B1894 server board.
Chapter 2: Hardware Configuration Setting - shows the definitions 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, and M-System Flash disk for a safe installation. It will also
introduce and show you the driver installation procedure for the Graphics
Controller and Ethernet Controller.
Chapter 4: BIOS Setup Information - specifies the meaning of each setup
parameter, how to get advanced BIOS performance and update to a new BIOS.
Note:
(1) Memory type support dual-channel interleaved mode assuming DDR2
533 MHz, all DIMMs in a system must be of the same type, the speed in
all channels is the speed of the slowest DIMM in the system.
Table of Content
1. INTRODUCTION..................................................................................................... 6
1.1 DESCRIPTION................................................................................................................................6
1.2 PACKING CHECK LIST................................................................................................................... 7
1.3 SPECIFICATIONS ........................................................................................................................... 8
1.4 SYSTEM ARCHITECTURE ............................................................................................................ 10
1.5 DIMENSIONS ...............................................................................................................................11
2. HARDWARE CONFIGURATION SETTING .................................................... 12
2.1 BOARD LAYOUT ......................................................................................................................... 12
2.2 JUMPERS & CONNECTORS.......................................................................................................... 13
2.3 JUMPERS/CONNECTORS SETTING ............................................................................................... 15
2.3.1 RTC CMOS Clear Select (JP1)............................................................................................. 15
2.3.2 CPU Frequency Select (JP4)................................................................................................ 15
2.3.3 Internal Audio for Chassis (AUDIO1).................................................................................. 15
2.3.4 Audio Connector (AUDIO2)................................................................................................. 15
2.3.5 CD-In from CD-ROM (CD1)................................................................................................ 15
2.3.6 Chassis/CPU/System Connectors (CHS_FAN1, CPU_FAN1, SYS_FAN1)........................... 15
2.3.7 COM1 / VGA & COM2 Connector (COM2, VGA_COM1).................................................. 16
2.3.8 DVI Connector (DVI............................................................................................................. 17
2.3.9 GPIO Connector (GPIO1).................................................................................................... 17
2.3.10 IrDA Connector (IR1)...................................................................................................... 17
2.3.11 PS/2 Keyboard & Mouse (KBMS1).................................................................................. 18
2.3.12 LAN LED Connector (LAN_LED1)................................................................................. 18
2.3.13 LAN 1/2/3 & USB 1/2 Connectors (LAN2_LAN3, USB1LAN1) ...................................... 18
2.3.14 LCD Inverter Connector (LVDS1)................................................................................... 18
2.3.15 LVDS Connector (LVDS2)............................................................................................... 19
2.3.16 Front Side Indicators (PANEL1)...................................................................................... 20
2.3.17 24-pin ATX Power Connector (PWR1)............................................................................ 20
2.3.18 Serial ATA 1/2 Connectors (SATA1, SATA2).................................................................... 20
2.3.19 Internal Speaker Connector (SPK1)................................................................................ 20
2.3.20 Internal USB 3/4/5/6 Connectors (USB2, USB3)............................................................. 20
3. SYSTEM INSTALLATION................................................................................... 21
3.1 SOCKET 478 PROCESSORS.......................................................................................................... 21
3.1.1 Installing Intel® Pentium® M / Celeron® M CPU................................................................. 21
3.2 INSTALLING COOLING FAN......................................................................................................... 21
3.3 MAIN MEMORY.......................................................................................................................... 22
3.4 INSTALLING THE MINI-ITX........................................................................................................ 23
3.4.1 Intel 915GM Integrated Graphics Controller....................................................................... 23
3.4.2 Triple Marvell Gigabit Ethernet Controller.......................................................................... 24
3.4.3 Drivers Support .................................................................................................................... 24
4. BIOS SETUP........................................................................................................... 25
4.1 ENTERING SETUP ....................................................................................................................... 25
4.2 MAIN MENU............................................................................................................................... 25
4.2.1 Standard CMOS Features..................................................................................................... 26
4.2.2 Advanced BIOS Features...................................................................................................... 27
4.2.3 Advanced Chipset Features.................................................................................................. 31
4.2.4 Integrated Peripheral...........................................................................................................34
4.2.5 Power Management Setup.................................................................................................... 38
4.2.6 PnP/PCI Configurations....................................................................................................... 40
4.2.7 PC Health Status...................................................................................................................43
4.2.8 Frequency/Voltage Control................................................................................................... 44
4.2.9 Load Fail-Safe Default......................................................................................................... 44
4.2.10 Load Optimized Defaults................................................................................................. 45
4.2.11 Supervisor/User Password Setting................................................................................... 45
4.2.12 Exit Selection................................................................................................................... 47
1. Introduction
1.1 Description
The AR-B1894 all-in-one Mini ITX is designed to fit a high performance Pentium
M based processor and compatible for high-end computer system application
with PCI bus architecture. It is made to meet today’s demanding pace, and keep
complete compatibility with hardware and software designed for the IBM PC/AT.
The on-board devices support one PCI slot, integrated graphics, and on-board
three Marvell Gigabit Ethernet controllers. It’s beneficial to build up a high
performance and high data availability system for VARs, or system integrators.
AR-B1894 support the following processors:
Intel ® uFC-PGA 478 Pentium M® / Celeron M processor FSB 400/533 MH
with 0.90 and 0.13 micron technology.
This Mini ITX can run with Intel Socket 479 Pentium/Celeron M processors and
support DIMM up to 2 GB dual-channel DDR2 533 memory. The enhanced onboard one PCI-IDE interface can support 1 drive up to PIO mode 4 timing and
Ultra ATA 33/66/100 synchronous mode feature, one CF socket interface, and 2
Serial ATA high-speed data transfers at up to 150 MB/s connectors. The onboard Super I/O chipset supports two serial ports, one SIR (Serial Infrared) port,
two high performance 16C550-compatible UARTs provide 16-byte send/receive
FIFOs, and two RS-232 serial port interfaces. Besides, H/W monitor function,
Intel High Definition Audio as 5.1 surround sound, six Hi-Speed USB 2.0 ports
offering up to 40X greater bandwidth over USB 1.1. Also provide dual display
function by VGA and DVI, by VGA, and LVDS interface.
The Mini-ITX standard makes the AR-B1894 work with the one slot PCI and one
6-pin Mini-DIN connector for PS/2 mouse and keyboard. The on-board Flash
ROM is used to make the BIOS update easier. The high precision Real Time
Clock/calendar is built to support Y2K for accurate scheduling and storing
configuration information. One 20-pin standard connector is designed to support
ATX power function. A feature of CPU overheat protection will give user more
security and stability. All of these features make AR-B1894 series excellent in
stand-alone applications.
Note: 1) The AR-B1894 only support Intel Pentium/Celeron M processor
(Dothan 400/533 FSB) for 0.13 and 0.90 micron.
2) The AR-B1894 only support DDR2 533 memory module.
1.2 Packing Check List
The AR-B1894 package includes the following basic items accompany with this
manual.
One AR-B1894 Mini ITX
One Quick Installation Guide for AR-B1894
One 40-pin IDE cable
One Serial ATA cable
One Serial port cable for COM2
One I/O Shield bracket
One Supporting CD-ROM contains User’s Manual and internal VGA
display driver and Marvell Gigabit Ethernet network controller driver and
on board devices drivers
If any of these items is damaged or missed, please contact your vendor and save
all packing materials for future replacement and maintenance.
1.3 Specifications
System
CPU
FSB FSB 533/400 MHz
BIOS Award BIOS with 4 Mb Flash ROM
System Chipset Intel® 915GM + ICH6M
I/O Chip Winbond W83627THG-AW supports two serial ports
System Memory
Storage
SSD 1 x CompactFlash Type I/II Socket
Watchdog Timer Reset: 1 sec.~255 min. and 1 sec. or 1 min./step
H/W Status Monitor
Real Time Clock Built-in ICH6M with Y2K compliant
GPIO On-board programmable 8-bit Digital I/O interface
Supports Intel μFC-PGA 478 Pentium® M / Celeron® M Processor with
65nm / 90nm process technology, up to 2.26G / 2.0G
2 x 240-pin DIMM sockets support dual channel DDR2 from 128 MB to 2
GB at 400/533 MHz memory bus
1 x Ultra DMA100/66/33 support two IDE devices by 40-Pin IDE
connector ; 2 x Serial ATA connectors high-speed data transfer at up to
150 MB/s
Monitoring system temperature, voltage, and cooling fan status.
Auto throttling control when CPU overheats.
System automatically restored on recovery of AC power loss.
Expansion 1 x 32-bit PCI slot compliant with PCI v2.3 specification
MIO
Internal 1 x RS-232, 4 x USB 2.0
External 1 x RS-232, 1 x K/B, 1 x Mouse, 3 x LAN & 2 x USB 2.0
Display
Chipset Intel® 915GM Integrated Intel® GMA 900 graphics
Display Memory Intel® DVMT 3.0 supports up to 128 MB video memory
CRT mode: support maximum resolution up to 2048 x 1536 at fresh rate
Resolution
VGA/LCD Interface DSUB-15 VGA connector for DAC output
LVDS Dual Channel 18-bit LVDS
DVI Chrontel CH7307 DVI transmitter
75Hz (QXGA)
Multiple maximum overlay display resolution up to 1600x1200 at 85 Hz
(UXGA)
Audio
Chipset Intel® ICH6M
AC97 Codec Realtek ALC655 AC97 5.1 CH 3D audio interface
Audio Interface Mic in, Line in, CD Audio in, Line out, Rear out and Center/Subwoofer out
Ethernet
Chipset Three Marvell® YukonTM-EC 88E8053 PCI Express
Ethernet Interface IEEE 802.3 10/100/1000BASE-T Gigabit Ethernet compliant
Mechanical & Environmental
Power Requirement
Power Type ATX
Operating Temperature 0~60°C (32~140°F)
Operating Humidity 0%~90% relative humidity, non-condensing
Size (L x W) 6.69" x 6.69" (170 mm x 170 mm)
Weight 0.94 lbs (0.43 Kg)
3.3 V @ 3.4 A, +5 V @ 359 mA, +12 V @ 1,92 A , -12 V @ 294 mA, 5 Vsb
@ 263 mA
TM
Ethernet controllers
1.4 System Architecture
All of details operating relations are shown in AR-B1894 system block diagram.
1.5 Dimensions
Unit: mm
2. Hardware Configuration Setting
This chapter gives the definitions and shows the positions of jumpers, headers
and connectors. All of the configuration jumpers on AR-B1894 are in the proper
position. The default settings shipped from factory are marked with an asterisk
().
In general, jumpers on the Mini ITX are used to select options for certain features.
Some of the jumpers are designed to be user-configurable, allowing for system
enhancement. The others are for testing purpose only and should not be altered.
To select any option, cover the jumper cap over (SHORT) or remove (NC) it from
the jumper pins according to the following instructions. Here, NC stands for “Not
Connect”.
2.1 Board Layout
2.2 Jumpers & Connectors
JUMPERS FUNCTION REMARK
JP1
JP4
CONNECTORS FUNCTION REMARK
AUDIO1
AUDIO2
CD1
CF1
CHS_FAN1
CPU_FAN1
COM2
DIMM1, DIMM2
RTC CMOS clear select 2 x 1 header
CPU frequency select 2 x 1 header
Internal audio for chassis 2 x 5 header
Audio connector Audio jack x 3
CD-In from CD-ROM 1 x 4 header
CompactFlash card connector
Chassis fan connector
CPU fan connector
Serial port 2 connector 2 x 5 header
240-pin DDR2 SDRAM 1 & 2 socket
DVI1
GPIO1
IDE1
IR1
KBMS1
LAN_LED1
LAN2_LAN3
LVDS1
LVDS2
PANEL1
DVI connector HIROSE
GPIO connector 2 x 5 header
Primary IDE connector 2 x 20 header
IrDA connector 2 x 3 header
PS/2 keyboard & mouse connector
LAN LED connector 2 x 6 header
LAN 2 & LAN 3 connectors
LCD inverter connector
LVDS connector HIROSE
Front side indicators: 2 x 5 header
IDE1 active LED (1-3)
System power on LED (2-4)
System reset LED (5-7)
System power on switch LED (6-8)
PCI1
PWR1
SATA1, SATA2
SPK1
SYS_FAN1
USB1LAN1
USB2, USB3
VGA_COM1
PCI slot
24-pin ATX power connector
Serial ATA 1 & 2 connector
Internal speaker connector 1 x 4 header
System fan connector
USB 1, 2 & LAN 1 connectors
Internal USB 3, 4 & 5, 6 connectors 2 x 5 header
D-sub 15-pin VGA & D-sub 9-pin serial
port 1 connectors
2.3 Jumpers/Connectors Setting
2.3.1 RTC CMOS Clear Select (JP1) 2.3.2 CPU Frequency Select (JP4)
OPEN
Normal Operation
SHORT
Clear CMOS
contents
OPEN
SHORT
400 MHz
533 MHz
2.3.3 Internal Audio for Chassis (AUDIO1) 2.3.4 Audio Connector (AUDIO2)
PIN No. Description
1 F_MIC1
2 Ground
3 F_MIC2
4 +5V
5 LOUTR
6 F_R
7 NC
8 NC
9 LOUTL
10 F_L
PIN No. Description
1 (Blue) Line-in
2 (Green) Speaker out
3 (Red) MIC-in
2.3.5 CD-In from CD-ROM (CD1) 2.3.6 Chassis/CPU/System Connectors
(CHS_FAN1, CPU_FAN1, SYS_FAN1)
PIN No. Description
1 CD-L
2 CD-Ground
3 CD-Ground
4 CD-R
PIN No. Description
1 GND
2 +12V
3 SENSE
4 Control (CPU_FAN1 only)
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