AR-1790 User’s Guide AR-B1790 INDUSTRIAL GRADE CPU BOARD User’s Guide Edition: 1.02 Book Number: AR-B1790-03.
AR-B1790 User’s Guide Table of Contents 0. PREFACE… … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … … .3 0.1 COPYRIGHT NOTICE AND DISCLAIMER....................................................................................................................................3 0.2 WELCOME TO THE AR-B1790 CPU BOARD ..............................................................................................................................3 0.3 BEFORE YOU USE THIS GUIDE ..
AR-1790 User’s Guide 0. PREFACE 0.1 COPYRIGHT NOTICE AND DISCLAIMER This document is copyrighted, 2002, 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.
AR-B1790 User’s Guide 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.
AR-1790 User’s Guide 1. INTRODUCTION Welcome to the AR-B1790 Embedded ATX Single Board Computer. The AR-B1790 board is Embedded ATX form factor board, which comes equipped with high performance Intel® Pentium 4 Processor with the Intel® advanced chipset the Intel® 845GV GMCH and ICH4 (Intel® 82801DB). 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-B1790 User’s Guide 1.2 PACKING LIST In addition to this User's Manual, the AR-B1790 package includes the following items: n The quick setup manual n AR-B1790 Embedded ATX Single Board n Software utility CD x 1 n FDD Cable x 1 (Optional) n 5.25” IDE HDD ATA 100Cable x 1(Optional) n 2.
AR-1790 User’s Guide 2. INSTALLATION This chapter describes how to install the AR-B1790. At first, the layout of AR-B1790 is shown, and the unpacking information that you should be careful is described. The jumpers and switches setting for the AR-B1790’s configuration are as below. 2.
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AR-1790 User’s Guide 2.2 CPU INSTALLATION This main board supports Intel Pentium 4/Celeron, Socket 478 series CPU. Please follow the step as below: n Be careful of CPU orientation when you plug it into CPU socket. n Pull up the CPU socket lever and up to 90° n Locate Pin 1 in the socket and look for a black dot or cut edge on the CPU upper interface. Match Pin 1 and cut edge, then insert into the CPU socket.
AR-B1790 User’s Guide n Press down the CPU socket lever and finish CPU installation. The Intel Pentium 4/Celeron processor requires a set of heatsink/fan to ensure proper cooling of processor. If heatsink/fan have not been already bundled with your CPU, you must purchase the heatsink/fan separately and have it installed. Plug the cable through the heatsink/fan in the CPU fan power connector located nearby. Note that there are seceral types of CPU fan connector.
AR-1790 User’s Guide 3. CONNECTION This chapter describes how to connect peripherals, switches and indicators to the AR-B1790 board. 3.1 IDE DISK DRIVE CONNECTOR (IDE1, IDE2) • IDE1: Primary IDE Connector A 40-pin header type connector (IDE1) is provided to interface with up to two embedded hard disk drives (IDE AT bus). This interface, through a 40-pin cable, allows the user to connect up to two drives in a “daisy chain” fashion.
AR-B1790 User’s Guide • IDE 2: Second IDE Connector AR-B1790 also provides IDE interface 44-pin connector to connect with the hard disk device.
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AR-1790 User’s Guide 3.6 USB CONNECTOR (USB1, USB2, USB3) USB1&USB2 5 6 7 8 1.VCC 5.VCC 2.DATA0+ 6.DATA1+ 3.DATA0- 7.DATA11 2 3 4 4.GND 8.GND USB 3 2 10 1 9 1.VCC 6.DATA3+ 2.GND 7.GND 3.DATA28.DATA3 4.GND 9.GND 5.DATA2+ 10.VCC 3.7 FAN POWER CONNECTOR The AR-B1790 provides CPU cooling Fan connector. CPU connectors can supply 12V/500mA to the cooling fan. 3 2 1 FAN1 FOR CPU FAN FAN2 FOR SYSTEM FAN FAN3 FOR CASE FAN PIN 1 2 3 Signal GND +12V SENSE 3.
AR-B1790 User’s Guide 3.9 PARALLEL & COM1 & VGA PORT (PT1) AR-B1790 built-in a 9-pin standard COM port, a 15-pin VGA port and 1 LPT port. Device like printer can de connected to LPT port . Mouse and modem etc can de connected to COM port. CRT monitor can be connected to VGA port.
AR-1790 User’s Guide 3.11 GPIO PORT (GPIO1) PIN 1 3 5 7 9 11 13 15 17 2 18 1 17 DEFINE GPI0 GPI1 GPI2 GPI3 GPI4 GPI5 GPI6 GPI7 VCC5V PIN 2 4 6 8 10 12 14 16 18 DEFINE GPO0 GPO1 GPO2 GPO3 GPO4 GPO5 GPO6 GPO7 GND 3.12 ATX POWER CONNECTOR (PWR1) 1 10 11 20 Pin 1 2 3 4 5 6 7 8 9 10 Signal 3.3V 3.3V GND 5V GND 5V GND PW-OK 5VSB 12V Pin 11 12 13 14 15 16 17 18 19 20 Signal 3.3V -12V GND PSON GND GND GND -5V 5V 5V 3.
AR-B1790 User’s Guide 3.14 DUAL LVDS CONNECTOR (LVDS1, LVDS2) 2 26 1 25 LVDS1 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 Signal TXOUT0GND TXOUT0+ GND TXOUT1LVDSVCC TXOUT1+ LVDSVCC TXOUT2N.C TXOUT2+ GND TXCLK1- PIN 14 15 16 17 18 19 20 21 22 23 24 25 26 Signal GND TXCLK1+ VTX12 TXOUT3VTX12 TXOUT3+ GND VTKBP N.C LVDSVCC N.C LVDSVCC N.C PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 Signal TXOUT4GND TXOUT4+ GND TXOUT5LVDSVCC TXOUT5+ LVDSVCC TXOUT6N.
AR-1790 User’s Guide 3.15 LVDS PANEL VOLTAGE SELECT (JP8) 1 2 5 6 JP8 1-3 2-4 ON 3-5 4-6 ON VOLTAGE +5V +3.3V (Factory Preset) 3.16 CONTROL LVDS PANEL BACK-LIGHT (JP9) 3 2 PIN 1 2 3 1 Signal +12V GND EBLT 3.17 COM VOLTAGE SELECT (JP11, JP12, JP13) 1 2 5 6 PIN Signal PIN Signal 1 COM VOLTAGE 2 +12V 3 COM VOLTAGE 4 +5V 5 COM VOLTAGE 6 GND (Factory Preset) ﹡JP11 SELECT COM1 PIN 10 VOLTAGE ﹡ ﹡JP12 SELECT COM2 PIN 10 VOLTAGE ﹡ ﹡JP13 SELECT COM3 PIN 10 VOLTAGE ﹡ 3.
AR-B1790 User’s Guide 3.21 CLEAR CMOS (JP6) JP6 1 1-2 ON 2-3 ON 3 FUNCTION Norm al Operation (Factory Preset) Clear CMOS 3.22 FRONT PANEL (JP7) PIN 1 3 5 7 9 11 13 15 17 19 21 2 22 1 21 Signal 5VSUS POWER BUTTON N.C GREEN BUTTON GND N.C VCC PRIMARY HDD ACT LED VCC SECONDARY N.C PIN 1-3 7-9 13-15 17-19 2-4 8-10 14-16 20-22 PIN 2 4 6 8 10 12 14 16 18 20 22 Signal VCC POWER LED N.C 5VSB SUSPEND LED N.C 5V EXTERNAL SPEAKER N.
AR-1790 User’s Guide 3.23 COMPACT FLASH (CF1) 50 1 Compact Flash (CF1) and IDE 2 share the same channel. Since a Compact Flash card is installed in the socket, the IDE 2 device will become unusable. CF card & IDE2 device cannot use at the same time. 3.24 GAME/MINI PORT AND AUDIO CONNECT The connector supports joystick, MINI Keyboard and other relate audio device.
AR-B1790 User’s Guide 3.25 CD-IN CONNECTOR (CD-IN) The connector is for CD-ROM audio connector PIN 1 2 3 4 1 4 Signal CD_L GND GND CD_R 3.26 CPU SPEED SELECT (JP5) JP5 1 1-2 SPEED CPU SELECT (Factory Preset) 2-3 100MHz EMPTY 133MHz 3 3.27 CF VOLTAGE SELECT (JP23) 1 JP23 VOLTAGE 2 1-2 +3.3V 3 2-3 +5V Factory Preset 3.
AR-B1790 User’s Guide 4. WATCHDOG TIMER This section describes the use of Watchdog Timer, including disable, enable, and trigger. AR-B1790 is equipped with a programmable time-out period watchdog timer that occupies I/O port 443H. Users can use simple program to enable the watchdog timer. Once you enable the watchdog timer, the program should trigger it every time before it times out.
AR-B1790 User’s Guide 5. BIOS CONSOLE This chapter describes the AR-B1790 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 menus.
AR-B1790 User’s Guide CAUTION: 1. AR-B1790 BIOS the factory-default setting is used to the Acrosser recommends using the BIOS default setting, unless you are very familiar with the setting function, or you can contact the technical support engineer. 2. If the BIOS settings are lost, the CMOS will detect the to boot the operation system, this option will reduce the performance of the system.
AR-B1790 User’s Guide Primary/Secondary Master/Slave Press PgUp/<+> or PgDn/<-> to select Manual, None or Auto type. Note that the specifications of your drive must match with the drive table. The hard disk will not work properly if you enter improper information for this category. If your hard disk drive type is not matched or listed, you can use Manual to define your own drive type manually. If you select Manual, related information is asked to be entered to the following items.
AR-B1790 User’s Guide Quick Boot 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. 1st/2nd/3rd Boot Device The items allow you to set the sequence of boot devices where BIOS attempts to load the disk operating system. The settings are: Floppy LS120 HDD-0 CDROM HDD-1 HDD-2 HDD-3 ZIP LAN Disabled The system will boot from floppy drive. The system will boot from LS-120 drive.
AR-B1790 User’s Guide Boot to OS/2 When using the OS/2 operating system, you need to Yes this option otherwise leave this on the setup default of No. L1 Cache This option specifies the caching algorithm used for L1 internal cache memory. L2 Cache This option specifies the caching algorithm used for L2 secondary (external) cache memory. 5.4 ADVANCED CHIPSET SETUP This option controls the configuration of the board’s chipset. Control keys for this screen are the same as for the previous screen.
AR-B1790 User’s Guide Hyper Threading Function Enabling the functionality of Hyper-Threading Technology for your computer system requires ALL of the following platforms. Components: • CPU - an IntelR Pentium R 4 Processor with HT Technology • Chipset - an IntelR chipset that supports HT Technology • BIOS - a BIOS that supports HT Technology and has it enabled • OS - an operating system that includes optimizations for HT Technology For more information on Hyper-Threading Technology, go to: www.intel.
AR-B1790 User’s Guide 5.5 POWER MANAGEMENT This section is used to configure power management features. This option allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk after a period of inactivity. Power Management Keyboard PowerOn Function This parameter allows you to use specific keys on the keyboard to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.
AR-B1790 User’s Guide Resume On LAN If you are using a LAN card that supports the remote wake up function, set this field to Enabled. The will allow the network to remotely wake up a Soft Power Down (Soft-Off) PC. However, if your system is in the Suspend mode, you can wake up the system only through an IRQ or DMA interrupt. 5.6 PCI/PLUG AND PLAY This section is used to configure PCI / Plug and Play features. The option configures the PCI bus slots.
AR-B1790 User’s Guide 5.7 PERIPHERAL SETUP This section is used to configure peripheral features. Peripheral Setup OnBoard IDE This option is to set up the operating mode of IDE controller. If the main board offers the enhanced I/O port, the choice should be . OnBoard AC’97 Audio This option allows you to select AC97 audio chip support Audio. Auto：BIOS will automatically select onboard AC97 audio.
AR-B1790 User’s Guide IR Pin Select Please consult your IR peripheral documentation to select the correct setting of the TxD and RxD signals. Setting options: RxD2,TxD2, IR-Rx2Tx2. OnBoard Parallel Port This option enables the parallel port on the AR-B1790. Parallel Port Mode This option specifies the parallel port mode. ECP and EPP are both bi-directional data transfer schemes that adhere to the IEEE 284 specifications.
AR-B1790 User’s Guide 5.8 AUTO-DETECT HARD DISKS This option detects the parameters of an IDE hard disk drive, and automatically enters them into the Standard CMOS Setup screen. 5.9 PASSWORD SETTING This BIOS Setup has an optional password feature. The system can be configured so that all users must enter a password every time the system boots or when BIOS Setup is executed. User can set either a Supervisor password or a User password.
AR-B1790 User’s Guide 5.12 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 upgrade your BIOS firmware without removing and installing chips. The AR-B1790 provides the FLASH BIOS update function for you to easily to update to a newer BIOS version.
AR-B1790 User’s Guide APPENDIX A. ADDRESS MAPPING IO Address Map I/O MAP ASSIGNMENT 000-01F DMA controller (Master) 020-021 Interrupt controller (Master) 022-023 Chipset controller registers I/O ports. 040-05F Timer control registers.
AR-B1790 User’s Guide Memory Map: MEMORY MAP ASSIGNMENT 0000000-009FFFF System memory used by DOS and application Display buffer memory for VGA/ EGA / CGA / 00A0000-00BFFFF MONOCHROME adapter 00C0000-00DFFFF Reserved for I/O device BIOS ROM or RAM buffer.
AR-B1790 User’s Guide APPENDIX B.
