Copyright Notice This document is copyrighted, 2006, by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right to make improve- ments to the products described in this manual at any time without notice. No part of this manual may be reproduced, copied, translated or transmit- ted in any form or by any means without the prior written permission of Advantech Co., Ltd.
Page 3
1.0.1 A Message to the Customer Advantech customer services Each and every Advantech product is built to the most exacting specifica- tions to ensure reliable performance in the harsh and demanding condi- tions typical of industrial environments. Whether your new Advantech...
Page 4
Table 1.1: AIMB-740-6CB1 Model AIMB-740VE-6CB1 CPU: Single socket 478 Intel® Pentium® 4/ Celeron-D/ Mobile Pentium® 4-M Chipset 845GV DDR SDRAM ECC support Memory DDR200/266/333 AGP 4X slot VGA: Chipset integrated VGA LAN 1: 10/100Base-T, Intel 82562 LAN 2: 10/100Base-TIntel 82551 LAN 1: 10/100/1000Base-T Intel 82541 AIMB-740-6CB1 User’s Manual...
Advantech assumes no liability under the terms of this warranty as a consequence of such events. If an Advantech product is defective, it will be repaired or replaced at no charge during the warranty period. For out-of-warranty repairs, you will be billed according to the cost of replacement materials, service time and freight.
Page 7
740-6CB1 mechanically and electrically before shipment. It should be free of marks and scratches and in perfect working order upon receipt. As you unpack the AIMB-740-6CB1, check it for signs of shipping dam- age. (For example, damaged box, scratches, dents, etc.) If it is damaged or it fails to meet the specifications, notify our service department or your local sales representative immediately.
Page 10
2.12 Front Panel connector (CN16, 17, 18, 19, 21&29) ..24 Table 2.1: PS/2 or ATX power supply LED status ..25 2.13 H/W Monitor Alarm (CN22)........... 26 2.14 USB and LAN ports (CN31 and CN32)......27 2.15 CF socket (CN44, optional) ..........28 2.16 Line-out, Mic-in connector (CN55) ........
Page 11
4 Chipset Software Installation Utility ....56 Before you begin ............. 56 Introduction ..............56 Windows XP Driver Setup..........57 Chapter 5 VGA Setup (for AIMB-740-6CB1) ....62 Introduction ..............62 Dynamic Video Memory Technology......62 Windows XP Driver Setup..........63 Chapter 6 LAN Configuration ........70...
Page 12
Table B.23: Front audio conn (FP AUDIO; CN59)..122 B.25 8-pin Alarm Board connector (CN62) ......122 Table B.24: 8-pin Alarm Board connector (CN62) ..122 B.26 Case Open connector (CN64; only AIMB-740-6CB1). 123 Table B.25: Case Open connector (CN64) ....123 AIMB-740-B/741-B User’s Manual...
Page 13
B.27 Front Panel LAN LED connector (CN65) ....123 Table B.26: Front Panel LAN LED con. (CN65) ..123 B.28 System I/O Ports............124 Table B.27: System I/O ports........124 B.29 DMA Channel Assignments.......... 125 Table B.28: DMA channel assignments ..... 125 B.30 Interrupt Assignments ...........
It meets the requirements of a variety of applications where a commercial motherboard cannot fit. The AIMB-740-6CB1 utilizes Intel 845GV and supports Socket 478 Pen- tium® 4/Celeron-D/Mobile Pentium® 4-M (FSB 400/533MHz) up to 3.06 GHz. In addition to a high-speed processor, it supports up to 2GB DDR memory and has 2 DIMM sockets on board.
PS/2 mouse. • USB port: Supports up to six USB 2.0 and transmission rate up to 480Mbps. (Six USB ports are available in AIMB-740-6CB1) 1.3.4 VGA interface • Interface: •...
• Board weight: 0.7 kg (1.68 lb) 1.4 Jumpers and Connectors Connectors on the AIMB-740-6CB1 motherboard link it to external devices such as hard disk drives and a keyboard. In addition, the board has a number of jumpers used to configure your system for your applica- tion.
Table 1.2: Connectors Label Function Primary IDE connector Secondary IDE connector Floppy drive connector Parallel port USB port 4, 5 VGA connector (only for AIMB-740- 6CB1) Serial port: COM1 CN10 Serial port connector: COM2 CN10 Serial port connector: COM2 (RS 232/ 422/485) CN23 Serial port connector: COM3 (RS 232)
Page 21
Table 1.2: Connectors CN31 USB port 0, 1 & LAN1 CN32 USB port 2, 3 & LAN2 CN37 System FAN connector 2 CN44 CF socket (Optional) CN55 Line Out, Mic IN connector CN56 CD IN (Audio input from CD-ROM) CN57 AUX IN connector CN58 MDM IN connector...
1.7 Safety Precautions Warning! Always completely disconnect the power cord from your chassis whenever you work with the hardware. Do not make connections while the power is on. Sensitive electronic components can be damaged by sudden power surges. Only experienced electronics personnel should open the PC chassis.
1.8.2 CMOS clear (J1) The AIMB-740-6CB1 motherboard contains a jumper that can erase CMOS data and reset the system BIOS information. Normally this jumper should be set with pins 1-2 closed. If you want to reset the CMOS data, set J1 to 2-3 closed for just a few seconds, and then move the jumper back to 1-2 closed.
1.8.3 Watchdog timer output (J2) The AIMB-740-6CB1 contains a watchdog timer that will reset the CPU or send a signal to IRQ11 in the event the CPU stops processing. This fea- ture means the AIMB-740-6CB1 will recover from a software failure or an EMI problem.
Page 27
1.8.5 J15: Serial port pin out selection signal (RI)/power (5V or 12V) (User’s can use jumper settings to change pin outs of the RI pins of COM1~COM6.) 1.8.6 SW1 CPU Type Selection...
1.9 System Memory The top-left edge of the AIMB-740-6CB1 contains two sockets for 184- pin dual in-line memory modules (DIMMs). Both two sockets use 2.5 V double-data-rate synchronous DRAMs (DDR SDRAM). DIMMs are available in capacities of 64, 128, 256, 512 MB, or 1 GB. The sockets can be filled in any combination with DIMMs of any size, giving your AIMB- 740-6CB1 single board computer between 64 MB and 2 GB of memory.
CPU, the cache size is 256/128KB. In the Mobile Pentium 4(R)-M CPU, the cache size is 512KB. 1.12 Processor Installation The AIMB-740-6CB1 is designed for Intel Pentium® 4//Celeron-D/ Mobile Pentium® 4-M/Celeron® (socket 478). Note: Slim Heatsink & Fan is available from Advan- tech.
1.13 PCI Bus Routing Table Table 1.7: PCIBus Routing Table: PCI Slot ID SEL PCI Interrupt PCI1 AD31 INT B, C, D, A PCI2 AD30 INT C, D, A, B PCI3 AD29 INT D, A, B, C PCI4 AD28 INT A, B, C, D PCI5 AD27 INT B, C, D, A...
2.2 Primary and Secondary IDE connectors (CN1/2) You can attach up to four IDE (Integrated Drive Electronics) drives to the AIMB-740-6CB1’s built-in controller. The primary (CN1) and secondary (CN2) connectors can each accommodate two drives. Wire number 1 on the cable is red or blue and the other wires are gray.
2.3 Floppy Drive connector (CN3) You can attach up to two floppy disk drives to the AIMB-740-6CB1's onboard controller. You can use 3.5" (720 KB, 1.44 MB) drives. The motherboard comes with a 34-pin daisy-chain drive connector cable.
26-pin flat-cable connector, CN4. 2.5 USB Ports (CN6) The AIMB-740-6CB1's provides up to six ports of USB (Universal Serial Bus) interface, which gives complete Plug & Play and hot swap- ping for up to 127 external devices.The USB interface complies with USB Specification Rev.
2.7 Serial Ports (COM1: CN9, COM2: CN10, COM3: CN23, COM4: CN26, COM5: CN67, COM6: CN70 ) The AIMB-740-6CB1 offers six serial ports, CN9 as COM1 and CN10 as COM2, CN23 as COM3, CN26 as COM4, CN67 as COM5, CN70 as COM6..
using other IRQs may cause unexpected resource conflict. If you want to disable the ports or change the parameters, you can do this in the system BIOS setup. Different devices implement the RS-232/422/485 standards in different ways. If you are having problems with a serial device, be sure to check the pin assignments for the connector.
2.9 External Keyboard connector (CN12) In addition to the PS/2 mouse/keyboard connector on the AIMB-740- 6CB1's rear plate, there is also an extra onboard external keyboard con- nector. This gives system integrators greater flexibility in designing their systems. 2.10 CPU Fan connector (CN14) If fan is used, this connector supports cooling fans of 500mA (6W) or less.
2.11 System FAN connector (CN15 and CN37) If fan is used, this connector supports cooling fans of 500mA (6W) or less. 2.12 Front Panel connector (CN16, 17, 18, 19, 21&29) There are several external switches to monitor and control the AIMB- 740-6CB1.
2.12.2 External speaker (CN17) CN17 is a 4-pin connector for an external speaker. If there is no external speaker, the AIMB-740-6CB1 provides an onboard buzzer as an alterna- tive. To enable the buzzer, set pins 3-4 as closed 2.12.3 Reset (CN18) Many computer cases offer the convenience of a reset button.
2.12.6 SM Bus connector (CN29) This connector is reserved for Advantech's SNMP-1000 HTTP/SNMP Remote System Manager. The SNMP-1000 allows users to monitor the internal voltages, temperature and fans from a remote computer through an Ethernet network.
2.14 USB and LAN ports (CN31 and CN32) The AIMB-740-6CB1 provides up to six USB (Universal Serial Bus) ports, which gives complete Plug & Play and hot swapping for up to 127 external devices.The USB interface complies with USB Specification Rev.
2.15 CF socket (CN44, optional) The AIMB-740-6CB1 provides one optional CF socket, which is compat- ible with type I and type II CF cards. The CF socket shares the same resource with secondary IDE interface. CF card is only available for mas- ter mode.
2.17 Audio Input from CD-ROM (CD IN; CN56) The CD IN is a connector for CD-ROM to input the audio signal. 2.18 Aux Line-In connector (AUX IN; CN57) The connector is for audio device with Line-in connector. Chapter 2...
2.19 Modem-In connector (MDM IN; CN58) The connector is for modem with internal audio connector. 2.20 Front Panel Audio connector (FP AUDIO; CN59) The FPAUDIO is a front panel audio connector compliant with Intel® Front Panel I/O Connectivity Design Guide. To direct the audio signal output to the rear audio ports, the 5 and 6 pins, 9 and 10 pins must be shorted by jumper to activate the rear panel audio function.
2.21 8-pin Alarm Board connector (CN62) The 8-pin alarm board connector is for Advantech chassis with alarm board. 2.22 Case Open connector (CN64) The 2-pin case open connector is for chassis with case open censor. While opening the case, the buzzer on motherboard will ring.
2.24 Auxiliary 4-pin Power connector (ATX1) To ensure the sufficiency of power supply for Pentium® 4 motherboard, one auxiliary 4 pin power connector is available on AIMB-740-6CB1. It is strongly suggested to use ATX1 while the system is unstable. 2.25 RS 232/422/485 selection (J13 & J14)
2.26 Serial Port Pin-out selection Signal (RI)/Power (5V or 12V) (J15) User’s can use jumper settings to change pin outs of the RI pins of COM1~COM6. 2.27 SW1 CPU selection (SW1) Make sure the switch setting of SW1 correspond to the CPU type you are using, if the switch setting of SW1 is incorrect, the system will NOT boot to avoid from CPU damage.
Chapter 3 Award BIOS Setup 3.1 Introduction Award’s BIOS ROM has a built-in setup program that allows users to modify the basic system configuration. This type of information is stored in battery-backed memory (CMOS RAM) so that it retains the setup information when the power is turned off.
3.2 Entering Setup Turn on the computer and press <Del> to allow you to enter the BIOS setup. Figure 3.1: Award BIOS Setup initial screen 3.3 Standard CMOS Setup Choose the “Standard CMOS Features” option from the “Initial Setup Screen” menu, and the screen below will be displayed. This menu allows users to configure system components such as date, time, hard disk drive, floppy drive, display, and memory.
The “Advanced BIOS Features” screen appears when choosing the “Advanced BIOS Features” item from the “Initial Setup Screen” menu. It allows the user to configure the AIMB-740-6CB1 according to his partic- ular requirements. Below are some major items that are provided in the Advanced BIOS Features screen.
3.4.4 Quick Power On Self Test Allows the system to skip certain tests while booting. This will decrease the time needed to boot the system. 3.4.5 First/Second/Third Boot Device The BIOS tries to load the OS with the devices in the sequence selected. Choices are: "Floppy", "LS120", "HDD-0", "SCSI", "CDROM", "HDD- 1", "HDD-2", "HDD-3", "ZIP100", "USB-FDD", "USB-ZIP", "USB- CDROM", "USB-HDD", "LAN", "Disabled".
3.4.13 Security Option Select whether the password is required every time the system boots or only when you enter setup. "System" The system will not boot, and access to Setup will be denied if the correct password is not entered at the prompt. "Setup"...
Figure 3.4: Advanced chipset features screen 3.5.1 DRAM Timing Selectable This item allows you to control the DRAM speed. The selections are "Manual" or "By SPD". 3.5.2 CAS Latency Time This controls the latency between DDR RAM read command and the time that the data actually becomes available.
3.5.7 Memory Frequency To adjust the frequency of memory. The choice : "PC100", "PC133" and "Auto". 3.5.8 System BIOS Cacheable Selecting Enabled allows caching of the system BIOS ROM at F0000h- FFFFFh, resulting in better system performance. However, if any pro- gram writes to this memory area, a system error may occur.
3.6 Integrated Peripherals 3.6.1 On-Chip Primary/Secondary PCI IDE IDE Primary (Secondary) Master/Slave PIO/UDMA Mode (Auto) Each channel (Primary and Secondary) has both a master and a slave, making four IDE devices possible. Because each IDE device may have a different Mode timing (0, 1, 2, 3, 4), it is necessary for these to be independent.
3.6.5 AC97 Audio Select Disable if you do not want to use AC-97 audio. Option is "Auto", "Disabled". 3.6.6 Init Display First This item allows you to choose which one to activate first, PCI Slot or on- chip VGA. The choices: "PCI Slot", "Onboard/AGP". 3.6.7 Onboard LAN1 Control Options are "Enabled"...
3.6.14 Onboard Serial Port 1 ~ 6 Please refer to the below COM port IRQ and I/O address assignment, inappropriate assignment may cause unexpected resource conflict. Table 3.1: COM Port IRQ Assignment COM Port COM 1 IRQ 3 / IRQ 4 COM 2 COM 3 IRQ 5 / IRQ 10 /...
3.6.20 Onboard Parallel Port This field sets the address of the on-board parallel port connector. You can select either "378/IRQ7", "278/IRQ5", "3BC/IRQ7", or "Disabled". If you install an I/O card with a parallel port, make sure there is no conflict in the address assignments.
3.7 Power Management Setup The power management setup controls the single board computer's “green” features to save power. The following screen shows the manufac- turer’s defaults: Figure 3.6: Power management setup screen (1) 3.7.1 ACPI function The choice: "Enabled", "Disabled". 3.7.2 ACPI Suspend Type The Choice : "S1(POS)", and "S3(STR)".
User Defined Allows you to set each mode individually. When not dis- (Default) abled, each of the ranges are from 1 min. to 1 hr. except for HDD Power Down which ranges from 1 min. to 15 min. and disable. 3.7.4 Video Off Method To select the method to off the video.
3.7.14 FDD, COM, LPT PORT When Enabled, the system will resume from suspend mode if FDD, COM port, or LPT port is active. The choice: "Enabled", "Disabled". 3.7.15 PCI PIRQ [A-D]# When Enabled, the system will resume from suspend mode if interrupt occurs.
3.8 PnP/PCI Configurations Figure 3.8: PnP/PCI configurations screen 3.8.1 Reset Configuration Data Default is Disable. Select Enable to reset Extended System Configura- tion Data (ESCD) if you have installed a new add-on and system configu- ration has caused such a conflict that OS cannot boot. 3.8.2 Resources Controlled By The commands here are "Auto (ESCD)"...
3.9 PC Health Status 3.9.1 CPU Warning Temperature This item will prevent the CPU from overheating. The choices are: "Dis- abled", "50C/122F", "53C/127F", "56C/133F", "60C/140F", "63C/145F", "66C/151F", "70C/158F". Figure 3.9: PC health status screen 3.9.2 Current CPU Temperature This shows you the current CPU temperature. 3.9.3 Current System FAN1/FAN2 Speed This shows you the current System FAN1/FAN2 operating speed.
3.10 Spread Spectrum Control Figure 3.10: Spread Spectrum Control screen 3.10.1 CPU Clock Ratio Key in a DEC number to setup the CPU Clock Ratio. (Min=8; Max=50). This item only shows up under some special situations. 3.10.2 Spread Spectrum To enable/disable the spread spectrum. The Choice : "Enabled", "Dis- abled".
Please Confirm Your Password Enter the current password and press <Enter>. After pressing <Enter> (ROM password) or the current password (user-defined), you can change the password stored in the CMOS. The password must be no longer than eight (8) characters. Remember, to enable the password setting feature, you must first select either “Setup”...
Chapter 4 Chipset Software Installation Utility 4.1 Before you begin To facilitate the installation of the enhanced display device drivers and utility software, you should read the instructions in this chapter carefully before you attempt installation. The device drivers for the AIMB-740- 6CB1 board are located on the software installation CD.
720 pixel DVD content, and MPEG-2 motion compensation for soft- ware DVD Note: This utility is used for the following versions of Windows system, and it has to be installed before installing all the other drivers: Windows 98SE Windows 2000 Windows Me Windows XP 4.3 Windows XP Driver Setup...
Page 72
Click "Yes" when you see the following message. Click "Next" when you see the following message. AIMB-740-B/741-B User’s Manual...
Page 73
When the following message appears, click "Finish" to complete the installation and restart Windows. Chapter 4...
Chapter 5 VGA Setup (for AIMB-740- 6CB1) 5.1 Introduction The AIMB-740-6CB1 has VGA onboard, you need to install the VGA driver to enable the function. The Intel® 845GV Graphics Memory Controller Hub (the 845GV GMCH) is Intel’s first memory controller hub with integrated graphics for the Intel Pentium®...
as Non-Local Video Memory (NLVM), and a highly efficient memory utilization scheme. DVMT ensures the most efficient use of available memory regardless of frame buffer or main memory sizing for maximum 2D/3D Graphics performance. DVMT dynamically responds to system requirements, and applications demands, by allocating the proper amount of display, texturing and buffer memory after the operating system has booted.
Page 78
installation procedure is for Windows XP. For other operating systems, please follow the on-screen installation guide Please click on "Next" to continue the installation AIMB-740-B/741-B User’s Manual...
Page 79
You will see a welcome window. Please chick on "Next" to con- tinue the installation. Click "Yes" when you see the following message. Chapter 5...
Page 80
Click on "Yes" to continue the installation Click "Finish" to complete the installation and restart the computer now or later. AIMB-740-B/741-B User’s Manual...
Page 81
When the following message appears, you can choose to restart the computer now or later. Chapter 5...
Chapter 6 LAN Configuration 6.1 Introduction The AIMB-740-6CB1 features the 32-bit 10/100/1000 Mbps Ethernet network interface. This interface supports bus mastering architecture and auto-negotiation features. Therefore standard twisted-pair cabling, with an RJ-45 connector for 10 Mbps and 100 Mbps connections, can be used.
CSI utility has been installed in your system. See Chapter 4 for information on installing the CSI utility. The AIMB-740-6CB1's onboard Ethernet interface supports all major network operating systems. However, the installation procedure varies with different operating systems. In the following sections, refer to the one that provides driver setup procedure for the operating system you are using.
Page 86
Select "Typical" and click "Next" to continue. Click "Install" to start the installation procedure. AIMB-740-B/741-B User’s Manual...
Page 87
Click "Finish" to complete the installation and show the results. Chapter 6...
Chapter 7 USB 2.0 Configuration 7.1 Introduction The AIMB-740-6CB1 is designed with Intel ICH4 which supports both USB1.1 and USB 2.0 high-speed transmission. It still remains the stan- dard with today's USB device. High-speed USB 2.0 provides data transfer up to 480Mb/s which is 40 times faster than USB 1.1. It is ideal for today's speed-demanding I/O peripherals.
Page 91
1. From Windows 2000, select Start and click on Setting. In the window of Setting, click on icon System. Choose the option "Hardware", and then click on "Device Man- ager" Chapter 7...
Page 92
In Device Manager, choose "USB Controller" and then double click. Choose the option "Driver" and then click on "Update Driver". AIM-740-B/741-B User’s Manual...
Page 93
In Upgrade Device Driver Wizard, click on "Next". In Upgrade Device Wizard, choose "search for a suitable device for my driver" and then click on " Next". Chapter 7...
Page 94
Tick "Specify a location" and click "Next" In the following windows, please specify the location "D:\Drv_USB\w2k" and then click on "OK". AIM-740-B/741-B User’s Manual...
Page 95
In the following window, please click on "Finish" to complete USB driver installation. Chapter 7...
Chapter 8 Ultra ATA Storage Driver Setup 8.1 Introduction This driver takes advantage of the latest Intel ® Ultra ATA controller fea- tures to improve both storage subsystem performance and overall system performance. A useful diagnostic tool, Intel Ultra ATA Companion®, shows technical information of the ATA subsystem.
Page 99
Click on "Next" when you see the following message. When you see the following message, click on "Yes" to accept the License Agreement. Chapter 8...
Page 100
Click on "Next" when you see the following message. Click on "Next" to continue. AIMB-740-B/741-B User’s Manual...
When the following message appears, click "Finish" to complete the installation and restart Windows. 8.4 Displaying Driver Information From the desktop of Windows, click on "Start" and select "Pro- grams." Then select "Intel Ultra ATA Storage Driver" and then "Companion." Chapter 8...
Page 102
Click on the "Device Parameters" or the "Storage Report" tab to view related information. AIMB-740-B/741-B User’s Manual...
W83627HF. Onboard security (OBS) functions monitor key hardware. They help you maintain your system's stability and durability. The AIMB-740-6CB1 can monitor 5 sets of system positive voltages, 2 sets of system negative voltages, CPU cooling fan speed, and CPU temperature.
Page 105
Click "Next" when you see the following message. Click "Next" when you see the following message. Chapter 9...
Page 106
Click "Next" when you see the following message. Click "Next" to continue. AIMB-740-B/741-B User’s Manual...
Click "Finish" when you see the following message. 9.3 Using the OBS Hardware Doctor Utility After completing the setup, all the OBS functions are permanently enabled. When a monitored reading exceeds safe limits, a warning mes- sage will be displayed and an error beep tone will activate to attract your attention.
Page 108
From the desktop of Windows, click on "Start" and select "Pro- grams", select "Winbond HWDoctor" and click "HWDOCTOR." It is recommended that you load the default values for all the OBS settings. However, if desired, you can establish new conditions for voltage, fan speed, and temperature.
Appendix A Programming the watchdog timer A.1 Programming the Watchdog Timer The AIMB-740-6CB1's watchdog timer can be used to monitor system software operation and take corrective action if the software fails to func- tion after the programmed period. This section describes the operation of the watchdog timer and how to program it.
Page 113
Unlock W83627H Select register of watchdog timer Enable the function of the watchdog timer Use the function of the watchdog time Lock W83627HF Appendix A...
Page 114
Watchdog Timer Registers Address of register (2E) Attribute Read/Write Value (2F) and description 87 (hex) ----- Write this address to I/O address port 2E (hex) twice to unlock theW83627HF 07 (hex) write Write 08 (hex) to select reg- ister of watchdog timer. 30 (hex) write Write 01 (hex) to enable...
Page 115
F7 (hex) read/write Bit 6: Write 1 to enable key- board to reset the timer, 0 to disable.[default] Bit 5: Write 1 to generate a timeout signal immediately and automatically return to 0. [default=0] Bit 4: Read status of watch- dog timer, 1 means timer is ""time out""."...
Page 116
;----------------------------------------------------------- Dec dx ; Set second as counting unit Mov al,0f5h Out dx,al al,dx And al,not 08h Out dx,al ;----------------------------------------------------------- Dec dx ; Set timeout interval as 10 seconds and Mov al,0f6h start counting Out dx,al Mov al,10 Out dx,al ;----------------------------------------------------------- Dec dx ;...
Page 117
;----------------------------------------------------------- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Mov al,01h Out dx,al ;----------------------------------------------------------- Dec dx ; Set minute as counting unit Mov al,0f5h Out dx,al al,dx Or al,08h Out dx,al ;----------------------------------------------------------- Dec dx ; Set timeout interval as 5 minutes and Mov al,0f6h start counting Out dx,al...
Page 118
Out dx,al ;----------------------------------------------------------- Mov al,07h ; Select registers of watchdog timer Out dx,al Mov al,08h Out dx,al ;----------------------------------------------------------- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Mov al,01h Out dx,al ;----------------------------------------------------------- Dec dx ; Enable watchdog timer to be reset by mouse Mov al,0f7h Out dx,al al,dx...
Page 119
Out dx,al ;----------------------------------------------------------- Mov al,07h ; Select registers of watchdog timer Out dx,al Mov al,08h Out dx,al ;----------------------------------------------------------- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Mov al,01h Out dx,al ;----------------------------------------------------------- Dec dx ; Enable watchdog timer to be strobed Mov al,0f7h reset by keyboard Out dx,al...
Page 120
Out dx,al ;----------------------------------------------------------- Mov al,07h ; Select registers of watchdog timer Out dx,al Mov al,08h Out dx,al ;----------------------------------------------------------- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Mov al,01h Out dx,al ;----------------------------------------------------------- Dec dx ; Generate a time-out signal Mov al,0f7h Out dx,al ;Write 1 to bit 5 of F7 register...
Appendix B Pin Assignments B.1 IDE Hard Drive connector (CN1, CN2) Table B.1: IDE hard drive connector (CN1, CN2) Signal Signal IDE RESET* DATA 7 DATA 8 DATA 6 DATA 9 DATA 5 DATA 10 DATA 4 DATA 11 DATA 3 DATA 12 DATA 2 DATA 13...
B.4 USB connector (CN6) Table B.4: USB1/USB2 connector (CN6) USB1 Signal USB2 Signal +5 V +5 V Chassis GND N/CA B.5 VGA connector (CN7) Table B.5: VGA connector (CN7) Signal Signal GREEN BLUE H-SYNC V-SYNC Appendix B...
B.9 CPU/System Fan Power connector (CN14/15/37) Table B.9: CPU/System Fan Power Conn (CN14/15/37) Signal +12V Detect B.10 Power LED (CN16) You can use an LED to indicate when the motherboard is on. Pin 1 of CN16 supplies the LED's power, and Pin 3 is the ground. Table B.10: Power LED and keylock conn (CN16) Function LED power (+5 V)
B.11 External Speaker connector (CN17) The motherboard has its own buzzer. You can also connect it to the exter- nal speaker on your computer chassis. Table B.11: External Speaker Connector (CN17) Function Buzzer Buzzer Speaker out B.12 Reset connector (CN18) Table B.12: Reset connector (CN18) Signal RESET...
B.13 HDD LED connector (CN19) Table B.13: HDD LED connector (CN19) Signal VCC (LED+) IDE LED (LED-) B.14 ATX Soft Power Switch (CN21)) Table B.14: ATX soft power switch (CN21) Signal 5VSB PWR-BTN AIMB-740-B/741-B User’s Manual...
B.17 USB ports (CN31 and CN32 Table B.17: USB port Signal Signal Data0+ Data0- B.18 LAN ports (CN31 and CN32 Table B.18: Ethernet 10/100Base-T RJ-45 port Signal Signal XMT+ XMT- RCV- RCV+ AIMB-740-B/741-B User’s Manual...
B.20 Line Out, Mic IN connector (CN55) B.21 Audio input from CD-ROM (CD IN; CN56) Table B.20: Audio in from CD-ROM (CD IN; CN56) Signal Signal CD_L CD_R AIMB-740-B/741-B User’s Manual...
B.26 Case Open connector (CN64; only AIMB-740- 6CB1) Table B.25: Case Open connector (CN64; only AIMB-740-6CB1) Signal CASEOP B.27 Front Panel LAN LED connector (CN65; only AIMB-740-6CB1) Table B.26: Front Panel LAN LED connector (CN65; only AIMB-740-6CB1) USB1 Signal USB2 Signal LAN1_LINK LAN2_LINK LAN1_ACT LAN2_LINK...
B.29 DMA Channel Assignments Table B.28: DMA channel assignments Channel Function Available Available Floppy disk (8-bit transfer) Available Cascade for DMA controller 1 Available Available Available B.30 Interrupt Assignments Table B.29: Interrupt assignments Priority Interrupt# Interrupt source Parity error detected IRQ0 Interval timer IRQ1...