Intel AIMB-744 manual

AIMB-744 Socket 478 Intel® Pentium® 4/Celeron® Industrial ATX Motherboard with PCI-X/DDR/ AGP/Dual GbE/800 MHz FSB User’s Manual[...]

AIMB-744 User’s Manual ii Copyright Notice This document is copyrighted, 2004, by Advan tech Co., Ltd. All rights are reserved. Advantech Co ., Ltd. reserves the right to make improve- ments to the products descri bed in this manual at any time withou t notice. No part of this m anual may be repro duced, copied, transl ated or transmit- ted in an[...]

iii 1.0.1 A Message to the Customer Advantech customer services Each and every Advantech pro duct is built to the most exacting specifica- tions to ensure reliable performance in the harsh and demanding condition s typical of industrial environ ments. Whether your new Advantech equipment is destined for the laboratory or the factory floor, you can [...]

AIMB-744 User’s Manual iv Table 1.1: AIMB-744 DDR memory compatibil ity table Memory_Compatibi lity_Test Brand Size Speed Type Memory Apacer 256MB DDR266 DDR infineon HYB25D25680BT-7(32x8) 512MB DDR333 DDR Samsung K4H560838C-TCB3(32x8) Transcend 256MB DDR333 DDR MOSEL VITELIC V58C2256804SAT6 512MB DDR333 DDR Samsung K4H560838C-TCB3(32x8) DSL 256M[...]

v 1.0.2 Product warranty Advantech warrants to yo u, the original purchaser, that each of its prod- ucts will be free from defects in material s and workmanshi p for two years from the date of purchase. This warranty does not apply t o any products which have b een repaired or altered by persons other than repair perso nnel authorized by Advantech,[...]

AIMB-744 User’s Manual vi Step 4. Carefully pack the defective product, a fully-complete d Repair and Replacement Order Card and a photocopy proof of purchase date (such as your sales receipt) in a shippable container. A prod- uct returned without proof of t he purchase date is not elig ible for warranty service. Step 5. Write the RMA number visi[...]

vii Contents Chapter 1 Hardware Co nfiguration ................................. 2 1.1 Introduction ............ ............................ ............ ........... ........ 2 1.2 Features ............. .............. .............. .............. .............. ........ 3 1.3 Specifications ............ .............. .............. ............[...]

AIMB-744 User’s Manual viii 2.5 USB Ports (CN6/CN63) ................... .............. ................. 20 2.6 VGA Connector (CN7) .................... .............. .............. ... 20 2.7 Serial Ports (COM1 : CN9; COM2 : CN10 ) ......... ......... 21 2.8 PS/2 Keyboard and Mouse Co nn (CN11) ................. ...... 21 2.9 External Keyboard[...]

ix 3.4.8 Swap Floppy Drive ... ........... ............ ...................... ...... 35 3.4.9 Boot UP Floppy Seek ... ................................. ......... ...... 35 3.4.10 Boot Up NumLock Stat us ................. ........... ............. .... 35 3.4.11 Gate A20 Opti on .... ........... ........... .............. ........... ........ 35 3.[...]

AIMB-744 User’s Manual x 3.6.14 Onboard Serial Port 2 ........... ............ ...................... ...... 42 3.6.15 UART Mode Sele ct ................. ........... ........... ........... .... 42 3.6.16 RxD, TxD Active ............ ........... ........... ............. ........... 42 3.6.17 IR Transmis sion Delay . ........... ........... ....[...]

xi 3.11 Password Setting .......... .............. .............. .............. ......... 48 3.12 Save & Exit Setup ............. ................. .............. ............... 49 3.13 Exit Without Saving ................... ................. .............. ...... 49 Chapter 4 Chipset Software Install Utility..................... 52 4.1 Befo[...]

AIMB-744 User’s Manual xii B.8 External Keyboard Connector (CN12)......................... ... 93 Table B.8:External keyboard connector (CN12) ........ .. 93 B.9 CPU/System Fan Power C onn (CN14/15/37) ................. 94 Table B.9:CPU/Syst em Fan Power Conn (CN14/15/37).. 94 B.10 Power LED (CN16) ................. ................. ............[...]

xiii Table B.29:1st M B memory map ........... .............. ...... 104 B.30 PCI Bus Map ................ .............. ................. .............. .... 105 Table B.30:PCI bus map (for VE, E2 vers ion) ....... .... 105 Table B.31:PCI bus map (for VG, G2 version) ........ .. 105[...]

AIMB-744 User’s Manual xiv[...]

1 CHAPTER 1 General Information[...]

AIMB-744 User’s Manual 2 Chapter 1 Hardware Configuration 1.1 Introduction Advantech's AIMB-744 series i ndustri al motherboard is designed based on the standard ATX form factor with additional industrial features such as long product life, high reliability and m anageability. It is flexible to be installed in a commercia l PC chassis or in [...]

3 1.2 Features 1. Standard ATX form factor with industrial features: AIMB-744 provides industrial features like l ong produ ct life, reliable operation under wide temperature ran ge, watchdog timer, CMOS backup functions, etc. 2. PCI-X and PCI bus support: AIMB-744 equips with two 64-bit PCI-X (66MHz) slots and 4 32-bit PCI slots , providing the hi[...]

AIMB-744 User’s Manual 4 drives or fou r enhanced IDE devi ces. Supports PIO mode 4 (16. 67MB/s data transfer rate) and ATA 33/66/100 (33/6 6/100MB/s data tran sfer rate.) BIOS enab led/disabled. • Floppy disk drive interface: Supports up to two floppy disk drives, 5¼" (360 KB and 1.2 MB) and/or 3½" (720 KB, 1.44 MB). BIOS enabled/d[...]

5 1.3.6 Industrial features • Watchdog timer: Can generate a system reset or IRQ11. Th e watch- dog timer is programmable, with each unit equal to one second or one minute (255 levels) 1.3.7 Mechanical and environmental specifica tions • Operating temperature: 0°~60° C (32° ~ 14 0° F, Depending on CPU) • Storage temperature: -20°~ 70° C[...]

AIMB-744 User’s Manual 6 Table 1.2: Connectors Label Function CN1 Primary IDE connector CN2 Secondary IDE connector CN3 Floppy drive connector CN4 Parallel port CN6 USB port 4, 5 (shared with CN32) CN9 Serial port: COM1 CN10 Serial port connector: COM3 CN11 PS/2 keyboard and mo use connector CN12 External keyboard connector CN14 CPU FAN connector[...]

7 CN62 8-pin Alarm Board Connector CN64 Case Open SA0 Serial ATA 0 SA1 Serial ATA 1 ATX1 ATX 12V Auxiliary power connector ATX2 ATX power connector Table 1.2: Connectors[...]

AIMB-744 User’s Manual 8 1.5 Board Layout: Jumper and Connector Locations Figure 1.1: Jumper and Connector locations Figure 1.2: I/O Connecto rs CN59 PCI-X 2 PCI- X1 PCI4 PCI3 PCI2 PCI1 AGP1 CN32 CN31 CN55 CN15 CN57 CN 38 CN 9 CN4 CN11 CN56 ATX2 AT X1 J5 J6 J5 CN6 J1 CN3 CN10 CN12 SA0 S A1 CN2 CN1 CN37 DIMM1 DIMM2 DIMM3 DIMM4 CN14 CN64 CN62 J2 CN[...]

9 1.6 AIMB-744 Block Diagram Figure 1.3: AIMB-744 Block Diagram I n t el 8 2875P 2A T A 1 0 0 po r t s 2 SATA p o r t s 4U S B P o r t s Pr o c e s s o r G- L AN1 : 82 54 7 G I D D R 266 / 333 / 400 D D R 266 / 333 / 400 D D R 266 / 333 / 400 D D R 266 / 333 / 400 A udi o C odec BI OS Su p e r I O Winb on d W836 27 H F Hu b L i n k 1 . 5 266 M B/ s[...]

AIMB-744 User’s Manual 10 1.7 Safety Precautions Warning! Always completely disconnect the power cord from your chassis whenever you work with the hardware. Do not make conne ctions while the power is on. Sensitive electronic compon ents can be damaged by sudden power surges. On ly experience d electronics personne l should open the PC chassis. C[...]

11 This device complies with th e requiremen ts in part 15 of the FCC rules: Operat ion is subject to the fol- lowing two conditions: 1.This device may n ot cause harmful interf erence, and 2.This device must accept any interfer ence received, including interference that may cause undesired operation This equipment has been tested and foun d to com[...]

AIMB-744 User’s Manual 12 1.8 Jumper Setti ngs This section provides i nstructions on how to configu re your motherboard by setting the jumpers. It also includes the motherboards's de fault settings and your options for each jumper. 1.8.1 How to set jumpers You can configure your motherboard to match the needs of your applica- tion by settin[...]

13 problem. Th e J2 jumper set tings c ontrol the outcome of what the com- puter will do in the event the watchd og timer is tripped. 1.8.4 PCI-X 33/66Mhz selection (J5 & J6) The AIMB-744 contains a PCI-X 33/66Mhz selection that enables the PCI-X slots different modes. The default mod e is PCI 33MHz which close both J5 and J6. While close J6 on[...]

AIMB-744 User’s Manual 14 1.8.5 PCI-X slots 3.3V/5V selection (J8) The AIMB-744 cont ains a PCI-X 3.3V/5V selection that provide the u ser to select the operation voltage either 3.3V or 5V. The defau lt setting is 3.3V whic h close pin1 and pin2. By closing pi n2 and pin3, the operatio n voltage change to 5V. 1.9 System Memory The AIMB-74 4 has f[...]

15 The AIMB-744 does not suppo rt ECC (error checking and correctio n). Memory modules with 9 SDRAM ch ips/side support ECC; modules w ith 8 chips/si de do not supp ort ECC. 1.9.2 Dual channel configuration The four DIMM sockets are arra nged in two channels: DIMM1 & DIMM2 in channel A; DI MM3 & DIMM4 in channel B. To enable dual channel op[...]

AIMB-744 User’s Manual 16 1.11 Cache Memory Since the second-level (L2) cache has been embedded into the Intel® socket 478 Pentium® 4/Celero n™ processor, you do not have to take care of either SRAM chips or SRAM modules. The built-in second-level cache in the processor yields much hi gher performance than the external cache memories. The cac[...]

17 Chapter 2 CHAPTER 2 Connecting Peripherals[...]

AIMB-744 User’s Manual 18 Chapter 2 Connecting Peripherals 2.1 Introduction You can access most of the connectors from the top of th e board while it is installed in the chassis. If you have a number of cards installed or have a packed chassis, you may need to partially remove the card to make a ll the connections. 2.2 Primary (CN1) and Secondary[...]

19 Chapter 2 Connect the second hard drive to th e remaining connector (CN2 or CN1), in the same way as described above. The secondary IDE shares the same resource with CF (CompactFlash) sock et. CF card is only available for master mode. While setting CF as master, the other IDE device con- nected to secondary IDE can work as a slave device only a[...]

AIMB-744 User’s Manual 20 2.5 USB Ports (CN6 ; shared with CN32) The AIMB-744 provides up to four port s of USB (Universal Serial Bus) interface, which gives complete Plug & Play and hot swapping for up to 127 external devices.The USB interf ace complies with USB Specification Rev. 2.0 support transmission rate up to 480 Mbps and is fuse-pro [...]

21 Chapter 2 Different devices implement the RS-232 standa rd in different ways. If you are having problems with a serial device, be su re to check the pin assignments for the connector. 2.7 PS/2 Keyboard and Mouse Conn (CN11) Two 6-pin mini-DIN connectors (CN11) o n the motherboard pro vide connection to a PS/2 keyboard and a PS/2 mouse, respectiv[...]

AIMB-744 User’s Manual 22 2.9 CPU Fan Connector (CN14) If fan is used, this connector su pports cooling fans o f 500mA (6W) or less. 2.10 System FAN conn ector (CN15 and CN37) If fan is used, this connector supports cooli ng fans of 500mA (6W) or less. 2.11 Front Panel Connectors (CN16, 17, 18, 19, 21&29) There are several external switches t[...]

23 Chapter 2 CN16 is a 5-pin connector for the p ower on LED. Refer to Appendix B for detailed information on the pin assig nments. If a PS/2 or ATX power supply is used, the system 's power LED status w ill be as indicated below: Table 2.1: PS/2 or ATX powe r supply LED status Power mode LED (PS/2 power) LED (ATX power) System On On On System[...]

AIMB-744 User’s Manual 24 2.11.6 SM Bus Connector (CN29) This connector is reserved for Advantech's SNMP-1000 HTTP/SNMP Remote System Manager. The SNMP-1000 allows users to monit or the internal voltages, temperature and fans from a remote comp uter through an Ethernet networ k. CN29 can be connected to CN19 of SN MP-1000. Please be careful [...]

25 Chapter 2 The AIMB-744 is equipped with one or two high-performance 10 /100/ 1000 Mbps Ethernet LANs. They are support ed by all major network operating systems. The RJ -45 jacks on the rear plate provide convenient or 10/100/1000 Base-T operation . 2.14 Line Out, Mic IN connector (CN55) The Line Out is to output the audio signal to external aud[...]

AIMB-744 User’s Manual 26 2.16 Aux Line-In connector (AUX IN; CN57) The connector is for audio de vice with Line-in connector. 2.17 Front Panel audio c onnector (FP AUDIO; CN59) The FPAUDIO is a front panel audio connect or compliant with Intel® Front Panel I/O Connectivity Design Guid e. To direct the audio signal output to th e rear audio port[...]

27 Chapter 2 2.18 8-pin Alarm Board Connector (CN62) The 8-pin alarm board co nnector is for Advantech chassis with alarm board. 2.19 Case Open Connector (CN64) The 2-pin case open connect or is for chassis with case open censor. While opening the case, the buzzer on motherboard will ring. 2.20 Serial ATA interface (SA0 and SA1) In addition to the [...]

AIMB-744 User’s Manual 28 which eases cabling to hard drives with th in and long cables. 2.21 Connecting to SNMP -1000 remote manager Use the 6 -pin to 8-pin cable t o connect the mot herboard to SN MP-1000. This cable comes wi th the SNMP-100 0. 2.22 Auxiliary 4-pin power connector (ATX1) To ensure the sufficiency of power supply fo r Pentium® [...]

29 Chapter 3 CHAPTER 3 Award BIOS Setup[...]

AIMB-744 User’s Manual 30 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 configu ration. This type of inform ation is stored in battery-backed memory (CMOS RAM) so that it retains th e setup information when th e power is turned o ff. 3.1.1 CMOS RAM Auto-bac[...]

31 Chapter 3 3.2 Entering Setup Turn on the comput er and press <Del> to allo w you to enter the BIOS setup. 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 dat e, time, hard di[...]

AIMB-744 User’s Manual 32 3.4 Advanced BIOS Features The “Advanced BIOS Features” scr een appears when choosing the “Advanced BIOS Features” item from th e “Initial Setup Screen” menu. It allows the user to configure the AIMB-744 according to his particular requirements. Below are some majo r items that are provided in the Advanced BI[...]

33 Chapter 3 3.4.5 Quick Power On Self Test Allows the sy stem to skip certain tests while bo oting. This will decrease the time needed to boot the system. 3.4.6 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&q[...]

AIMB-744 User’s Manual 34 3.4.15 Security Option Select whether the password is required every time the system bo ots 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 p rompt. "Setup" The system will boot, but a ccess to Setup will[...]

35 Chapter 3 3.5.1 DRAM Timing Selectable This item allows you to cont rol 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 av ailable. Leave this on the default setting. The options are "2"[...]

AIMB-744 User’s Manual 36 3.5.7 System BIOS Cacheable Selecting Enabled allows caching of the system BIOS ROM at F0000h- FFFFFh, resulting in better system performance. Howev er, if any pro- gram writes to this memory area, a system error may occur. The Choices: "Enabled", "Disabled". 3.5.8 Video Bios Cacheable Selecting Enabl[...]

37 Chapter 3 3.6 Integrated Peripherals Figure 3.5: Integrated peripherals Figure 3.6: On-Chip IDE Device[...]

AIMB-744 User’s Manual 38 3.6.1 IDE HDD Block Mode If your IDE hard drive supports bl ock mode select Enabled for automatic detection of the optimal number of bl ock read/writes per sector the drive can support. 3.6.2 On-Chip IDE Device IDE Primary (Secondary) Master/Slave PIO/UDMA Mode (Auto) Each channel (Primary and Secondary) has both a maste[...]

39 Chapter 3 3.6.5 USB Controller Select Enabled if your system contains a Universal Serial Bus (USB) con- troller and you have USB peripherals. The choices: "Enabled", "Dis- abled". 3.6.6 USB 2.0 Controller This entry is for disable/enable USB2 .0 controller only. The BIOS itself may/may not have high speed USB support. If the [...]

AIMB-744 User’s Manual 40 3.6.12 Onboard FDC Cont roller When enabled, this field allo ws you to connect your floppy d isk drives to the onboard floppy disk drive connector instead of a separate controller card. If you want to use a different controller card to connect the floppy disk drives, set this field to Disabled. 3.6.13 Onboard Seri al Por[...]

41 Chapter 3 This field allows you to select EPP port type 1.7 or 1.9. The choices: "EPP1.9", "EPP1.7". 3.6.22 ECP Mode Use DMA This selection is available only if yo u select “ECP” or “ECP + EPP” in the Parallel Port Mode field. In ECP Mode Use DMA, you can select DMA channel 1, or DMA ch annel 3. Leave this field on th[...]

AIMB-744 User’s Manual 42 The Choice : "S1(POS)", and "S3(STR)". While se lecting "S3(STR)", the "Run VGABIOS if S3 Resume" and "Resume on USB from S3" will be active for selection. 3.7.3 Power Management This category allows you to select the type (or degree) of power saving and is directly relat[...]

43 Chapter 3 This field allows you to select the CPU THR M-Throttling rate. The choices: "75.0%", "5 0.0%", and "25. 0%". 3.7.10 Resume on LAN/PCI PME# To enabled or disable the function to resume the system by PCI card or LAN. The Choice : "Enabled", "Disabled". 3.7.11 Resume on Ri ng This item all[...]

AIMB-744 User’s Manual 44 3.8.1 Reset Configuration Data Default is Disable. Select Enable to reset Extend ed System Configuration Data (ESCD) if you have inst alled a new add-on and system configura- tion has caused such a conflict that OS cannot boot. 3.8.2 Resources Controlled By The commands here are "A uto(ESCD)" or “Manual.” C[...]

45 Chapter 3 3.9.4 Current CPUFAN Speed This shows you the curren t CPUFAN operating speed. 3.9.5 VCORE, +1.5V, VCC3, +5V, +12V, -12V, -5V, VBAT(V), 5VSB(V) This shows you the voltage o f VCORE, +1.5V, VCC3, +5V, +12V, -12V, -5V, VBAT(V), and 5VSB(V). 3.10 Spread Spectrum Control Figure 3.12: Spread Spe ctrum Co ntrol scree n 3.10.1 CPU Clock Ratio[...]

AIMB-744 User’s Manual 46 Press <Enter>. 2. If the CMOS is good or if this option has been used to change the default passw ord, the user is asked for the password stored in the CMOS. The screen will display th e following message: Enter the current passw or d and press <Enter>. 3. After pressing <Enter> (ROM password) or the cu[...]

47 Chapter 4 CHAPTER 4 Chipset Software Installation Utility[...]

AIMB-744 User’s Manual 48 Chapter 4 Chipset Software Install Utility 4.1 Before you begin To facilitate the installation of the enhanced display device drivers and utility software, you shoul d read the instructions in this chapter carefully before you attempt installatio n. The device drivers for the AIMB-744 board are located on the software in[...]

49 Chapter 4 • Identification of Intel ® chipset compon ents in the Device Manager. • Integrates superior video features. These include filtered sealing of 720 pixel DVD cont ent, and MPEG-2 motion co mpensation for soft- ware DVD Windows 98SE Windows 2000 Windows Me Windows XP 4.3 Windows XP Driver Setup 1. Insert the driver CD into your syst[...]

AIMB-744 User’s Manual 50 2. Click "Next" when you see the following message. 3. Click "Yes" when you see the following message.[...]

51 Chapter 4 4. Click "Next" when you see the following message. 5. When the following message appear s, click "Finish" to complete the installation an d restart Windows.[...]

AIMB-744 User’s Manual 52[...]

53 Chapter 5 CHAPTER 5 LAN Configuration[...]

AIMB-744 User’s Manual 54 Chapter 5 LAN Configuration 5.1 Introduction The AIMB-744 features the 32-bit 10/ 100/1000 Mbps Ethernet network interface. This interface supports bus mastering archit ecture and auto- negotiation features. Therefore standard twisted-p air cabling with RJ-45 connectors for 10 Mbps, 100 Mbps and 1000 Mbps connections can[...]

55 Chapter 5 5.3 Installation The AIMB-744's onboard Ethernet interface supports all major network operating systems. However, the installation proced ure varies with differ- ent operating systems. In the following sections, refer to the one that pro- vides driver setup procedure for the operating system you are using. 5.4 Win XP Driver Setup [...]

AIMB-744 User’s Manual 56 2. Select "I accept the terms in th e license agre ement" and click "Next" to continue. 3. Click "Next" to continue.[...]

57 Chapter 5 4. Click "Install Soft ware" to start the installation procedure. 5. The driver will be installed au t omatically and the LAN function will be enabled after the installation.[...]

AIMB-744 User’s Manual 58[...]

59 Chapter 6 CHAPTER 6 Onboard Security Setup[...]

AIMB-744 User’s Manual 60 Chapter 6 Onboard Security Setup 6.1 Introduction The AIMB-744's hardw are monitor i s designed with Winbon d W83782D. Onboard security (OBS) fun ctions monitor key hardware. They help yo u maintain your system's stabi lity and durability. The AIMB-744 can moni- tor 5 sets of system positive voltages, 2 sets of[...]

61 Chapter 6 6.2 Windows XP Driver Setup 1. Insert the driver CD into your syst em's CD-ROM drive. In a few seconds, the software installation main menu appears, as shown in the following figure. Click on the "Ins tall" button under the "OBS DRIVERS" heading. 2. Click "Next" when you see the following message.[...]

AIMB-744 User’s Manual 62 3. Click "Next" when you see the following message. 4. Click "Next" when you see the following message.[...]

63 Chapter 6 5. Click "Next" to continue. 6. Click "Finish" when you see the following message.[...]

AIMB-744 User’s Manual 64 6.3 Using the OBS Hardwa re Doctor Utility After completing the setup, all th e OBS functions are permanently enabled. When a monitored reading exceeds safe limits, a warning mes- sage will be displayed and an error b eep tone will activate to attract your attention. OBS Hardware Doctor will show an icon on the right sid[...]

65 Chapter 6[...]

AIMB-744 User’s Manual 66[...]

67 Appendix A Appendix A Programming the Watchdog Timer[...]

AIMB-744 User’s Manual 68 Appendix A Programming the watchdog timer A.1 Programming the Watchdog Timer The AIMB-744's watchdo g timer can be used to moni tor system software operation and take correc tive action if the software fails to functio n after the programmed period. This section descri bes the operation of the watchdog timer and how[...]

69 Appendix A Unlock W83627H Select register of watchdog timer Enable the function of the watchdog timer Use the function of the watchdog time r Lock W83627HF[...]

AIMB-744 User’s Manual 70 Watchdog Timer Registe rs Address of regis ter (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 the function of the w[...]

71 Appendix A Table A.1: Watchdog timer registers A.1.4 Example Program 1. Enable watchdog timer and set 10 sec. as timeout interval ;-------- --------- ----------- ---------- --------- ---------- -- Mov dx,2eh ; Unlock W83627HF Mov al,87h Out dx,al Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Mov al,07h ; Select reg[...]

AIMB-744 User’s Manual 72 ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Set second as counting unit Mov al,0f5h Out dx,al Inc dx In al,dx And al,not 08h Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Set time out interval as 10 seconds and start counting Mov al,0f6h Out dx,al In[...]

73 Appendix A ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Inc dx Mov al,01h Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Set minute as counting unit Mov al,0f5h Out dx,al Inc dx In al,dx Or al,08h Out dx,al ;-------- -[...]

AIMB-744 User’s Manual 74 Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Mov al,07h ; Select registers of watchdog timer Out dx,al Inc dx Mov al,08h Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Inc dx Mov al,01h Out dx[...]

75 Appendix A Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Mov al,07h ; Select registers of watchdog timer Out dx,al Inc dx Mov al,08h Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Inc dx Mov al,01h Out dx,al ;-------- [...]

AIMB-744 User’s Manual 76 Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Mov al,07h ; Select registers of watchdog timer Out dx,al Inc dx Mov al,08h Out dx,al ;-------- --------- ----------- ---------- --------- ---------- -- Dec dx ; Enable the function of watchdog timer Mov al,30h Out dx,al Inc dx Mov al,01h Out dx[...]

77 Appendix B Appendix B I/O Pin Assignments[...]

AIMB-744 User’s Manual 78 Appendix B Pin Assignments B.1 IDE Hard Drive Connector (CN1, CN2) Table B.1: IDE hard drive connector (CN1, CN2) Pin Signal Pin Signal 1 IDE RESET* 2 GND 3D A T A 7 4 D A T A 8 5D A T A 6 6 D A T A 9 7D A T A 5 8 D A T A 1 0 9 DATA 4 10 DATA 11 11 DATA 3 12 DATA 12 13 DATA 2 14 DATA 13 15 DATA 1 16 DATA 14 17 DATA 0 18 [...]

79 Appendix B B.2 Floppy Drive Connector (CN3) Table B.2: Flop py dr ive connector (CN3) Pin Signal Pin Signal 1 GND 2 FDHDIN* 3G N D 4 N / C 5 N/C 6 FDEDIN* 7 GND 8 INDEX* 9 GND 10 MOTOR 0* 11 GND 12 DRIVE SELECT 1* 13 GND 14 DRIVE SELECT 0* 15 GND 16 MOT OR 1* 17 GND 18 DIRECTION* 19 GND 20 STEP* 21 GND 22 WRITE DATA* 23 GND 24 WRITE GATE* 25 GND[...]

AIMB-744 User’s Manual 80 B.3 Parallel Port Connector (CN4) Table B.3: Parallel port connector (CN4) Pin Signal Pin Signal 1 STROBE* 14 AUTOFD* 2D 0 1 5E R R 3D 1 1 6I N I T * 4D 2 1 7 S L C T I N I * 5D 3 1 8 G N D 6D 4 1 9 G N D 7D 5 2 0 G N D 8D 6 2 1 G N D 9D 7 2 2 G N D 10 ACK* 23 GND 11 BUSY 24 GND 12 PE 25 GND 13 SLCT 26 N/C * low active 1[...]

81 Appendix B B.4 USB Connector (C N6; shared with CN32) B.5 COM1/2/3/4 RS-232 Se rial Port Interface (CN9/10/ 23/38) Table B.4: USB1/USB2 connector (CN6; shared with CN32) Pin USB1 Signal Pin U SB2 Signal 1+ 5 V 6 + 5 V 2 UV- 7 UV- 3 UV+ 8 UV+ 4G N D 9 G N D 5 Chassis GND 10 N /CA Table B.5: COM1/2 RS-232 serial port (CN9/38) Pin Signal 1 DCD 2R X[...]

AIMB-744 User’s Manual 82 B.6 Keyboard and Mouse Connnecto r (CN11) B.7 COM3/4 serial po rt connector ( CN10/23) 9R I Table B.6: Keyboard and mous e connector (CN11) Pin Signal 1 KB DATA 2N / C 3G N D 4 KB VCC 5 KB CLK 6 N / C Table B.7: COM3/4 serial port connector ( CN10/23) Pin Signal 1D C D 2D S R 3R X D 4R T S 5T X D 6C T S 7D T R[...]

83 Appendix B B.8 External Keyboard Connector (CN12) B.9 CPU/System Fan Power Conn (CN14/15/37) 8R I 9G N D Table B.8: External keyboard connecto r (CN12) Pin Signal 1C L K 2D A T A 3N C 4G N D 5 VCC Table B.9: CPU/System Fa n Power Conn (CN14/15/37 ) Pin Signal 1 GND 2 +12V 3 Detec t[...]

AIMB-744 User’s Manual 84 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. 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.10: Power LE[...]

85 Appendix B B.12 Reset C onnector (CN18) B.13 HDD LED Connector (CN19) Table B.12: Reset connector (CN18) Pin Signal 1 RESET 2G N D Table B.13: HDD LED connector (CN19) Pin Signal 1V C C ( L E D + ) 2 IDE LED (LED-) 1 1[...]

AIMB-744 User’s Manual 86 B.14 ATX Soft Po wer Switch (CN21) Table B.14: ATX soft power switch (CN21) Pin Signal 15 V S B 2P W R - B T N 1[...]

87 Appendix B B.15 H/W Monitor Alarm (CN22) B.16 SM Bus Connector (CN29) B.17 USB/LAN ports (CN31 and CN32) Table B.15: H/W monitor alarm (CN22) Pin Signal 1 Enable OBS alarm 2 Disable OBS alarm Table B.16: SM Bus Connector (CN 29) Pin Signal 1S M B _ D A T A 2S M B _ C L K Table B.17: USB port Pin Signal Pin Signal 1 VCC 3 Data0+ 2 Data0- 4 GND 1 [...]

AIMB-744 User’s Manual 88 B.18 Line Out, Mic IN connector (CN55) B.19 Audio input from CD-ROM (CD IN; CN56) Table B.18: Ethernet 10 /100Ba se-T RJ-45 port Pin Signal Pin Signal 1X M T + 5 N / C 2 XMT- 6 RCV- 3R C V + 7 N / C 4 N/C 8 N/C Table B.19: Audio i n fr om CD-ROM (C D IN; CN56) Pin Signal Pin Signal 1C D _ L 3 G N D 2G N D 4 C D _ R Line [...]

89 Appendix B B.20 Aux Line-In c onnector (AUX IN; CN57) B.21 Front Panel audio connector (FP AUDIO; CN59) Table B.20: Aux Line-In connector (AUX IN ; CN57) Pin Signal Pin Signal 1A U X _ L 3 G N D 2 GND 4 AUX_R Table B.21: Fro nt audio conn (FP AUDIO; CN59) Pin Signal Pin Signal 1 MIC 6 LOUT_RR 2G N D 7 N C 3 MIC_BIAS 8 NC 4V C C 9 L O U T _ L 5 L[...]

AIMB-744 User’s Manual 90 B.22 Case Open Connector (CN64) B.23 8-pin Alarm Bo ard Connector (CN62) Table B.22: Case Open Connector (CN64) Pin Signal 1 CASEOP 2G N D Table B.23: 8-pin Alarm Board Connecto r (CN62) Pin Signal Pin Signal 1 5VSB 5 VCC 2 GND 6 VCC3 3 GND 7 -12V 4- 5 V 8 + 1 2 V[...]

91 Appendix B B.24 System I/O Ports Table B.24: System I/O ports Addr. rang e (Hex) D evice 000-01F DMA controller 020-021 Interrupt controller 1, master 022-023 Chipset address 040-05F 8254 timer 060-06F 8042 (keyboard controller) 070-07F Real-time clock, non-maskable interrupt (NMI) mask 080-09F DMA page register 0A0-0BF Interrupt controller 2 0C[...]

AIMB-744 User’s Manual 92 B.25 DMA Channel Assignments B.26 Interrupt Assignments Table B.25: DMA channel assignments Channel Functio n 0 Available 1 Available 2 Floppy disk (8-bit transfer) 3 Available 4 Cascade for DMA controller 1 5 Available 6 Available 7 Available Table B.26: Interrupt assignments Priority Interrupt# Interrupt sour ce 1 NMI [...]

93 Appendix B B.27 1st MB Memory Map B.28 PCI Bus Map B.29 PCI-X bus map Table B.27: 1st MB memory map Addr. range (Hex) Device E0000h - FFFFFh BIOS CC000h - DFFFFh Unused C0000h - CBFFFh VGA BIOS A0000h - BFFFFh Video Memory 00000h - 9FFF Fh Base memory Table B.28: PCI bus map (for VG, G2 version) Function Signals: Device ID INT# pin GNT REQ Onboa[...]

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