Related Manuals for AOpen MX4B
Summary of Contents for AOpen MX4B
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Page 1: W H A T S I N T H I S M A N U A L Mx4B
MX4B DOC. NO.: MX4B-OL-E0112B... -
Page 2: Table Of Contents
’ ’ MX4B ..............................1 What’s in this manual ..............................2 You Must Notice ................................8 Before You Start ................................9 Overview ..................................10 Feature Highlight ................................11 Quick Installation Procedure............................14 Motherboard Map ................................15 Block Diagram ................................16 Hardware Installation ........................17 About “Optional” and “Upgrade Optional”… ........................18 JP14 Clear CMOS Data ..............................19... - Page 3 AC Power Auto Recovery ..............................30 IDE and Floppy Connector ............................31 IrDA Connector ................................33 AGP (Accelerated Graphic Port) Expansion Slot ......................34 Support 10/100 Mbps LAN onboard (Optional) ......................35 CNR (Communication and Network Riser) Expansion Slot ....................36 PC99 Color Coded Back Panel............................37 Support 2 USB Port..............................38 CD Audio Connector ..............................39...
- Page 4 Auto-run Menu from Bonus CD Disc ..........................51 Installing Intel® Chipset Software Installation Utility ......................52 Installing Intel IAA Driver ...............................53 Installing LAN Driver (Optional) .............................54 Installing Onboard Sound Driver............................55 ACPI Suspend to Hard Drive ............................56 ACPI Suspend to RAM (STR) ............................61 AWARD BIOS ...........................
- Page 5 AOpen Bonus Pack CD ..............................73 APM (Advanced Power Management) ...........................73 ATA (AT Attachment)..............................73 ATA/66 ...................................73 ATA/100 ..................................74 BIOS (Basic Input/Output System) ..........................74 Bus Master IDE (DMA mode)............................74 CNR (Communication and Networking Riser) ........................74 CODEC (Coding and Decoding) ............................75 DDR (Double Data Rated) SDRAM..........................75 DIMM (Dual In Line Memory Module) ..........................75...
- Page 6 Flash ROM ..................................77 FSB (Front Side Bus) Clock............................78 C Bus ..................................78 IEEE 1394 ..................................78 Parity Bit..................................78 PBSRAM (Pipelined Burst SRAM) ..........................79 PC-100 DIMM ................................79 PC-133 DIMM ................................79 PC-1600 or PC-2100 DDR DRAM ..........................79 PCI (Peripheral Component Interface) Bus........................79 PDF Format ...................................80 PnP (Plug and Play) ..............................80 POST (Power-On Self Test) ............................80 RDRAM (Rambus DRAM)..............................80...
- Page 7 SPD (Serial Presence Detect) ............................82 Ultra DMA ..................................82 USB (Universal Serial Bus)............................83 VCM (Virtual Channel Memory) .............................83 ZIP file ...................................83 Troubleshooting ..........................84 Technical Support........................... 88 Product Registration........................91 How to Contact Us.......................... 92...
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Page 8: You Must Notice
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right to revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that may appear in this manual, including the products and software described in it. -
Page 9: Before You Start
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later chapters. Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved in format, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc... -
Page 10: Overview
Socket 478 motherboard (M/B) based on the Micro ATX ® form factor featuring the Intel 845 (Brookdale) chipset. As high performance chipset built in the M/B, the MX4B motherboard can ® ® support Intel Socket 478 Pentium 4 (Willamette / Northwood) and 400 MHz Front Side Bus (FSB) clock. -
Page 11: Feature Highlight
1056MB/s. MX4B motherboard includes one AGP expansion slot for a bus mastering AGP graphic card. For AD and SBA signaling, MX4B motherboard can support 4X mode. Of three PCI slots provided, all of them are... - Page 12 33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices. On-board AC’97 Sound MX4B uses the RealTek ALC201 AC97 sound chip. This on-board audio includes a complete audio recording and playback system.
- Page 13 Power Management/Plug and Play Supports the power management function that confirms to the power-saving standards of the U.S. Environmental Protection Agency (EPA) Energy Star program. It also offers Plug-and-Play, which helps save users from configuration problems, thus making the system much user-friendlier. Hardware Monitoring Management Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor module.
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Page 14: Quick Installation Procedure
This page gives you a quick procedure on how to install your system. Follow each step accordingly. Installing CPU and Fan Installing System Memory (DIMM Connecting Front Panel Cable Connecting IDE and Floppy Cable Connecting ATX Power Cable Connecting Back Panel Cable Power-on and Load BIOS Setup Default Setting CPU Frequency Reboot... -
Page 15: Motherboard Map
Motherboard Map Intel 82562ET PHY Onboard IrDA Connector Red: MODEM-CN Connector PC99 Colored Back Panel Black: CD-IN Connector 2Mbit Programmable Flash ROM Resettable Fuse RealTek ALC201 AC’97 CODEC Front Audio Connector 32-bit PCI Expansion Slot x3 CNR Expansion Slot FAN2 Connector 2200μF Low ESR Capacitors AGP 4x Expansion Slot 4-pin 12V. -
Page 16: Block Diagram
PC-200/266 DDR SDRAM Up to 2GB 32-bit PCI Slot x3 DIMM Socket x2 Socket 478 400MHz System Intel Pentium 4 Intel 82845 PCI Bus (Brookdale) Primary 33/66100 Channel IDE Drive x4 Secondary AGP 4X Slot Channel Intel RealTek 82801BA ALC201 ICH2 Intel 82562ET... -
Page 17: Hardware Installation
This chapter describes jumpers, connectors and hardware devices of this motherboard. Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and other components. Always observe the following precautions before you install a system component. Do not remove a component from its protective packaging until you are ready to install it. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a component. -
Page 18: About "Optional" And "Upgrade Optional
When you read this online manual and start to assemble your computer system, you may find some of functions are called “Optional”, and some are called “Upgrade Optional”. Though all AOpen motherboards include many amazing and powerful features, in some situations, these powerful features are not used to every user. Hence, we changed some key features as “Optional” for you to choose. -
Page 19: Jp14 Clear Cmos Data
You can clear CMOS to restore system default setting. To clear the CMOS, follow the procedure below. Turn off the system and unplug the AC power. Remove ATX power cable from connector PWR2. Locate JP14 and short pins 2-3 for a few seconds. Return JP14 to its normal setting by shorting pin 1 &... - Page 20 ® This motherboard supports Intel Pentium 4 Socket 478 series CPU (Willamette / Northwood). Be careful of CPU orientation when you plug it into CPU socket. 2. Locate Pin 1 in the socket and look for a black dot or cut edge on the 1.
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Page 21: Cpu Installation
3. Press down the CPU socket lever and finish CPU installation. CPU cut edge Note: If you do not match the CPU socket Pin 1 and CPU cut edge well, it may damage the CPU. Note: This socket supports Micro-FC-PGA2 package CPU, which is the latest CPU package developed by Intel. - Page 22 This motherboard comes with a retention module attached on the CPU socket when shipped, we strongly recommend you to install AOpen special designed CPU Fan as shown below on the retention module for better heat dissipation. Please install the CPU Fan correctly as the following pictures shown.
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Page 23: Cpu Jumper-Less Design
CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency through the BIOS setup, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less designs are eliminated. There will be no worry of wrong CPU voltage detection. Clock Generator ®... - Page 24 This motherboard supports CPU VID function. The CPU core voltage will be automatically detected. BIOS Setup > Frequency/Voltage Control > CPU Clock Setting This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches are needed.
- Page 25 CPU Core System Ratio Frequenc Clock Pentium 4 1400MHz 100MHz 400MHz 1.4G Pentium 4 1500MHz 100MHz 400MHz 1.5G Pentium 4 ® Warning: Intel 845 chipset supports 1600MHz 100MHz 400MHz 1.6G maximum 400MHz (100MHz*4) system Pentium 4 bus and 66MHz AGP clock; higher clock 1700MHz 100MHz 400MHz...
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Page 26: Cpu And System Fan Connector (With H/W Monitoring)
Plug in the CPU fan cable to the 3-pin CPU FAN connector. If you have chassis fan, you can also plug it on System Fan (FAN2) or AUX Fan (FAN3) connector. FAN2 Connector +12V SENSOR CPU Fan Connector Note: Some CPU fans do not have FAN3 Connector sensor pin, so that cannot support hardware monitoring function. -
Page 27: Dimm Sockets
This motherboard has two 184-pin DIMM sockets that allow you to install PC200 PC266 memory up to 2 GB. DIMM1 DIMM2... - Page 28 Please follow the procedure as shown below to finish memory installation. Make sure the DDR DIMM module’s pin face down and match the socket’s size as depicted below. 40 pins 52 pins Insert the module straight down to the DDR DIMM slot with both hands and press down firmly until the DDR DIMM module is securely in place.
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Page 29: Front Panel Connector
Attach the power LED, Keylock, speaker, power and reset switch connectors to the corresponding pins. If you enable “Suspend Mode” item in BIOS Setup, the ACPI & Power LED will keep flashing while the system is in suspend mode. Locate the power switch cable from your ATX housing. It is 2-pin female connector from the housing front panel. -
Page 30: Atx Power Connector
This motherboard comes with a 20-pin ATX power connector and an extra 4-pin connector as shown below. Make sure you plug in the right direction. We strongly recommend you to insert the 4-pin connector before connecting the 20-pin connector. Ground Pin1 Ground PW-OK... -
Page 31: Ide And Floppy Connector
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDC and IDE connector. The blue connector is IDE1 for clear identification. Be careful of the pin1 orientation. Wrong orientation may cause system damage. Pin 1 Secondary Secondary Master (3rd) Slave (4th) IDE 2 (Secondary) IDE 1 (Primary) - Page 32 IDE1 is also known as the primary channel and IDE2 as the secondary channel. Each channel supports two IDE devices that make a total of four devices. In order to work together, the two devices on each channel must be set differently to Master and Slave mode.
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Page 33: Irda Connector
The IrDA connector can be configured to support wireless infrared module, with this module and application software such as Laplink or Windows 95 Direct Cable Connection, the user can transfer files to or from laptops, notebooks, PDA devices and printers. This connector supports HPSIR (115.2Kbps, 2 meters) and ASK-IR (56Kbps). -
Page 34: Agp (Accelerated Graphic Port) Expansion Slot
The MX4B provides an 4x slot. The AGP 4x is a bus interface targeted for high-performance 3D graphic. AGP supports only memory read/write operation and single-master single-slave one-to-one only. AGP uses both rising and falling edge of the 66MHz clock, for 2X AGP, the data transfer rate is 66MHz x 4bytes x 2 = 528MB/s. AGP is now moving to AGP 4x mode, 66MHz x 4bytes x... -
Page 35: Support 10/100 Mbps Lan Onboard (Optional)
Intel 845 (Brookdale) chipset includes a fast Ethernet controller on chip. On the strength of Intel 82562ET PHY on board, which is a highly-integrated Platform LAN Connect device, it provides 10/100M bps Ethernet for office and home use, the Ethernet RJ45 connector is located on top of USB connectors. The green LED indicates the link mode, it lights when linking to network and blinking when transferring data. -
Page 36: Cnr (Communication And Network Riser) Expansion Slot
is a riser card specification to replace the AMR (Audio/Modem Riser) that supports V.90 analog modem, multi-channel audio, and phone-line based networking. Owing to CPU computing power getting stronger, the digital processing job can be implemented in main chipset and share CPU power. The analogy conversion (CODEC) circuit requires a different and separate circuit design, which is put on CNR card. -
Page 37: Pc99 Color Coded Back Panel
The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, RJ-45 LAN Connector (Optional), COM1 and COM2, Printer, four USB, AC97 sound and game ports. The view angle of drawing shown here is from the back panel of the housing. RJ-45 LAN SPP/EPP/ECP Connector MIDI/Game Port... -
Page 38: Support 2 Nd Usb Port
This motherboard provides four connectors to connect USB devices, such as mouse, keyboard, modem, printer, etc. There are two connectors on the PC99 back panel. You can use proper cable to connect the other USB connector to the back panel or front panel of chassis. -
Page 39: Cd Audio Connector
This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound. CD-IN... -
Page 40: Modem Audio Connector
This connector is used to connect Mono In/MIC Out cable from internal modem card to onboard sound circuit. The pin 1-2 is Mono In, and the pin 3-4 is MIC Out. Please note that there is no standard for this kind of connector yet, only some internal modem cards implement this connector. -
Page 41: Front Audio Connector
If the housing has been designed with an audio port on the front panel, you’ll be able to connect onboard audio to front panel through this connector. By the way, please remove 5-6 and 9-10 jumper caps from the Front Audio Connector before connecting the cable. -
Page 42: Battery-Less And Long Life Design
This Motherboard implements Flash ROM and a special circuit that allows you to save your current CPU and CMOS Setup configurations without the need of a battery. The RTC (real time clock) can also keep running as long as the power cord is plugged. If you lose your CMOS data by accident, you can just reload the CMOS configurations from Flash ROM and the system will recover as usual. -
Page 43: Over-Current Protection
CPU, memory, HDD, add-on cards installed on this motherboard may be damaged because of component failure, human operating error or unknown nature reason. AOpen cannot guaranty the protection circuit will always work perfectly. -
Page 44: Hardware Monitoring
CPU temperature. If any of these systems’ status goes wrong, there will be an alarm through the chassis external speaker or buzzer of motherboard (if existed) to warn the user. Fan Speed AOpen H/W Detection Monitoring... -
Page 45: Resettable Fuse
Traditional motherboard has fuse for Keyboard and port to prevent over-current or shortage. These fuses are soldered onboard that when it is broken (function as protecting the motherboard), user still cannot replace it and the motherboard is still malfunctioning. With expensive Resettable Fuse, the motherboard can be resumed back to normal function after the fuse had done its protection job. -
Page 46: 2200Μf Low Esr Capacitor
CPU power. The idea of where to put these capacitors is another know-how that requires experience and detail calculation. Not only that, MX4B implements 2200μF capacitors, which is much larger than normal capacitor (1000 & 1500μf) and it provides better stability for CPU power. - Page 47 The power circuit of the CPU core voltage must be checked to ensure system stability for high speed CPUs (such as the new Pentium III, or when overclocking). A typical CPU core voltage is 2.0V, so a good design should control voltage between 1.860V and 2.140V.
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Page 48: Layout (Frequency Isolation Wall)
For high frequency operation, especially overclocking, layout is the most important factor to make sure chipset and CPU working in stable condition. The layout of this motherboard implements AOpen’s unique design called “ Frequency Isolation Wall”. Separating each critical portion of motherboard into... -
Page 49: Pure Aluminum Heatsink
Cool down CPU and Chipset is important for system reliability. Aluminum heat sink provides better heat consumption especially when you are trying to over clocking the CPU. -
Page 50: Driver And Utility
There are motherboard drivers and utilities included in AOpen Bonus CD disc. You don’t need to install all of them in order to boot your system. But after you finish the hardware installation, you have to install your operation system first (such as Windows 98) before you can install any drivers or utilities. -
Page 51: Auto-Run Menu From Bonus Cd Disc
You can use the auto-run menu of Bonus CD disc. Choose the utility and driver and select model name. -
Page 52: Installing Intel® Chipset Software Installation Utility
® ® Windows 95/98 cannot recognize this chipset, because it was released before the Intel 845 chipset. You can install the Intel INF Update Utility from the Bonus Pack CD disc auto-run menu to eliminate the “?” marks. -
Page 53: Installing Intel Iaa Driver
You can install Intel IAA Driver to increase the performance of software applications and reduce PC boot times. You can find it in AOpen Bonus Pack CD disc. -
Page 54: Installing Lan Driver (Optional)
Click Next at the Update Device Driver Wizard. Select "Display a list of all the drivers..." and click Next. Insert the AOpen Bonus CD and click Have Disk. Enter the appropriate drive for your disk media (for example: D:\) ,and click OK. -
Page 55: Installing Onboard Sound Driver
This motherboard comes with a RealTek ALC201 AC97 CODEC. You can find the audio driver from the Bonus Pack CD disc auto-run menu. -
Page 56: Acpi Suspend To Hard Drive
ACPI Suspend to Hard Drive is basically controlled by Windows operation system. It saves your current work (system status, memory and screen image) into hard disk, and then the system can be totally power off. Next time, when power is on, you can resume your original work directly from hard disk within few seconds without go through the Windows booting process and run your application again. -
Page 57: System Requirement
System Requirement AOZVHDD.EXE 1.30b or later. Delete config.sys and autoexec.bat. Fresh installation of Windows 98 on a new system 1. Execute "Setup.exe /p j" to install Windows 98 2. After Windows 98's installation is complete, go to the Control Panel > Power Management. a. - Page 58 size the longer this process will take.
- Page 59 Changing from APM to ACPI (Windows 98 only) 1. Run "Regedit.exe" a. Go through the following path HKEY_LOCAL_MACHINE SOFTWARE MICROSOFT WINDOWS CURRENT VERSION DETECT b. Select "ADD Binary" and name it as "ACPIOPTION". c. Right click and select Modify, add "01" after "0000" to make it "0000 01". d.
- Page 60 4. Run "Add New Hardware" again and it will find "Advanced Power Management Resource". 5. Click "OK". Tip: Currently we found only ATI 3D Rage Pro AGP card would support ACPI suspend to disk. Please refer to AOpen web site for latest update...
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Page 61: Acpi Suspend To Ram (Str)
This motherboard supports ACPI Suspend to RAM function. With this function, you can resume your original work directly from DRAM without going through the Windows 98 booting process and run your application again. Suspend to DRAM saves your current work in the system memory, it is faster than Suspend to Hard Drive but requires power supplied to DRAM, while Suspend to Hard Drive requires no power. - Page 62 To implement ACPI Suspend to DRAM, please follow the procedures as below: System Requirement An ACPI OS is required. Currently, Windows 98 is the only choice. ® The Intel Chipset Software Installation Utility must have been installed properly. Procedures Changed the following BIOS settings. BIOS Setup >...
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Page 63: Award Bios
Most BIOS setting of MX4B had optimized by AOpen’s R&D engineering team. But, the default setting of BIOS still can’t fine-tune the chipset controlling entire system. Hence, the rest of this chapter is intended to guide you through the process of configuring your system using setup. -
Page 64: About Bios Function Description
… AOpen always dedicates to give users a more friendly computer system. Now, we include all function descriptions of BIOS setup program into the BIOS Flash ROM. When you select one function of BIOS setup program, the function description will appeared at right side of screen. -
Page 65: How To Use Award™ Bios Setup Program
Award™ BIOS setup program. The following table provides details about how to use keyboard in the Award™ BIOS setup program. By the way, all products of AOpen also provides a special function in the BIOS setup, you can press <F3> key selecting preferred menu language to display. - Page 66 Load fail-save setting value from CMOS. Load turbo setting value from CMOS. Save changed setting and exit setup program. Note: AOpen always dedicates to give users a more friendly computer system. Now, we include all function descriptions of BIOS setup program into the BIOS Flash ROM.
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Page 67: How To Enter Bios Setup
After you finish the setting of jumpers and connect correct cables. Power on and enter the BIOS Setup, press <Del> during POST (Power-On Self Test). Choose "Load Setup Defaults" for recommended optimal performance. Warning: Please avoid of using "Load Turbo Defaults", unless you are sure your system components (CPU, DRAM, HDD, etc.) are good enough for turbo setting. -
Page 68: Bios Upgrade
By doing so, you are taking a risk of BIOS flash failure. If you indeed intent on upgrading, PLEASE BE SURE to use the right BIOS revision for the right motherboard model. AOpen Easy Flash is a little different than traditional flash method. The BIOS binary file and flash routine are linked together and you simply run a single commend to complete the flash process. - Page 69 Below are the steps for easy flashing procedures: (applies for Award BIOS ONLY) 1. Download new BIOS upgrade file from AOpen's web site. For example, MX4B102.ZIP. 2. Run shareware PKUNZIP (http://www.pkware.com/) which supports miscellaneous operation systems to extract the binary BIOS file and the flash utility.
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Page 70: Overclocking
As a leading manufacturer in motherboard industry, AOpen always listens to what customers want and develop products to fit different user's requirements. Reliability, compatibility, leading technology and friendly features are our basic goals when designing motherboards. Other than above mentioned design criteria, there are power users who are always seeking to push the limitation of the system performance by overclocking which we call them "Overclocker". -
Page 71: Vga Card & Hard Disk
VGA and HDD is key components for overclocking, for your reference, the following list are what have been successful overclocked in our lab. Please note that AOpen can not guaranty they can be successful overclocked again. Please check the Available Vendor List (AVL) by link to our official website. -
Page 72: Glossary
AGP uses both rising and falling edge of the 66MHz clock, for 2X AGP, the data transfer rate is 66MHz x 4byte x 2 = 528MB/s. AGP is now moving to 4X mode, 66MHz x 4byte x 4 = 1056MB/s. AOpen is the first company... -
Page 73: Amr (Audio/Modem Riser)
Unlike ACPI, BIOS controls most APM power management functions. AOpen Suspend to Hard Drive is a good example of APM power management. ATA is the specification of diskette interface. In 80’s, many software and hardware manufacturers instituted the ATA specification together. -
Page 74: Ata/100
ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edge and falling edge as ATA/66 but clock cycle time is reduced to 40ns. The data transfer rate is (1/40ns) x 2 bytes x 2 = 100MB/s. To use ATA/100, you need special 80-wire IDE cable, the same as ATA/66. -
Page 75: Codec (Coding And Decoding)
Normally, CODEC means a circuit that can do digital to analog conversion and also the analog to digital conversion. It is part of AC97 sound/modem solution. DDR SDRAM utilizes the existing DRAM infrastructure and technology while doubling the nominal bandwidth available to systems in an easy to design and simple to adopt way. -
Page 76: Ecc (Error Checking And Correction)
The ECC mode needs 8 ECC bits for 64-bit data. Each time memory is accessed; ECC bits are updated and checked by a special algorithm. The ECC algorithm has the ability to detect double-bit error and automatically correct single-bit error while parity mode can only detect single-bit error. -
Page 77: Ev6 Bus
Flash ROM can be re-programmed by electronic signals. It is easier for BIOS to upgrade by a flash utility, but it is also easier to be infected by virus. Because of increase of new functions, BIOS size is increased from 64KB to 256KB (2M bit). AOpen AX5T is the first board to implement 256KB (2Mbit) Flash ROM. -
Page 78: Fsb (Front Side Bus) Clock
FSB Clock means CPU external bus clock. CPU internal clock = CPU FSB Clock x CPU Clock Ratio See SMBus. IEEE 1394 is a low-cost digital interface originated by Apple Computer as a desktop LAN and developed by the IEEE 1394 working group. -
Page 79: Pbsram (Pipelined Burst Sram)
For Socket 7 CPU, one burst data read requires four QWord (Quad-word, 4x16 = 64 bits). PBSRAM only needs one address decoding time and automatically sends the remaining QWords to CPU according to a predefined sequence. Normally, it is 3-1-1-1, total 6 clocks, which is faster than asynchronous SRAM. -
Page 80: Pdf Format
A file format for electronic document, PDF format is independent from platform, you can read PDF file under Windows, Unix, Linux, Mac … with different PDF reader. You can also read PDF file by web browser such as IE and Netscape, note that you need to install PDF plug-in first (Included in Acrobat Reader). -
Page 81: Rimm (Rambus Inline Memory Module)
SDRAM comes in 64-bit 168-pin DIMM and operates at 3.3V. AOpen is the first company to support dual-SDRAM DIMMs onboard (AP5V), from Q1 1996 A memory space in Flash-ROM to simulate E PROM operation, AOpen motherboard uses Shadow E... -
Page 82: Smbus (System Management Bus)
SMBus is also called I2C bus. It is a two-wire bus developed for component communication (especially for semiconductor IC). For example, set clock of clock generator for jumper-less motherboard. The data transfer rate of SMBus is only 100Kbit/s, it allows one host to communicate with CPU and many masters and slaves to send/receive message. -
Page 83: Usb (Universal Serial Bus)
USB is a 4-pin serial peripheral bus that is capable of cascading low/medium speed peripherals (less than 10Mbit/s) such as keyboard, mouse, joystick, scanner, printer and modem. With USB, the traditional complex cables from back panel of your PC can be eliminated. -
Page 84: Troubleshooting
If you encounter any trouble to boot you system, follow the procedures accordingly to resolve the problem. Start Turn off the power and unplug the AC power cable, then remove all of the add-on cards and cables, including VGA, IDE, FDD, COM1, COM2 and printer. - Page 85 Continue Install the VGA card. Then connect your monitor and keyboard. Turn on the power and check if the power supply and CPU fan work properly. The problem is probably caused by power supply or motherboard failure. Next Please contact your reseller or local distributor for repairing.
- Page 86 Continue Perhaps your VGA card Check if there is display? or monitor is defective. Press <Ctrl> and <Alt> key at the same time, hold them and then press <Del> to reboot the system. It is very possible that your Check if the system keyboard is defective.
- Page 87 Continue During system rebooting, press <Del> to enter BIOS setup. Choose “Load Setup Default”. Turn off the system and re-connect IDE cable. The problem should be Check if the system can caused reboot successfully? cable or HDD itself. Re-install the operating system such as Windows 98.
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Page 88: Technical Support
Dear Customer, Thanks for choosing AOpen products. To provide the best and fastest service to our customer is our first priority. However, we receive numerous emails and phone-calls worldwide everyday, it is very hard for us to serve everyone on time. We recommend you follow the procedures below and seek help before contact us. - Page 89 5 5 5 5 News Group: Your problem probably had been answered by our support engineer or professional users on the news group. http://www.aopen.com/tech/newsgrp/default.htm 6 6 6 6 6 6 6 6 Contact Distributors/Resellers: We sell our products through resellers and integrators. They should know your system configuration very well and should be able to solve your problem more efficiently than us.
- Page 90 Model name and BIOS version can be found on upper left corner of first boot screen (POST screen). For example: MX4B R1.20 Feb.01.2001 AOpen Inc. Award Plug and Play BIOS Extension v1.0A Copyright © 1998, Award Software, Inc. MX4B is model name of motherboard; R1.20 is BIOS version.
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Page 91: Product Registration
Be able to join the discussions of web-based news groups. AOpen makes sure that the information you provide is encrypted, so that it cannot be read or intercepted by other people or companies. Further, AOpen will not disclose any of information you submitted under any conditions. Please consult our... -
Page 92: How To Contact Us
Please do not hesitate contact us if you have any problem about our products. Any opinion will be appreciated. Pacific Rim Europe America AOpen America Inc. AOpen Inc. AOpen Computer b.v. Tel: 886-2-3789-5888 Tel: 31-73-645-9516 Tel: 1-510-498-8928 Fax: 886-2-3789-5899 Fax: 31-73-645-9604...