Related Manuals for AOpen AX4B-G2
Summary of Contents for AOpen AX4B-G2
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Page 1: Ax4B-G2 / Ax4B-G2N
AX4B-G2 / AX4B-G2N DOC. NO.: AX4BG2N-OL-E0205A... -
Page 2: Table Of Contents
’ ’ AX4B-G2 / AX4B-G2N........................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........................ - Page 3 Front Panel Connector ..............................31 ATX Power Connector ..............................32 AC Power Auto Recovery .............................. 33 IDE and Floppy Connector ............................34 IrDA Connector ................................36 AGP (Accelerated Graphic Port) Expansion Slot ......................37 AGP Protection Technology............................38 WOL (Wake on LAN) ..............................39 Support 10/100 Mbps LAN onboard (AX4B-G2N only) ....................
- Page 4 Hardware Monitoring ..............................52 AOConfig Utility................................53 Resetable Fuse ................................55 2200µF Low ESR Capacitor ............................56 Layout (Frequency Isolation Wall) ..........................58 Enlarged Aluminum Heatsink ............................59 Vivid BIOS technology..............................60 Driver and Utility ........................61 Auto-run Menu from Bonus CD Disc ..........................62 Installing Intel®...
- Page 5 AC97 ..................................... 85 ACPI (Advanced Configuration & Power Interface) ....................... 85 AGP (Accelerated Graphic Port)............................ 85 AMR (Audio/Modem Riser)............................86 AOpen Bonus Pack CD ..............................86 APM (Advanced Power Management) ........................... 86 ATA (AT Attachment) ..............................86 ATA/66 ..................................86 ATA/100 ..................................
- Page 6 DDR (Double Data Rated) SDRAM ..........................88 DIMM (Dual In Line Memory Module) ..........................89 DMA (Direct Memory Access)............................89 ECC (Error Checking and Correction) ........................... 89 EDO (Extended Data Output) Memory .......................... 89 EEPROM (Electronic Erasable Programmable ROM)....................90 EPROM (Erasable Programmable ROM)........................
- Page 7 PCI (Peripheral Component Interface) Bus ........................93 PDF Format................................... 93 PnP (Plug and Play) ..............................94 POST (Power-On Self Test) ............................94 RDRAM (Rambus DRAM) ............................. 94 RIMM (Rambus Inline Memory Module) ........................94 SDRAM (Synchronous DRAM) ............................95 Shadow E PROM ................................
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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 format, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc or you can get free download from... -
Page 10: Overview
® Thank you for choosing AOpen AX4B-G2 / AX4B-G2N motherboard. The AX4B-G2 / AX4B-G2N is Intel Socket 478 motherboard (M/B) based on the ATX form factor featuring the Intel® 845D (Brookdale) chipset. As high performance chipset ® ® built in the M/B, the AX4B-G2 / AX4B-G2N motherboard can support Intel... -
Page 11: Feature Highlight
1056MB/s. AX4B-G2 / AX4B-G2N motherboard includes one 1.5V AGP expansion slot with 4x SBA/Data Transfer and 2x/4x Fast Write capability. For AD and SBA signaling, AX4B-G2 / AX4B-G2N motherboard can support 4X mode. Of five PCI slots provided, all of them are master PCI slots with arbitration and decoding for all integrated... - Page 12 This on-board audio includes a complete audio recording nd playback system. Watch Dog Timer Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking. Four USB Connectors Provides two ports, four...
- Page 13 AGP Protection Technology With AGP Protection Technology implemented, this motherboard will automatically detect the voltage of AGP card and prev your chipsets from being burnt out. Power Management/Pl ug 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.
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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 Onboard AC’97 CODEC Blac k: CD-IN Connector PC99 Colored Back Panel Green: AUX-IN Connector Resetable Fuse Red: MODE N Connector JP28 Keyboard/Mouse Wakeup Front A Connector Enable/Disable Jumper Connector Intel 82562ET PHY (For AX4B-G2N only) 2200μF Low ESR Capacitors 4-pin 12V. -
Page 16: Block Diagram
DDR266 DD R SDRAM Up to 2GB 32-bit PCI Slot x5 DIMM Socket x2 Socket 478 400MHz System Intel Pentium 4 PCI Bus Intel 845D Primary 33/66100 Channel IDE D rive x4 Secondary AGP 4X Slot Channel AC97 ICH2 CODEC Intel 82562ET LAN connect Component AC Link... -
Page 17: Hardware Installation
This cha pter 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 componen 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 "Manufacturer Upgrade Optional" And "User Upgrade Optional
“User Upgrade Optional”. As for those optional functions that can’t be upgraded by ourselves, we call them “ Manufacturer Up Optional”. If needed, you can contact our local distributors or resellers for purchasing “User Upgrade Optional” compon and again you can visit AOpen official web site: www.aopen.com for more detail information. -
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 pins 1 &... - Page 20 ® This motherboard supports Intel Pentium 4 Socket 478 series CPU. Be careful of CPU orientation w hen you plug it into CPU socket. Locate Pin 1 in the socket and look for a cut edge on the CPU upper 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 icro-FC-PGA2 package CPU, which is the latest CPU package developed Intel. - Page 22 CPU socket when shipped, we strongly recommend you to erboard comes with a retention module attached on the CPU socket when shipped, we strongly recommend you to nstall AOpen nstall AOpen special designed CPU Fan as shown below on the retention module for better heat dissipation.
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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 wr n o g CPU voltage detection. - Page 24 “ ” “ ” With this motherboard, AOpen provides a very special, useful feature for overclockers. When you power-on the system, the BIOS will check last system POST status. If it succeeded, the BIOS will enable “Watch Dog Timer” function immediately, and set the CPU frequency by user’s setting that stored in the BIOS.
- Page 25 Tip: If your system hangs or fails to boot because overclocking, simply <Home> key to restore the default setting or Home you can wait the AOpen “Watch Dog Timer” reset the system after five seconds and system will auto-detect hardware again.
- Page 26 ® Northwood CPU CPU Core Frequency FSB Clock System Bus Ratio Warning: Intel 845D chipset supports maximum 400MHz Pentium 4 1.6G 1600MHz 100MHz 400MHz (100MHz*4) system bus Pentium 4 1.6G 1600MHz 133MHz 533MHz and 66MHz AGP clock; Pentium 4 1.7G 1700MHz 133MHz 533MHz...
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Page 27: 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, y ou ca n al so plug it on System Fan (FAN2) or FAN3 (AUX F an) c onnector N2 Conn +12V SENSOR CPU Fan Connector Note: e CPU fans do not have... -
Page 28: Jp28 Keyboard/Mouse Wake-Up Enable/Disable Jumper
This motherboard provides keyboard / mouse wake-up function. You can use JP28 to enable or disable this function, which could resume your system from suspend mode with keyboard or mouse installed. The factory default setting is set to “Disable”(2-3), and you may enable this function by setting the jumper to 1-2. -
Page 29: Dimm Sockets
This motherboard has two 184-pin DDR DIMM sockets that allow you to install DDR266 memory up to 2 GB. Both ECC and Non-ECC DDR SDRAM are supported, but you can’t install them both on DIMM. Otherwise, it will cause serious damage on memory sockets or SDRAM module. - Page 30 Please follow the procedure as shown below to finish memory installation. Make sure the 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 DIMM slot with both hands and press down firmly until the DIMM module is secure in place.
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Page 31: Front Panel Connector
Attach the power LED, 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 32: Atx Power Connector
This motherboard comes with a 20-pin and 4-pin ATX power connector. Make sure you plug in the right direction. We strongly recommend you to connect the 4-pin 12V ATX connector before connecting the 20-pin ATX power connector and use standard power supply specially designed for Pentium 4 system. -
Page 33: Ac Power Auto Recovery
A traditional ATX system should remain at power off stage when AC power resumes from power failure. This design inconvenient for a network server or workstation, without an UPS, that needs to keep power-on. This motherboard implemen an AC Power Auto Recovery function to solve this problem. -
Page 34: 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. Primary Primary Master Slave (2nd) (1st) IDE 1 (Primary) IDE 2 (Secondary) - Page 35 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 tog ether, the two devices on each channel must be set differently to Master and Slave mode.
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Page 36: 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). Install the infrared module onto the IrDA connector and enable the infrared function from BIOS Setup, UART Mode, make sure to have the correct orientation when you plug in the IrDA connector. -
Page 37: Agp (Accelerated Graphic Port) Expansion Slot
The AX4B-G2 / AX4B-G2N provides an AX4B-G2 / AX4B-G2N 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. -
Page 38: Agp Protection Technology
With the outstanding R&D ability of AOpen and its specially developed circuit, AX4B-G2 / AX4B-G2N implements an all new technology to protect your motherboard from being damaged by over-voltaging of AGP card. With AGP Protection Technology implemented, this motherboard will automatically detect the voltage of AGP card and prevent your chipsets from being burnt out. -
Page 39: Wol (Wake On Lan)
This feature is very similar as Wake On Modem, but it goes through local area network. To use Wake On LAN function, you must have a network card with chipset that supports this feature, and connect a cable from LAN card to motherboard WOL connector. The system identification information (probably IP address) is stored on network card and because there is a lot of traffic on the Ethernet, you need to install network management software, such as ADM, for the checking of how to wake up the system. - Page 40 WOL Connector (Ethernet Card Side) Connector (Mot herboard Side) Note: This picture is f or example only, it may not exactly be the same motherboard.
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Page 41: Support 10/100 Mbps Lan Onboard (Ax4B-G2N Only)
The South Bridge ICH2 includes The South Bridge ICH2 includes a fast Ethernet controller on chip. On the strength of Intel 82562ET PHY a fast Ethernet controller on chip. On the strength of Intel 82562ET PHY on board, which is on board, which is a highly-integrated Platform LAN C a highly-integrated Platform LAN C... -
Page 42: 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-chann audio, and phone-line based networking. Owing to CPU computing power getting stronger, the digital processing job can b implemented in main chipset and share CPU power. The analogy conversion (CODEC ) circuit requires a different and separa circuit design, which is put on CNR card. -
Page 43: Pc99 Color Coded Back Panel
The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, COM1 and COM2, RJ45 LAN jack, Printer, four USB, AC97 sound and game ports. The view angle of drawing shown here is from the back panel of the housing. RJ45 10/100 SPP/EPP/ECP LAN Jack MIDI/Game Port... -
Page 44: 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 45: Chassis Intrusion Connector
The “CASE OPEN” header provides chassis intrusion-monitoring function. To make this function works, you have to enable it in the system BIOS, connect this header to a sensor somewhere on the chassis. So, whenever the sensor is triggered by lights or the opening of the chassis, the system will send out beep sound to inform you. -
Page 46: Cd Audio Connector
This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound. Note: Though som e of the latest version o f Windows support “Digit al Audio” through I DE bus. Ho wever, in order to use Open Jukebo x player, wh ich is driven... -
Page 47: Modem Audio Connector
This connector is used to connect Mono In/MIC Out cable from internal modem card to onboard s ound 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 conne ctor yet, only some internal modem cards implement this connector. -
Page 48: Aux-In Connector
This connector is used to connect MPEG Audio cable from MPEG card to onboard sound. -
Page 49: Front Audio Connector
If the housing has been designed with an audio port on the front panel, you’ll be able to co nnect 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 50: 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. -
Page 51: Cpu 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 52: 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 Monitoring Detection Circuit Utility... -
Page 53: Aoconfig Utility
Moreover, AOconfig allows users to save information in *.BMP or *.TXT format which users may collect the system information in detail and send them AOpen directly for technical support or further diagnosis of system problem. The system page shows the... - Page 54 NOTE: AOconfig can be used in Windows 98SE/ME, NT4.0/2000, or even the latest Windows XP. Please be informed that AOconfig can only be operated in a system equipped with an AOpen motherboard. Meanwhile, all applications must be closed before starting AOconfig.
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Page 55: Resetable Fuse
Traditional motherboard has fuse for Keybo rd a Traditional motherboard has fuse for Keybo rd a port to prevent ove r-current or shortage. These fuses are soldered onboard that when it is broken (function a rotecting the motherboard), user st ill canno t replace it and the motherboard is stil malfunctioning. -
Page 56: 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, AX4B-G2 / AX4B-G2N implements 2200μF capacitors, which is much larger than normal capacitor (1000 and 1500μf) and it provides bett er stab ility for CPU power. - Page 57 The pow r 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 co re voltage is 2.0V, so a good design should control voltage between 1.860V and 2.140V.
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Page 58: 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 59: Enlarged Aluminum Heatsink
Cool down CPU and Chipset is important for system reliability. Enlarged aluminum heat sink provides better heat consumption specially when you are trying to over clocking the CPU. -
Page 60: Vivid Bios Technology
Have you been fed up with the conservative and immutable POST screen? Let’s rule out th tradition idea that PO ST screen are stiff and frigid, and let AOpen show you the newly developed VividBIOS to experience the lively vivid colorful POST screen! -
Page 61: 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 fini sh the hardware installation, you have to install your operation system first (such as Windows 98) before you can install any drivers or utilities. -
Page 62: Auto-Run Menu From Bonus Cd Disc
You can use the auto-run menu of Bonus CD disc. Ch oose the utility and driver and select model name. -
Page 63: Installing Intel® Chipset Software Installation Utility
® ® Windows 95/98 cannot recognize this chipset, because it was released before the Intel 845D chipset. You can install the Intel INF Update Utility from the Bonus Pack CD disc auto-run menu to eliminate the “?” marks. -
Page 64: 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 66: Installing Onboard Sound Driver
This motherboard comes with AC97 CODEC. You can find the audio driver from the Bonus Pack CD disc auto-run menu. -
Page 67: Installing Lan Driver (Ax4B-G2N Only)
You may find Intel’s Intel PRO Network Connections to install the LAN Driver step by step. -
Page 68: Installing Hardware Monitoring Utility
o ni You can install Hardware Monitoring Utility to monitor CPU temperature, fans and system v oltage. The hardware monitoring unction is automatically implemented by the BIOS and utility software. No hardware installation is needed. -
Page 69: Acpi Suspend To Hard Drive
ACPI Suspend to Hard Drive is basically controlled by Windows operation system. It saves your current work (system st atus, memory and screen image) into hard disk, and then the system can be totally power off. Next time, when power is on, y ou can resume your original work directly from hard disk within few seconds without go through the Windows boot ing process and run... -
Page 70: 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. Exec ute "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 71 memory size the longer this process will take.
- Page 72 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 73 HKEY_LOCAL_MACHINE SOFTWARE MICROSOFT WINDOWS CURRENT VERSION DETECT ACPI OPTION b. Right click and select "Modify, change "01" to "02" to make it "0000 02". Tip: "02" means Windows 98 is ACPI acknowledged but the ACPI function is disabled. c. Save changes. 2.
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Page 74: 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 75 o implement ACPI Suspend to DRAM, please follow the procedures as below: System Requirement An ACPI OS is required. Currently, except Windows 95 and Windows NT, all other Windows Systems support ACPI. ® The Intel Chipset Software Installati on Utility must have been installed properly. Procedures Changed the foll owing BIOS settings.
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Page 76: Award Bios
BIOS provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports. Most BIOS settin g of AX4B-G2 / AX4B-G2N had been optimized by AOpen’s R&D engineering team. But, the default setting of BIOS still can’t fi ne-tune the chipset controlling entire system. -
Page 77: 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 78: 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 79 Description Load Setup Default setting value from CMOS. Load turbo setting value from CMOS. Save changed setting and exit setup program.
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Page 80: How To Enter Bios Setup
After you finish the setting of jumpers and conne After you finish the setting of jumpers and conne ct correct cables. Power on and enter the BIOS Setup, press <Del> during ct correct cables. Power on and enter the BIOS Setup, press <Del> during POST (Power-On Se lf Tes t). -
Page 81: Bios Upgrade Under Windows Environment
Windows 95/98, 98SE/ME, NT4.0/2000, or even the latest Windows XP. In the meanwhile, in order to provide a much more user-friendly operating environment, AOpen EZWinFlash is natively designed to have multi-language function to provide easier way for users’ usage in changing BIOS setting. - Page 82 1. Download the new version of BIOS package zip file from AOpen official web site. (ex: http://www.aopen.com) 2. Unzip the download BIOS package (ex: WAX4BG2102.ZIP) with WinZip (http://www.winzip.com) in Windows environment.
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Page 83: 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 84: Vga Card & Hard Disk
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 85: Glossary
AGP uses both rising and falling edge of the 66MHz clock, for 2X AGP, the data ransfer 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... -
Page 86: 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 87: 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 ime 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 88: Bus Master Ide (Dma Mode)
The traditiona l PIO (Programmable I/O) IDE requires the CPU to involve in all the activities of the IDE access including waiting for the me chanical events. To reduce the workload of the CPU, the bus master IDE device transfers data from/to memory without interrupting CPU, and releases CPU to operate concurrently while data is transferring between memory and IDE device. -
Page 89: Dimm (Dual In Line Memory Module)
DIMM socket has total 168-pin and supports 64-bit data. It can be single or double side, the golden finger signals on each side of PCB are different, and that is why it was called Dual In Line. Almost all DIMMs are made by SDRAM, which operate at 3.3V. Note that some old DIMMs are made by FPM/EDO and only operate at 5V. -
Page 90: Eeprom (Electronic Erasable Programmable Rom)
Also known as E PROM. Both EEPROM and Flash ROM can be re-programmed by electronic signals, but the interface technology is different. Size of EEPROM is much smaller than flash ROM. Traditional motherboard stores BIOS code in EPROM. EPROM can only be erased by ultra-violet (UV) light. If BIOS has to be upgraded, you need to remove EPROM from motherboard, clear by UV light, re-program, and then insert back. -
Page 91: Flash Rom
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 e 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 92: Ieee 1394
IEEE 1394 is a lo w-cost digital interface originated by Apple Computer as a desktop LAN and developed by the IEEE 1394 working group. The IEEE 1394 can transport data at 100, 200 or 400 Mbps. One of the solutions to connect digital television devices together at 200 Mbps. -
Page 93: Dimm
SDRAM DIMM that supports 100MHz CPU bus clock. SDRAM DIMM that supports 133MHz CPU bus clock. Based on FSB frequency, the DDR DRAM has 200MHz, 266MHz and 333 MHz three types of working frequency. Because of DDR DRAM data bus is 64-bit, it provides data transfer bandwidth up to 200x64/8=1600MB/s, and 266x64/8=2100MB/s, and 333x64/8=2700MB/s. -
Page 94: Pnp (Plug And Play)
The PnP specification suggests a standard register interfac e for both BIOS and operating system (such as Windows 95). These registers are used by BIOS and operating system to configure system resource and prevent any conflicts. PnP BIOS or operating system will automatically allocate the IRQ/DMA/Memory. Currently, almost all the PCI cards and most ISA cards are already PnP complian The BIOS self-test procedure after power-on, sometimes, it is the first or the second screen shown on your monitor during... -
Page 95: Sdram (Synchronous Dram)
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 PROM operation, AOpen motherboard uses Shadow E... -
Page 96: Spd (Serial Presence Detect)
SPD is a small ROM or EEPROM device resided on the DIMM or RIMM. SPD stores memory module information such as DRAM timing and chip parameters. SPD can be used by BIOS to decide best timing for this DIMM or RIMM. Ultra DMA (or, more accur ately, Ultra DMA/33) is a protocol for transferring data between a hard disk drive through the computer’s dat path (or... -
Page 97: Vcm (Virtual Channel Memory)
NEC’s Virtual Channel Memory (VCM) is a new DRAM core architecture that dramatically improves t he memory system’s ability o service multimedia requirements. VCM increases memory bus efficiency and performance of any DRAM technology by providing a set o f fast static registers between the memory core and I/O pins. Using VCM technology results in reduced data access latency a nd reduced power consumption. -
Page 98: 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 99 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 100 Continue Perhaps your VGA card Check if there is display? or monitor is defe ctive. Press <Ctr l> and <Alt> ke y at the same time, hold them and then press <De l> to reboot the system. It is very possible that your Check if the system keyboard is defective.
- Page 101 Continue During system rebooting, press <Del> to enter BIOS setup. Choose “Load Setup Default”. Turn off the tem 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 102: 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 eceive numerous emails an d phone-calls worldwide everyday, it is very hard for us to serve everyone on time. We recommend ou follow the procedures be low and seek help before contact us. - Page 103 News Group: News posted by computer experts, you ar e welcome to join any discussion and learning from it. http://www.aopen.com/tech/newsgrp/default.htm 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. After all, their attitude of service is an important reference for you if next time you want to buy something else from them.
- Page 104 BIOS version can be found on upper left corner of first boot screen (POST screen). For example: 4B-G2 R1.20 May.01.2002 AOpen Inc. ard Plug and Play BIOS Extension v1.0A pyright © 1998, Award Software, Inc. AX4B-G2 / AX4B-G2N is model name of motherboard; R1.20 is BIOS version.
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Page 105: 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 ompanies. Further, AOpen will not disclose any of information you submitted under any conditions. Please consult our... -
Page 106: 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: 1-510-489-8928 Fax: 886-2-3789-5899 Fax: 31-73-645-9604...