Related Manuals for AOpen AX4T II
Summary of Contents for AOpen AX4T II
- Page 1 AX4T II DOC. NO.: AX4T2-OL-E0408C...
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Page 2: Table Of Contents
’ ’ AX4T II .............................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 ..............................33 IDE, Floppy AND IDE RAID (Optional) Connector ......................34 JP7 Raid Select Jumper (Optional)..........................36 IrDA Connector ................................37 AGP (Accelerated Graphic Port) Pro Expansion Slot .....................38 CNR (Communication and Network Riser) Expansion Slot ....................39 ® Support Intel PRO/100 Network Connection (Optional)....................40 PC99 Color Coded Back Panel............................41 Support 2...
- Page 4 Pure Aluminum Heatsink ...............................54 Driver and Utility..........................55 Auto-run Menu from Bonus CD Disc ..........................56 Eliminate “?” mark from Windows 95/98 ........................57 Installing Intel IAA Driver ...............................58 Installing Onboard LAN Driver (Optional) ........................59 Installing Onboard Sound Driver............................60 Installing Hardware Monitoring Utility ..........................61 ACPI Suspend to Hard Drive ............................62 ACPI Suspend to RAM (STR) ............................66 AWARD BIOS ..........................68...
- Page 5 ACPI (Advanced Configuration & Power Interface)......................77 AGP (Accelerated Graphic Port) ............................77 AMR (Audio/Modem Riser) ............................78 AOpen Bonus Pack CD ..............................78 APM (Advanced Power Management) ...........................78 ATA (AT Attachment)..............................78 ATA/66 ...................................78 ATA/100 ..................................79 BIOS (Basic Input/Output System) ..........................79 Bus Master IDE (DMA mode)............................79 CNR (Communication and Networking Riser) ........................79...
- Page 6 EV6 Bus ..................................82 FCC DoC (Declaration of Conformity)..........................82 FC-PGA (Flip Chip-Pin Grid Array) ..........................82 Flash ROM ..................................82 FSB (Front Side Bus) Clock............................83 C Bus ..................................83 IEEE 1394 ..................................83 Parity Bit..................................84 PBSRAM (Pipelined Burst SRAM) ..........................84 PC-100 DIMM ................................84 PC-133 DIMM ................................84 PC-1600 or PC-2100 DDR DRAM ..........................84 PCI (Peripheral Component Interface) Bus........................85 PDF Format ...................................85...
- Page 7 Shadow E PROM ................................86 SIMM (Single In Line Memory Module) ..........................87 SMBus (System Management Bus) ..........................87 SPD (Serial Presence Detect) ............................87 Ultra DMA ..................................88 USB (Universal Serial Bus)............................88 VCM (Virtual Channel Memory) .............................89 ZIP file ...................................89 Troubleshooting ...........................90 Technical Support........................94 Product Registration........................97 How to Contact Us........................98...
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Page 8: Ax4T Ii
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
Further flexibility can be achieved by taking advantage of the Communication and Network Riser (CNR) card option that allows audio, modem, and/or LAN configuration on a single baseboard design. Besides, the AX4T II has an AC97 CODEC chipset onboard for provides high performance and magic surround stereo sound to let... -
Page 11: Feature Highlight
The AGP video cards support data transfer rate up to 1066MB/s. As AX4T II motherboard includes one AGP Pro expansion slot for a bus mastering AGP graphic card, for AD and SBA signaling, AX4T II can support AGP 4X mode. - Page 12 USB interface devices such as mouse, keyboard, modem, scanner, etc. Power Management/Plug and Play AX4T II 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,...
- Page 13 S3), STD (Suspend to Disk, S4), WOM (Wake On Modem), WOL (Wake On LAN) features. Super Multi-I/O AX4T II provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART2 can also be directed from COM2 to the Infrared Module for the wireless connections.
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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 MODEM-CN Connector Front Audio Connector CD-IN Connector PC99 Colored Back Panel with 10/100Mbps Ethernet RJ45 Connector(Optional) 4Mbit Flash ROM BIOS Resettale Fuse IrDA Connector 4-pin 12V ATX Power Connector CNR Expansion Slot CPU Fan Connector 478-pin CPU socket with 32-bit PCI Expansion Slot x5 Voltage and Frequency Auto-detection that supports... -
Page 16: Block Diagram
PC-600/800 Direct RDRAM Up to 2GB RIMM Socket x2 RIMM Socket x2 Dual Channel RDRAM data transferring rate up to 3.2GB/s 32-bit PCI Slot x5 PCI Bus data 33/66100 400MHz System transferring rate up to 133MB/s Primary Channel IDE Drive x4 Secondary Channel AC97... -
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”. Owing to all of AOpen motherboards include many amazing and powerful features, but in some situations, these powerful features are not used to every user. Hence, we make some key features change to optional for you 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 pins 1 &... -
Page 20: Cpu Installation
® ® This motherboard supports Intel Pentium 4 1.30~1.50GHz+ Socket 478 series CPU. Please follow the step as below to finish CPU installation. 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 1. - Page 21 3. Press down the CPU socket level 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.
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Page 22: 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 23 This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches are needed. BIOS Setup > Frequency/Voltage Control > CPU Clock Ratio CPU Ratio 8x, 9x, 10x, 11x, ……, 22x, 23x CPU FSB 100-180MHz by 1MHz stepping ®...
- Page 24 Note: This motherboard support CPU Core Frequency = CPU Clock * 4 * CPU Ratio auto-detection function. Hence, you Clock = CPU Bus Clock / Clock Ratio don’t need to setup the CPU frequency by manual. Clock = PCI Clock x 2 CPU Core FSB Clock Ratio...
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Page 25: Cpu And Housing 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 FAN2 or FAN3 (without H/W monitoring) connector. CPU Fan Connector +12V SENSOR FAN3 Connector +12V Note: Some CPU fans do not have sensor pin, so that cannot support... - Page 26 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 27: Rimm Sockets
RDRAM speed automatically while system is in POST, but it still allows you to select the RDRAM type manually by BIOS setup program. Note: Based on Intel 850 chipset specification, AX4T II has dual memory channel. Please note that when you insert RIMM modules, you have to insert them into RIMM 1 and 4, and have terminators inserted into RIMM 2 and 3. - Page 28 Pictures below are Direct RDRAM memory module and RIMM terminator (also called C-RIMM). Please do not forget to insert the RIMM terminator into the proper RIMM socket, otherwise the system cannot be booted. DRDRAM RIMM Module RIMM Terminator...
- Page 29 Please follow the procedure as shown below to finish memory installation. Make sure the RIMM module’s pin face down and match the socket’s size as depicted below. 60 pins 88 pins Insert the module straight down to the RIMM slot with both hands and press down firmly until the RIMM module is securely in place.
- Page 30 Repeat step 2 to finish additional RIMM & C-RIMM modules installation. Direct RDRAM Module C-RIMM Module Note: Please do not forget to install the C-RIMM modules into the proper RIMM slots. Note: Pictures shown here are for reference only.
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Page 31: Front Panel Connector
Attach the power LED, EMPI, 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 as shown below. 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. Power Connector PW-OK +3.3V... -
Page 33: I O N L I N E M A N U A L
A traditional ATX system should remain at power off stage when AC power resumes from power failure. This design is inconvenient for a network server or workstation, without an UPS, that needs to keep power-on. This motherboard implements an AC Power Auto Recovery function to solve this problem. -
Page 34: Ide, Floppy And Ide Raid (Optional) Connector
Connect 34-pin floppy cable and 40-pin, 80-wire IDE cable to floppy connector FDC and IDE / IDE RAID connector. Be careful of the pin1 orientation. Wrong orientation may cause system damage. RAID IDE 2 RAID IDE 2 Slave (4th) Master (3rd) RAID IDE 1 RAID IDE 1 Master (1st) - 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 together, the two devices on each channel must be set differently to Master and Slave mode.
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Page 36: Jp7 Raid Select Jumper (Optional)
This jumper allows you to select the Raid function by adjusting the position of its yellow cap. Pin 1 JP7 Enable/Disable Raid Jumper Other IDE Raid... -
Page 37: 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, UART2 Mode, make sure to have the correct orientation when you plug in the IrDA connector. -
Page 38: Agp (Accelerated Graphic Port) Pro Expansion Slot
AX4T II provides an Pro slot. The AGP Pro is a bus interface targeted for high-performance 3D graphic. Recently, there are more memory modules on the AGP card. Hence, the AGP card needs more power to drive these chips. The AGP Pro interface has more power pins to provide more power for the card. -
Page 39: 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 40: Support Intel ® Pro/100 Network Connection (Optional)
® ® This motherboard has a fast Ethernet controller on chip. On the strength of LAN chip onboard, it provides 10/100M bps Ethernet for office and home use, the Ethernet connector is located on top of USB connectors. -
Page 41: Pc99 Color Coded Back Panel
The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, COM1 and COM2, Printer, RJ45 LAN (optional), four USBs, AC97 sound and game ports. The view angle of drawing shown here is from the back panel of the housing. RJ45 10/100Mbps SPP/EPP/ECP Parallel Port MIDI/Game Port PS/2 Mouse... -
Page 42: Support 2 Nd Usb Port
This motherboard provides 4 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 others USB connectors to the back plane or front panel of chassis. -
Page 43: Chassis Intrusion Sensor
The “CASE OPEN” header provides chassis intrusion-monitoring function. This function will log an event in the system BIOS when this header is connected. You can use the 2-pin chassis intrusion sensor to connect with this header, and enable the chassis monitoring function of system BIOS. SENSOR Chassis Intrusion Sensor Connector... -
Page 44: Cd Audio Connector
This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound. CD-IN... -
Page 45: 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 46: Front Audio Connector
If the housing has been design with an audio port on the front panel, you’ll be able to connect onboard audio to front panel through this connector. AUDIO Connector AUD_FPOUT_R AUD_MIC_BIAS HP_ON AUD_MIC AUD_FPOUT_ AUD_RET_L AUD_GND AUD_VCC AUD_RET_R... -
Page 47: 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 48: 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 49: Hardware Monitoring
CPU temperature. If any of these systems’ status go 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 50: 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 (did the job to protect motherboard), user still cannot replace it and the motherboard is still malfunction. With expensive Resettable Fuse, the motherboard can back to normal function after fuse did the protection job. -
Page 51: Low Esr Capacitor
A group of large capacitors that meet the requirements of today’s high performance motherboard design. The theory behind this is long transmission lines have considerable inductance and capacitance as well as resistance. When a current flows through the line, inductance and capacitance have the effect of varying the voltage on the line as the current varies. Thus the supply voltage varies with the load. - Page 52 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 53: 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 54: I O N L I N E M A N U A L
Cool down CPU and Chipset is important for system reliability. Aluminum heat sink provides better heat consumption especially when you are trying to overclock. -
Page 55: 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 56: 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 57: Eliminate "?" Mark From Windows 95/98
“ ” “ ” Windows 95/98 cannot recognize this chipset, because it was released before the Intel 850 chipset. You can install the Intel INF Update Utility from the Bonus Pack CD disc auto-run menu to eliminate the “?” marks. -
Page 58: 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 59: Installing Onboard Lan Driver (Optional)
Choose “Specify Location”, and then type full path of driver location in the text box. Or you can choose “Browse” button for specify driver’s location. 10. Insert the AOpen Bonus Pack CD into the CD-ROM. 11. Press the “Next” button. A message informing you that system has found “Intel (R) PRO/100 VE Network Connection”... -
Page 60: Installing Onboard Sound Driver
This motherboard comes with an RealTek ALC201 chip. You can find the audio driver from the Bonus Pack CD disc auto-run menu. -
Page 61: Installing Hardware Monitoring Utility
You can install Hardware Monitoring Utility to monitor CPU temperature, fans and system voltage. The hardware monitoring function is automatically implemented by the BIOS and utility software. No hardware installation is needed. To install the software, double click “Setup.exe”. The driver will be copied into Windows directory and an entry of “Hardware Monitor” in the start menu will be created. -
Page 62: 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 63: 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 64 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 65 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 66: 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 67 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 VIA 4 in 1 Driver must have been installed properly. Procedures Changed the following BIOS settings. BIOS Setup >...
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Page 68: Award Bios
BIOS provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports. Most BIOS setting of AX4T II 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 69: 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 70: 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 71 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 72: 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. De l 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 73: 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 74 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, AX4T2102.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 75: 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 76: 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 77: 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... -
Page 78: 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 79: 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 80: 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 81: 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 82: 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 83: 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 84: Parity Bit
The parity mode uses 1 parity bit for each byte, normally it is even parity mode, that is, each time the memory data is updated, parity bit will be adjusted to have even count "1" for each byte. When next time, if memory is read with odd number of "1", the parity error is occurred and this is called single bit error detection. -
Page 85: Pci (Peripheral Component Interface) Bus
Bus for the internal connection of peripheral devices, high-speed data channel between the computer and expansion card. 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 86: Rdram (Rambus 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 E PROM operation, AOpen motherboard uses Shadow E... -
Page 87: Simm (Single In Line Memory Module)
SIMM socket is only 72-pin, and is only single side. The golden finger signals on each side of PCB are identical. That is why it was called Single In Line. SIMM is made by FPM or DRAM and supports 32-bit data. SIMM had been phased out on current motherboard design. -
Page 88: Ultra Dma
Ultra DMA (or, more accurately, Ultra DMA/33) is a protocol for transferring data between a hard disk drive through the computer’s data path (or bus) to the computer’s random access memory (RAM). The Ultra DMA/33 protocol transfers data in burst mode at a rate of 33.3MB/s, twice as fast as the previous Direct Access Memory (DMA) interface. -
Page 89: Vcm (Virtual Channel Memory)
NEC’s Virtual Channel Memory (VCM) is a new DRAM core architecture that dramatically improves the memory system’s ability to service multimedia requirements. VCM increases memory bus efficiency and performance of any DRAM technology by providing a set of fast static registers between the memory core and I/O pins. Using VCM technology results in reduced data access latency and reduced power consumption. -
Page 90: 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 Make sure if all jumper settings are correct. - Page 91 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 92 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 93 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 94: 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 95 News Group: Your problem probably had been answered by our support engineer or professional users on the news group. http://www.aopen.com.tw/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 96 Model name and BIOS version can be found on upper left corner of first boot screen (POST screen). For example: AX4T II R1.00 Oct. 15. 2000 AOpen Inc. Award Plug and Play BIOS Extension v1.0A Copyright © 1998, Award Software, Inc. AX4T II is model name of motherboard, R1.00 is BIOS version.
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Page 97: 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 98: 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 Inc. AOpen Computer b.v. AOpen America Inc. Tel: 886-2-2696-1333 Tel: 31-73-645-9516 Tel: 1-510-498-8928 Fax: 886-2-8691-2233 Fax: 31-73-645-9604...