AOpen AX6BC User Manual

AOpen AX6BC User Manual

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AX6BC
User's Guide
Printed in Taiwan
PART NO.: 49.87822.081
DOC. NO.: AX6BC-1-E9904E

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Summary of Contents for AOpen AX6BC

  • Page 1 AX6BC User's Guide Printed in Taiwan PART NO.: 49.87822.081 DOC. NO.: AX6BC-1-E9904E...
  • Page 2 AX6BC Mainboard User's Guide Document Number : AX6BC-1-E9811D Model and revision : For AX6BC rev 1.xx Manual version : English, rev D Release Date : Nov 23, 1998 More help for latest information: Taiwan http://www.aopen.com.tw http://www.aopen-usa.com http://www.aopenusa.om http://www.aopenamerica.com Europe http://www.aopen.nl...
  • Page 3 Copyright Copyright © 1998 by this company. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, manual or otherwise, without the prior written permission of this company.
  • Page 4 Disclaimer This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Any software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not this company, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect...
  • Page 5: Declaration Of Conformity

    Type of Product : Intel Pentium II Micro ATX Motherboard Chipset(s) : Intel 82440BX AX6BC Test To Comply With FCC Standards FOR HOME OR OFFICE USE The limits of FCC Part 15 Class B are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 6: Overview

    Organization Chapter 1, Overview, covers the introduction and specifications of the system board and special features. Chapter 2, Hardware Installation, describes hardware jumpers, connectors and memory configuration. There are user friendly drawings to locate jumper and connector. Chapter 3, AWARD BIOS, explains the system BIOS and tells how to configure the system by setting the BIOS parameters.
  • Page 7 Conventions The following conventions are used in this manual: Text entered user, Represent text input by the user, default default settings, settings and recommended selections recommended selections <Enter>, <Tab>,<Ctl>, <Alt>, Represent the actual keys that you <Ins>, <Del>, etc have to press on the keyboard. Note: Gives bits and pieces of additional information related to the current topic.
  • Page 8: Table Of Contents

    CONTENTS CHAPTER 1 OVERVIEW 1.1 SPECIFICATIONS ..............4 1.2 OVERCLOCKING ..............6 1.3 SUSPEND TO HARD DRIVE..........9 1.4 ZERO VOLTAGE MODEM WAKE UP......12 1.5 SYSTEM VOLTAGE MONITORING ........14 1.6 FAN MONITORING .............14 1.7 CPU THERMAL PROTECTION.........15 1.8 MULTI-LANGUAGE BIOS..........15 1.9 BATTERY-LESS DESIGN............16 1.10 SOUND BLASTER LINK ...........16 CHAPTER 2 HARDWARE INSTALLATION 2.1 JUMPER AND CONNECTOR LOCATIONS ......2...
  • Page 9 2.3.12 Panel Connector ...........14 2.3.13 IrDA Connector .............15 2.3.14 Modem Wake-up Connector.........16 2.3.15 LAN Wake-up Connector........16 2.3.16 Sound Blaster LINK ..........17 2.4 CONFIGURING THE SYSTEM MEMORY ......18 CHAPTER 3 AWARD BIOS 3.1 ENTERING THE AWARD BIOS SETUP MENU ....2 3.2 STANDARD CMOS SETUP ...........3 3.3 BIOS FEATURES SETUP............6 3.4 CHIPSET FEATURES SETUP..........11 3.5 POWER MANAGEMENT SETUP ........16...
  • Page 10: Chapter 1 Overview

    768MB. Since the cache is on the Pentium II CPU card (connector SLOT1), there is no second level cache onboard Also, AX6BC uses 2M bit Flash ROM BIOS to reserve for future new functions.
  • Page 11 The most important break through is not only external box modem but also internal modem card can be used to support Modem Wake Up. The AX6BC and MP56 internal modem card implement special circuit (patent applied) to make sure the modem card work properly without any power.
  • Page 12 Full-range CPU core voltage This motherboard supports the CPU core voltage from 1.3V to 3.5V, that can be applied to various CPU type in future. FCC DoC certificate AX6BC has passed FCC DoC test. The radiation is very low, you can use any kind of housing.
  • Page 13: Specifications

    Overview Specifications Form Factor Board Size 305 mm x 202 mm Intel Pentium II Processor SDRAM or Registered SDRAM, 168-pin DIMM x3, System Memory maximum 768MB. On the CPU card (Slot1 connector) Second-level Cache Chipset Intel 82440BX AGPset ISA x2, PCI x5 and AGP x1 Expansion Slots Two serial ports UART 16C550 compatible, and the Serial Port...
  • Page 14 Zero Voltage Modem Special circuit (patent applied) to support modem ring Wake Up wake up by external box modem or internal AOpen F56/MP56 modem card. By using a network card that supports this feature and a LAN Wake Up network management software, you can wake up a system through a local area network.
  • Page 15: Overclocking

    133.3MHz is achievable when proper setting and quality components were presented, we feel quite comfortable overclocking to 133.3MHz. Not only that, AX6BC has full-range (CPU core voltage) settings and up to 8x CPU ratio, that supports almost all of Pentium II CPUs in the future and provides flexibility for overclockers.
  • Page 16 Overview VGA Card VGA model/ Vendor Chipset model Driver Asus S3 –Virge/dx(86c375) Asus VENUS T-775 S3 Trio 64V2(86C775) Venus VENUS 67TV Trident 9685 Venus GALAXIE Trident 9685 (PS-68) Venus MACH 64 210888GX00 Win95 default MATROX MY220P/4+ MATROX MGA-MIL/4+ MATROX MIL2P/4+ Hard Disk: Vender Model...
  • Page 17 Overview AX6BC Overclocking Settings The following table lists the overclocking settings in AOpen’s lab for your reference. Pentium II 350 DRAM ISEC KOREA 752 KM48S8030BT-GH 32MB IBM DHEA-34330 ATI 3D RAGE PRO AGP 2X Windows 95 OSR2 BIOS Load BIOS Turbo Default 100 MHz * 4 = 400 MHz (OK) 112 MHz * 3.5 = 392 MHz (OK)
  • Page 18: Suspend To Hard Drive

    If your memory is 16MB, normally, you need to reserve at least 16MB HDD space to save your memory image. Note that you have to use VESA compatible PCI VGA (AOpen PV70/PT70), Sound Blaster compatible sound card and sound driver that supports APM (AOpen AW32/AW35) for Suspend to Hard Drive to work properly.
  • Page 19 Overview Option2: Use /partition switch (applied to FAT16/FAT32 file system): To create a separate partition for Suspend to Hard Drive, please make sure you have reserved a free partition. We suggest you reserve the free partition which space is appropriate for your future memory expansion. For example, if you have 32MB of system memory and 4MB of VGA memory currently, but you plan to upgrade system memory to 64MB in the near future, then you may reserve a 68MB (64MB+4MB) space by using a disk...
  • Page 20 Overview Tip: The following VGA cards have been tested & recognized as VESA compatible VGA device. AOpen PV90 (Trident 9680) AOpen PT60 (S3 Virge/BIOS R1.00-01) AOpen PV60 (S3 Tiro64V+) AOpen PT70 (S3 Virge/DX) ProLink Trident GD-5440 ProLink Cirrus GD-5430 ProLink Cirrus GD-5446...
  • Page 21: Zero Voltage Modem Wake Up

    Modem Wake Up, but if you use external modem, you have to keep the box modem always power-on. AOpen AX6BC and internal modem card implement special circuit (patent applied) and make sure the modem card works properly without any power. We recommend you choose AOpen modem card (MP56) for Modem Wake Up applications.
  • Page 22 Overview For Internal Modem Card (AOpen MP56): 1. Go into BIOS setup , Power Management Modem Wake Up, select Enable. 2. Setup your application, put into Windows 95 StartUp or use Suspend to Hard Drive function. 3. Turn system power off by soft power switch.
  • Page 23: System Voltage Monitoring

    Overview System Voltage Monitoring This motherboard implements a voltage monitoring system. As you turn on your system, this smart design will continue to monitor your system working voltage. If any of the system voltage is over the component's standard. There will be alarm through application software such as Hardware Monitor utility for a warning to user.
  • Page 24: Cpu Thermal Protection

    BIOS. You may download and reflash a specified BIOS version from AOpen 's web site (For example, Chinese). After entering BIOS Setup, you can switch to another language by pressing F9.
  • Page 25: Battery-Less Design

    EEPROM, only the system clock needed to be re-set to current date/time. For the convenience of end user, AX6BC still shipped with one Lithium (CR- 2032) battery. If you prefer to use battery, you can still Insert it into battery socket.
  • Page 26: Chapter 2 Hardware Installation

    Chapter 2 Hardware Installation This chapter gives you a step-by-step procedure on how to install your system. Follow each section accordingly. Caution: 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.
  • Page 27: Jumper And Connector Locations

    Hardware Installation 2.1 Jumper and Connector Locations The following figure shows the locations of the jumpers and connectors on the system board: IrDA JP14 Modem-WKUP LAN Wakeup BIOS COM2 COM1 PRINTER PS/2 CPU SLOT 1 CPU FAN SB-Link DIMM1 DIMM2 DIMM3 JP23 JP25...
  • Page 28 Hardware Installation Jumpers: JP14: Clear CMOS JP23: AGP Turbo JP25: APAR Connectors: PS2: PS/2 mouse connector PS/2 keyboard connector COM1: COM1 connector COM2: COM2 connector PRINTER: Printer connector PWR2: ATX power connector USB: USB connector FDC: Floppy drive connector IDE1: IDE1 primary channel IDE2: IDE2 secondary channel...
  • Page 29: Jumpers

    Hardware Installation 2.2 Jumpers With the help of Pentium II VID signal and SMbus, this motherboard is jumper- less design. 2.2.1 Selecting the CPU Frequency Pentium II VID signal and SMbus clock generator provide CPU voltage auto- detection and allow user to set CPU frequency through CMOS setup, no jumper or switch is needed.
  • Page 30: Setting The Cpu Voltage

    Hardware Installation 2.2.2 Setting the CPU Voltage This motherboard supports Pentium II VID function, the CPU core voltage is automatically detected, the range is from 1.3V to 3.5V. 2.2.3 Clearing the CMOS JP14 Clear CMOS You need to clear the CMOS if you forget your system password.
  • Page 31: Agp Ratio

    JP23 AGP Ratio improve system performance, AX6BC implemented this jumper for AGP to synchronize the Auto (default) CPU 100Mhz (or above) external frequency. We recommend you choose a better AGP card for overclocking. Some AGP cards can not take 100MHz bus frequency and may cause overclocking failure.
  • Page 32: Apar

    Hardware Installation 2.2.5 APAR JP25 APAR A traditional ATX system should remain at power off stage when AC power resumes from power Disable failure. This design is inconvenient for a network Enable (AC Power server or workstation, without an UPS, that Auto Recovery) needs to keep power-on.
  • Page 33: Connectors

    Hardware Installation 2.3 Connectors 2.3.1 Power Cable The ATX power supply uses 20-pin connector shown below. Make sure you plug in the right direction. Caution: Make sure that the power supply is off before connecting or disconnecting the power cable. 3.3V 5V SB 3.3V...
  • Page 34: Fan

    Hardware Installation 2.3.3 Fan Plug in the fan cable to the 3-pin fan connector onboard. The fan connector is marked CPU FAN and FAN on the system board. SENSE +12V CPU FAN Note: Attach fan cable to either CPU FAN connector or FAN connector.
  • Page 35: Keyboard

    Hardware Installation 2.3.5 Keyboard The onboard PS/2 keyboard connector is a 6-pin Mini-Din connector marked KB2. The view angle of drawing shown here is from back panel of the housing. PS/2 KB 2.3.6 Serial Devices (COM1/COM2) The onboard serial connectors are 9-pin D-type connector on the back panel of mainboard.
  • Page 36: Printer

    Hardware Installation 2.3.7 Printer The onboard printer connector is a 25-pin D-type connector marked PRINTER. The view angle of drawing shown here is from back panel of the housing. PRINTER 2.3.8 USB Device You can attach USB devices to the USB connector. The motherboard contains two USB connectors, which are marked as USB.
  • Page 37: Floppy Drive

    Hardware Installation 2.3.9 Floppy Drive Connect the 34-pin floppy drive cable to the floppy drive connector marked as FDC on the system board. 2.3.10 IDE Hard Disk and CD ROM This mainboard supports two 40 pin IDE connectors marked as IDE1 and IDE2.
  • Page 38: Hard Disk Led

    Hardware Installation Caution: The specification of IDE cable is maximum 46cm (18 inches), make sure your cable does not excess this length. Caution: For better signal quality, it is recommended to set far end side device to master mode follow the suggested sequence to install your new device .
  • Page 39: Panel Connector

    Hardware Installation 2.3.12 Panel Connector The Panel (multifunction) connector is a 20-pin connector marked as PANEL on the board. Attach the power LED, KEYLOCK keylock, speaker, and reset switch to SLEEP LED POWER LED the corresponding pins as shown in the figure.
  • Page 40: Irda Connector

    Hardware Installation 2.3.13 IrDA Connector The IrDA connector can be configured to support wireless infrared module, with this module and application software such as Laplink or Win95 Direct Cable Connection, user can transfer files to or from laptops, notebooks, PDA and printers. This connector supports HPSIR (115.2Kbps, 2 meters), ASK-IR (56Kbps) and Fast IR (4Mbps, 2 meters).
  • Page 41: Modem Wake-Up Connector

    Internal Modem card consumes no power when system RING power is off, it is recommended to use Internal Modem. To use AOpen MP56, connect 4-pin cable from RING connector of MP56 to MODEM-WKUP connector on the mainboard. 1 2 3 4 MODEM-WKUP 2.3.15 LAN Wake-up Connector...
  • Page 42: Sound Blaster Link

    Hardware Installation 2.3.16 Sound Blaster LINK Description SB-LINK is used to connect Creative PCI sound card. If you have a Creative PCI sound card GNT# installed, it is necessary to link the card to this connector for compatibility issue under DOS environment.
  • Page 43: Configuring The System Memory

    Hardware Installation 2.4 Configuring the System Memory The DIMM types supported are SDRAM (Synchronous DRAM) Registered SDRAM. This mainboard has three 168 pin DIMM sockets (Dual-in-line Memory Module) that allow you to install system memory up to 768MB. But note that mixing SDRAM and Registered SDRAM is not allowed, you can install one of the DRAM types only.
  • Page 44 IV. 2-clock and 4-clock signals: Although both of 2-clock and 4-clock signals are supported by AX6BC, we strongly recommend you to choose 4-clock SDRAM in consideration of reliability. Tip: To identify 2-clock and 4-clock SDRAM, you may check if there are traces connected to golden finger pin 79 and pin 163 of the SDRAM.
  • Page 45 16M by 4 16Mx64 128MB For getting the best performance and stability under 100MHz or above external clock, we strongly recommend you use PC 100 SDRAM. The PC 100 SDRAM that AOpen had tested are listed below. Size Vendor Model Single/Double...
  • Page 46 Hardware Installation Size Vendor Model Single/Double Chip Count D4516821AG5-A10-7JF KM48S2020CT-GH GM72V661641CT7J Fujitsu 81F64842B-103FN Mitsubishi M5M4V64S30ATP-10 D4564841G5-A10-9JF KM48S8030BT-GH Toshiba TC59S6408FTL-80H GM72V661641CT7J GM72V66841CT7J 128M GM72V66841CT7J 128M Simens HYS72V16220GU Memory error checking is supported by parity check. To use parity check you need 72 bit DIMM (64+8 bit parity), which are automatically detected by BIOS. Warning: The driving capability of new generation chipset is limited because the lack of memory buffer (to improve performance).
  • Page 47: Chapter 3 Award Bios

    Chapter 3 Award BIOS This chapter tells how to configure the system parameters. You may update your BIOS via AWARD Flash Utility. Important: Because the BIOS code is the most often changed part of the mainboard design, the BIOS information contained this chapter...
  • Page 48: Entering The Award Bios Setup Menu

    AWARD BIOS Entering the Award BIOS Setup Menu The BIOS setup utility is a segment of codes/routines residing in the BIOS Flash ROM. This routine allows you to configure the system parameters and save the configuration into the 128 byte CMOS area, (normally in the RTC chip or directly in the main chipset).
  • Page 49: Standard Cmos Setup

    AWARD BIOS Standard CMOS Setup The "Standard CMOS Setup" sets the basic system parameters such as the date, time, and the hard disk type. Use the arrow keys to highlight an item and to select the value for each item. Standard CMOS Date To set the date, highlight the Date parameter.
  • Page 50 AWARD BIOS Standard CMOS Primary Master Type Standard CMOS Primary Slave Type Standard CMOS Secondary Master Type Standard CMOS Secondary Slave Type Type This item lets you select the IDE hard disk parameters that your system supports. These parameters are Size, Auto Number of Cylinder, Number of Head, Start Cylinder for User...
  • Page 51 AWARD BIOS Standard CMOS Drive A Standard CMOS Drive B These items select floppy drive type. The available settings Drive A and types supported by the mainboard are listed on the left. None 360KB 5.25" 1.2MB 5.25" 720KB 3.5" 1.44MB 3.5" 2.88MB 3.5"...
  • Page 52: Bios Features Setup

    AWARD BIOS BIOS Features Setup This screen appears when you select the option "BIOS Features Setup" from the main menu. BIOS Features Virus Warning Set this parameter to Enabled to activate the warning Virus Warning message. This feature protects the boot sector and partition Enabled table of your hard disk from virus intrusion.
  • Page 53 AWARD BIOS BIOS Features External Cache External Cache Enabling this parameter activates the secondary cache (currently, PBSRAM cache). Disabling the parameter Enabled slows down the system. Therefore, we recommend that Disabled you leave it enabled unless you are troubleshooting a problem.
  • Page 54 AWARD BIOS BIOS Features Swap Floppy Drive Swap Floppy Drive This item allows you to swap floppy drives. example, if you have two floppy drives (A and B), you Enabled can assign the first drive as drive B and the second Disabled drive as drive A or vice-versa.
  • Page 55 AWARD BIOS BIOS Features Typematic Delay (Msec) Typematic Delay This parameter allows you to control the delay time between the first and the second keystroke (where the repeated keystrokes begin). The typematic delay settings are 250, 500, 750, and 1000 msec. 1000 BIOS Features Security Option...
  • Page 56 Note: The F000 and E000 segments are always shadowed because BIOS code occupies these areas. BIOS Features Show Logo On Screen Show Logo On This item lets you decide if AOpen logo will appear in Screen the POST screen. Enabled Disabled 3-10...
  • Page 57: Chipset Features Setup

    AWARD BIOS Chipset Features Setup The "Chipset Features Setup" includes settings for the chipset dependent features. These features are related to system performance. Caution: Make sure you fully understand the items contained in this menu before you try to change anything. You may change the parameter settings...
  • Page 58 AWARD BIOS Chipset Features SDRAM CAS Latency Chipset Features SDRAM RAS# to CAS# Delay SDRAM CAS These are timing of SDRAM CAS Latency and RAS Latency to CAS Delay, calculated by clocks. They are important parameters affects SDRAM performance, default is Auto. If you install DIMMs with SPD and set this item to Auto, BIOS will automatically detect your Auto DIMMs and then set to a appropriate timing;...
  • Page 59 AWARD BIOS Chipset Features 8 Bit I/O Recovery Time 8 Bit I/O Recovery For some old I/O chips, after the execution of an I/O Time command, the device requires a certain amount of time (recovery time) before the execution of the next I/O command.
  • Page 60 AWARD BIOS Chipset Features Delayed Transaction Delayed Transaction This item lets you control the Delayed Transaction function of the PIIX4E chipset (Intel PCI to ISA Enabled bridge). This function is used to meet latency of PCI Disabled cycles to or from ISA bus. Try to enable or disable it, if you have ISA card compatibility problem.
  • Page 61 AWARD BIOS Chipset Features System Frequency System Frequency This item lets you set CPU frequency. If you want to set other value, please choose "Manual " to set CPU 233 MHz clock frequency and clock ratio manually. 266 MHz 300 MHz 333 MHz 350 MHz 400 MHz...
  • Page 62: Power Management Setup

    AWARD BIOS Power Management Setup The Power Management Setup screen enables you to control the mainboard green features. See the following screen. Power Management Power Management Power Management This function allows you to set the default parameters of power-saving modes. Set to Disable to turn off Max Saving power management function.
  • Page 63: Power Management

    AWARD BIOS Power Management PM Controlled by APM PM Controlled by If "Max Saving" is selected, you can turn on this item, transfer power management control (Advanced Power Management) and enhance power saving function. For example, stop CPU internal clock. Power Management Video Off Method Video Off Method...
  • Page 64 AWARD BIOS Power Management Doze Mode Doze Mode This item lets you set the period of time after which the system enters into Doze mode. The system Disabled activity (or event) is detected by monitoring the IRQ 1 Min signals or other events (such as I/O). 2 Min 4 Min 8 Min...
  • Page 65 AWARD BIOS Power Management HDD Power Down HDD Power Down This option lets you specify the IDE HDD idle time before the device enters the power down state. This Disabled item is independent from the power states previously 1 Min described in this section (Standby and Suspend).
  • Page 66 AWARD BIOS Power Management VGA Active Monitor VGA Active Monitor To enable or disable the detection of VGA activity for power down state transition. Enabled Disabled Power Management Soft-Off by PWR-BTTN Soft-Off by PWR- This is a specification of ACPI and supported by BTTN hardware.
  • Page 67 AWARD BIOS Power Management WakeUp Time (hh:mm:ss) WakeUp Time This item is displayed when you enable the RTC (hh:mm:ss) Wake Up Timer option. Here you can specify what time you want to wake up the system. hh:mm:ss Power Management IRQ 8 Break Suspend IRQ 8 Break Suspend To enable or disable the detection of IRQ8 (RTC) event for power down state transition.
  • Page 68: Pnp/Pci Configuration Setup

    AWARD BIOS PNP/PCI Configuration Setup The PNP/PCI Configuration Setup allows you to configure the ISA and PCI devices installed in your system. The following screen appears if you select the option "PNP/PCI Configuration Setup" from the main menu. PNP/PCI Configuration PnP OS Installed PnP OS Installed Normally, the PnP resources are allocated by BIOS...
  • Page 69 AWARD BIOS PNP/PCI Configuration Resources Controlled By Resources Controlled Setting this option to Manual allows you to individually assign the IRQs and DMAs to the ISA and PCI devices. Set this to Auto to enable the auto- Auto configuration function. Manual PNP/PCI Configuration Reset Configuration Data...
  • Page 70 AWARD BIOS PNP/PCI Configuration DMA 0 PNP/PCI Configuration DMA 1 PNP/PCI Configuration DMA 3 PNP/PCI Configuration DMA 5 PNP/PCI Configuration DMA 6 PNP/PCI Configuration DMA 7 If your ISA card is not PnP compatible and requires a DMA 0 special DMA channel to support its function, set the Legacy ISA selected DMA channel to Legacy ISA.
  • Page 71 AWARD BIOS PCI Slot Location 1 Location 2 Location 3 Location 4 (pin A6) (pin B7) (pin A7) (pin B8) Slot 1 INTA INTB INTC INTD Slot 2 INTB INTC INTD INTA Slot 3 INTC INTD INTA INTB Slot 4 INTD INTA INTB...
  • Page 72 AWARD BIOS PNP/PCI Configuration PCI Slot1 IRQ (Right) PNP/PCI Configuration PCI Slot2 IRQ PNP/PCI Configuration PCI Slot3 IRQ PNP/PCI Configuration PCI Slot4 IRQ (Left) PCI Slot1 IRQ This item is reserved for engineering purpose to let you assign an IRQ manually to the add-on card on each PCI slot.
  • Page 73: Load Setup Defaults

    The "Load Turbo Defaults" option gives better performance than Optimal values. However, Turbo values may not be the best setting of this mainboard but these values are qualified by the AOpen RD and QA department as the reliable settings especially if you have limited loading of add-on card and memory size (for example, a system that contains only a VGA/Sound card and two DIMMs).
  • Page 74: Integrated Peripherals

    AWARD BIOS Integrated Peripherals The following screen appears if you select the option "Integrated Peripherals" from the main menu. This option allows you to configure the I/O features. Integrated Peripherals IDE HDD Block Mode IDE HDD Block This feature enhances disk performance by allowing Mode multisector data transfers and eliminates the interrupt handling time for each sector.
  • Page 75 AWARD BIOS Integrated Peripherals IDE Primary Master UDMA Integrated Peripherals IDE Primary Slave UDMA Integrated Peripherals IDE Secondary Master UDMA Integrated Peripherals IDE Secondary Slave UDMA IDE Primary Master This item allows you to set the Ultra DMA/33 mode UDMA supported by the hard disk drive connected to your primary IDE connector.
  • Page 76 AWARD BIOS Integrated Peripherals Onboard FDC Controller Onboard FDC Setting this parameter to Enabled allows you to Controller connect your floppy disk drives to the onboard floppy disk connector instead of a separate controller card. Enabled Change the setting to Disabled if you want to use a Disabled separate controller card.
  • Page 77 AWARD BIOS • Select this setting if you installed an Infrared module via IrDA connector (refer to section 2.3 "Connectors"). This FIR (Fast IR) setting allows infrared serial communication at a maximum baud rate of 4M baud. Integrated Peripherals RxD, TxD Active RxD, TxD Active This item is used to select RxD (Receive Data) and TxD (Transmit Data) mode for UART, for instance, IR...
  • Page 78: Password Setting

    AWARD BIOS 3.10 Password Setting Password prevents unauthorized use of your computer. If you set a password, the system prompts for the correct password before boot or access to Setup. To set a password: At the prompt, type your password. Your password can be up to 8 alphanumeric characters.
  • Page 79: Load Eeprom Default

    AWARD BIOS 3.13 Load EEPROM Default Except "Load Setup Default" and "Load Turbo Default", you may also use "Save EEPROM Default " to save your own settings into EEPROM, and reload by using this item. 3.14 Save EEPROM Default You may use this item to save your own settings into EEPROM. Then, if the data in CMOS is lost or you forget the previous settings, you may use "Load EEPROM Default "...
  • Page 80: Bios Flash Utility

    AWARD BIOS 3.17 BIOS Flash Utility AOpen Easy Flash is more user friendly than traditional flash method. The BIOS binary file and flash routine are combined together and you simply run a single file to complete the flash process. 1. Get new BIOS upgrade program from AOpen's web site. For example, AX6BC200.EXE.
  • Page 81: Appendix A Frequently Asked Question

    Q: How can I identify the model name & revision of the mainboard from PCB? A: The AOpen mainboard revision appears as REV:X.X on the PCB, usually it is under beneath of AOpen Logo & mainboard model name. For example, “AX6L REV:1.2”...
  • Page 82 (such as 3D video, 3D sound, video conference). The performance can be improved if applications use these instructions. All AOpen MBs have at least dual power onboard to support MMX. It is not necessary to have special chipset for MMX CPU.
  • Page 83 Frequently Asked Questions vendor or from OS (such as Win95). Be sure to turn off "USB Legacy Support" in BIOS "Chipset Setup" if you have another driver in your OS. Q: What is FCC DoC (Declaration of Conformity)? A: The DoC is new certification standard of FCC regulations. This new standard allows DIY component (such as mainboard) to apply DoC label separately without a shielding of housing.
  • Page 84 The ATX power specification does not mention anything about the power switch type. You can use toggle or momentary switch, note that ACPI specification requires momentary switch for power state control. All the AOpen ATX MBs support momentary switch and AX5T/AX5TC/AX6L/AX6LC/ AX6B/AX6BC support modem wakeup (Modem Ring-On).
  • Page 85: Frequently Asked Questions

    The AGP uses both rising and falling edge of the 66MHz clock and produces 66MHz x 4byte x 2 = 528MB/s data transfer rate. The AOpen AX6L/AX6LC/AX6B/AX6BC MB are designed to support AGP via the new Intel LX & BX chipset.
  • Page 86 Frequently Asked Questions Q: Why is there a resource conflict between my AGP VGA card & PCI-to-PCI bridge (or AGP bridge) within Device Manger under Windows'95? A: It is normal for AGP cards to conflict with the PCI standard PCI-to-PCI bridge (or AGP bridge).
  • Page 87 A: Even though your system will work fine with this "?" marks, we received many requests about how to eliminate it. AOpen software team spends few weeks to develop an utility AOchip.exe for the convenience of Win95 users. It is very user friendly and can be used on any TX, LX or BX chipset based motherboard, not limited to AOpen products.
  • Page 88 Microsoft USB supplement which will create "USB Supplement to OSR2" in the list of Add/Remove program tool under Control Panel. After above installation, please run AOchip.exe provided by AOpen to create USB Controller under Device Manager. If you are Win'95 OSR 2.1 or 2.5 user, only AOchip.exe installation is necessary.
  • Page 89 It is highly recommended to adopt "Resetable" fuse in order to fully support "Hot-Plug" feature on USB. Q: What is Multi-language BIOS? A: For giving AOpen 's worldwide users the best support, AOpen software team made every effort to overcome all difficulties and successfully develop a method to provide multi-language BIOS.
  • Page 90 Q: What is ADM (Advanced Desktop Manager)? A: This is a desktop client and server management software developed by AOpen. It is similar as Intel LDCM with some improvement. ADM is not only for corporate network management, it can also be used as system status monitoring utility, for example, CPU fan, thermal and system voltage monitoring.
  • Page 91 (the layout). The most accurate way is to use storage scope to measure the CPU voltage directly, but of course, it is difficult for end user to do so. AOpen design team follows Intel, AMD and Cyrix's design specification strictly, it is approved by Intel, AMD and Cyrix.
  • Page 92 Frequently Asked Questions Size Vendor Model Single/Double Chip Count Micron MT48LC2M8A1-08 Hyndai HY57V168010CTC-10 D4516821AG5-A10-7JF KM48S2020CT-GH 128M Simens HYS72V16220GU Q: What is the difference between 440LX and 440BX chipset? A: Following table lists the difference between 440LX and 440BX. Features 440LX 440BX 66MHz 100MHz...
  • Page 93: Appendix B Troubleshooting

    Taiwan http://www.aopen.com.tw http://www.aopen-usa.com http://www.aopenamerica.com Europe http://www.aopen.nl Important: Make sure that you have tried listed procedures in this appendix before you call your distributor. If the problem still exist, fill out the attached Technical Problem Report Form. Please write down your configuration and error symptoms as detailed as possible.
  • Page 94 Troubleshooting No display. Check all jumper settings to make sure that you have set the proper jumpers, especially those for CPU type, single/dual voltage (P54C/MMX), CPU frequency and ratio. Check the power cord or power switch of your system. The simple way to identify power failure is to check the CPU fan and the power supply fan.
  • Page 95 Troubleshooting There is display, but can 't boot. Check BIOS Setup if the HDD is set to LBA (more than 540MB) format. Load default setting. Boot system from floppy drive. If pass, the problem should be caused by the IDE cable or HDD itself. HDD Controller Fail, can't detect HDD.
  • Page 96 Troubleshooting Technical Problem Report Form Model Name: Serial Number: Name: Contact: TEL: FAX: Email Address: Error Symptom: BIOS: System Configuration: CPU: SIMM: (Please list model name and HDD: CDROM: version.) VGA: Sound: Modem: Others:...
  • Page 97: Appendix C Jumper Table Summary

    Appendix C Jumper Table Summary Selecting the CPU Frequency With the help of Pentium II VID signal and SMbus, this motherboard is jumper- less design. The CPU frequency selection is set by going into: BOIS Setup Chipset Features Setup CPU Clock Frequency (The possible setting is 66.8, 68.5, 75, 83.3, 100, 103, 112, 117, 124, 129, 133.3, 138, 143, 148 and 153 MHz) BOIS Setup...
  • Page 98: Clear Cmos

    Jumper Table Summary Selecting the CPU Voltage This motherboard supports Pentium II (Klamath) VID function, the CPU core voltage is automatically detected, the range is from 1.3V to 3.5V. Clear CMOS JP14 Clear CMOS Normal operation (default) Clear CMOS Tip: If your system hangs or fails to boot because of over- clocking, simply use <Home>...

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