Duron K7V266A User Manual

For amd athlon xp/ athlon/ duron cpus with ddr 266 memory atx form factor

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K7V266A
(VIA KT266A Chipset, Socket-462)
®
For AMD
Athlon XP/ Athlon/ Duron CPUs
With DDR 266 Memory
ATX Form Factor
Main Board
User's Manual
(Ver.:1.0)

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Summary of Contents for Duron K7V266A

  • Page 1 K7V266A (VIA KT266A Chipset, Socket-462) ® For AMD Athlon XP/ Athlon/ Duron CPUs With DDR 266 Memory ATX Form Factor Main Board User’s Manual (Ver.:1.0)
  • Page 2 Copyright Copyright©2001 by this company. No part of this document may be reproduced, transmitted, transcribed, stored in a retrievable system, or translated into any natural or computer language, in any form or by any means without prior written permission. This manual and the information contained here are protected by copyright.
  • Page 3 ® This manual is designed to provide information about the AMD Athlon XP/ Athlon/ Duron mainboard. Effort have been made to make this manual as accurate as possible, but no warranty or fitness is implied. All the information is provided on an 'as is' basis. The...
  • Page 4: Table Of Contents

    Table of Contents Chapter 1 Introduction…………………………………………1 Main Specifications……………………………………………………2 System Configuration……………………………………………..……4 Notice of Hardware Installation………….……………………..……5 Chapter 2 Installation……………….……………………….…6 Component Locations …………………..…………………………..…6 Layout Reference……………………………………………..………..7 Jumper Setting…………………………………………………………8 2-3-1 JP1: AC97 & MC97 Status Selector…………………………………8 2-3-2 JP2 & SW1: CPU Frequency Selector………………………………9 CPU Installation………………. ……………………………………10 2-3-1 CPU and System Cooling………………………….…………………13 Connectors………..……………………………………………………14...
  • Page 5 Chapter 4 The BIOS…..………………………………………28 Updating the BIOS……………………………………………………29 The CMOS Memory…………………………………………………30 The BIOS Setup Pages………………………………………………32 4-3-1 Standard CMOS Setup………………………………………………35 4-3-2 BIOS Features Setup…………………………………………………39 4-3-3 Chipset Features Setup………………………………………..……43 4-3-4 Integrated Peripherals………………………………………..……...48 4-3-5 Power Management Setup………………………………………….53 4-3-6 PNP/PCI Configuration Setup……………………………………….57 4-3-7 PC Health Status……………………………………………………59 4-3-8 Frequency/Voltage Control.…………………………………………60 4-3-9...
  • Page 6: Chapter 1 Introduction

    Chapter 1 Introduction Thank you for purchasing this high quality motherboard, we are confident that you will be able to use this motherboard to your full satisfaction. This manual is divided into 6 main sections, as described below: Introduction The introduction contains information on the main specifications for this motherboard, the package contents and cautionary notes.
  • Page 7: Main Specifications

    PCB layer: 4 layers Supported CPUs Can support the latest 200/ 266MB FSB Socket-462 AMD Athlon XP (up to 2000+)/ Athlon (up to 1.4GHz) or Duron (up to 1.2GHz) CPUs or higher speed. Chipset Northbridge The VIA KT266A system controller is a 200/ 266MHz System Bus. The DRAM controller supports DDR200/ DDR266 Double Data Rated (DDR) SDRAM;...
  • Page 8 CNR Slot A Communication Networking Riser (C.N.R.) slot can be fitted with CNR MODEM, or MODEM. USB interface With support for up to 6 USB ver 1.1 ports, four on-board, this motherboard provides ample USB expansion room. IDE interface This motherboard comes with an onboard PCI Bus Master IDE controller with two connectors that support four ATA66/ 33 devices on two channels.
  • Page 9: System Configuration

    1-2 System Configurations Below is the VIA KT266A chipset based system configuration: AMD Athlon XP/ Athlon/ Duron processor System Bus 3.2GB/s AGP4X (1.5V) AGP Slot or 1.06GB/s 3D Graphics KT266A Controller 2.1GB/sec 8-Bit Hub Interface 26MB/s 6 USB 1.1 Ports...
  • Page 10: Notice Of Hardware Installation

    1-3 Notice of Hardware Installation Before hardware installation, make sure you have checked the following things. A. Check the package If any of these items is missing or damaged, contact the dealer from whom you purchase. Leave this main board in its original package until you are ready to install it. In the package, there are: This motherboard 1 Manual...
  • Page 11: Chapter 2 Installation

    Chapter 2 Installation 2-1 Component Locations 1 FAN1 2 ATX Power Supply 3 VIA KT266A Chipset 4 CPU Socket-462 5 DIMM 6 IDE 7 VIA VT8233 8 BIOS 9 Floppy 10 Battery 1 2 3 11 FAN2 12 WOL1 13 WOM1 14 CNR Slot 15 PCI slot Set to "2-3"...
  • Page 12: Layout Reference

    2-2 Layout Reference PS/2 Mouse & K/B FAN1 Socket-462 COM1 COM2 LINE-OUT LINE-IN JP 2 MIC-IN AGP1 FAN2 PCI1 Sound Codec PCI2 USB2 VT 8233 PCI3 USB3 PCI4 IR 1 BIOS PCI5 JBAT1 FDD1 JP 1 PCI6 FAN2 WOM1 WOL1 SW 1 CNR1...
  • Page 13: Jumper Setting

    Jumper Setting User only needs to set JP2 and “DIP –Switch 5” of SW1 for CPU Front Side BUS speed selection, please refer to page-9. (No needs to set BIOS when install CPU). 2-3-1 JP1: AC97 & MC97 Status Selector JP1 is a 2-pin connector which provides AC97 &...
  • Page 14 2-3-2 JP2 & SW1: CPU Front Side Bus Selector JP2 is a 3-pin connector and SW1 is a 5-pin DIP switch, which provide CPU front Side Bus selector. Please select the right ratio according to your CPU and set details as below. JP2: CPU Front Side Bus speed Selector JP 2...
  • Page 15: Cpu Installation

    2-4 CPU Installation The first step in the installation of your CPU is the insertion of the CPU into the 462 pins CPU socket. Please follow the steps as outlined below carefully to avoid damage to the CPU. Avoid Static Electricity The AMD K7 processors and your motherboard contain sensitive electronic components that can be easily damaged by static electricity.
  • Page 16 If you have never installed a heatsink on an AMD Athlon XP/ Athlon or Duron processor before it may be difficult. We recommend you do a dry run a few times before doing the final installation. To allow you to do this read the following instructions.
  • Page 17 The following picture shows a side view of the heatsink with the retaining clip at the bottom of the heatsink. Make sure this retaining clip is at the bottom of the heatsink before trying to install it. The non-moveable end of the heatsink retaining clip installed on the lug at the bottom of the processor socket.
  • Page 18: Cpu And System Cooling

    2-4-1 CPU and System Cooling Any attempt to operate the AMD K7 Processor without a suitable cooling solution will result in permanent damage to the processor and potentially other components within the system. FAN Headers Your motherboard allows the use of in all 3 FANs. Of these 3 FANs, 1 can be used by the CPU Heatsink assembly.
  • Page 19: Connectors

    2-5 Connectors There are many connectors on this main board. Refer to the following pages for details. 2-5-1 Front Panel Front panel has connectors as ”EXTSMI,” “PW_BN,” “HD_LED,” “RESET,” “SPEAKER,” “PWR_LED.” Please refer the details as below. PWR-LED PW-BN RESET EXTSMI HD-LED SPEAKER...
  • Page 20 PWR-LED is a 3-pin connector. It allows you to connect a three pin LED fron the case. Notice the polarity, LED will only light up if the polarity is correct. SPEAKER is a 4-pin keyed Berg strip. This speaker connector is for the internal case speaker.
  • Page 21: Back Panel Connectors

    2-5-2 Back Panel Connectors There are PS/2 keyboard/ mouse, USB, COM1/2, LPT1, MIC, LINE-IN, LINE-OUT and GAME Ports on case back panel. Please refer to more details as below. Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 USB2...
  • Page 22 COM1/COM2 The onboard serial port 1 and port 2 are the 9-pin D-subminiature male connector COM1 and COM2. COM1 and COM2 can be disabled in BIOS setup. Please refer to Chapter 3 “Integrated Peripherals” for more information. PS2 Keyboard/ Mouse The Keyboard can be plugged in only one way.
  • Page 23: Power Supply Connector

    2-5-3 Power Supply Connector This main board supply standard ATX power connectors, ATX power supply connector has 20 pins, which is especially designed for ATX case. The ATX power supply supports the function of the “Soft Power On Momentary switch” which connects the front panel switch to the 2-pin PW-BN on the system board.
  • Page 24: Floppy Disk Connector

    2-5-4 Floppy Disk Connector Floppy Disk Connector has 34 pins and allows connection of a floppy drive. In all two floppy drives can be connected to the mother board, known as floppy A and B. The BIOS allows you to disable the floppy controller if you do not use any floppy driver, that will free an Interrupt.
  • Page 25: Ide1 And Ide2

    2-5-5 IDE1 and IDE2 The IDE connectors are used to connect IDE devices such as Harddisks and CD- ROM drives to the motherboard. Each connector constitutes an IDE channel, each channel accepts 2 IDE devices, one Master and one Slave. The IDE 1 connector is also known as the primary channel, IDE 2 is the secondary channel.
  • Page 26: Ir1: Irda Connector

    2-5-6 IR1: IrDA Connector IR connector supports wireless infrared module. With this module and application software like Laplink, or Win95 Direct Cable Connection, user can transfer data to or from laptops, notebooks, PDA and printers. This connector supports HPSIR, ASKIR, and Fsat IR. Attach Infrared module to IR connector.
  • Page 27: Wom1: Wake Up On Modem

    2-5-7 WOM1: Wake Up on Modem Wake up on Modem marked as “WOM1”, is a 3-pin connector. WOM1: Wake Up on Modem Wake-Up 5V-Stand by...
  • Page 28: Wol1:Wakeup On Lan (Optional)

    2-5-8 WOL1: Wake up on LAN (Optional) Wake up on LAN marked as “WOL1,” is a 3-pin connector. To support this feature, a network card is required for the system and network management software must be installed, too. WOL1: Wake Up on LAN Wake-Up 5V-Stand by WOL1 (Wake up on LAN) function requirement:...
  • Page 29: Memory

    Memory This motherboard supports only Dual Inline Memory Modules (DIMMs). Three sockets are available for 2.5 Volt unbuttered DDR (Double Data Rate). The sizes that are supported are: 128, 256 or 512MB memory sizes between 128MB to 512MB can be formed this way. Refer to the picture below for the position of the DIMM slots: DDR1 DDR2...
  • Page 30: Memory Installation

    2-6-1 Memory Installation The DIMM modules can be inserted in DIMM slots 1 to 3. Because of the three notches in the DIMM module it can be inserted in only one way. Please refer to the picture below for information on how to insert the DIMM modules. WARNING: Make sure that you unplug your power supply when adding or removing STOP...
  • Page 31: Notice Of Cd Driver Installation

    Chapter3 Software Install 3-1 Notice of CD Driver Installation This CD contains below drivers. The user must read “Index” before installing required drivers. Index offers all the information on all the drivers. CD driver is always updated with the latest version, so the actual CD content may be somewhat different from the above picture.
  • Page 32: How To Install Software Drivers

    3-2 How to Install Software Driver Installation Procedure: 1. Install “Via 4 in 1”: Select “VIA 4 in 1” directory from attached CD, then click “setup” to complete the installation; the “Via 4 in 1” drive provides O.S. Like windows 98/ ME to recognize VIA Chipset.
  • Page 33: Chapter4 The Bios

    Chapter4 The BIOS The BIOS is a piece of software (Basic Input Output System) that performs most low level tasks. When you start up your system, the BIOS is the first code that gets to run. The BIOS resides in a FLASH ROM, and the code in the FLASH ROM can be updated through a special utility called AWDFLASH.
  • Page 34: Updating The Bios

    Updating the BIOS As said, this procedure is complicated, only update your BIOS when you experience problems with your system. Because each BIOS release completely overwrites the previous version and there is no need to update to intermediate BIOS releases when updating the BIOS.
  • Page 35: The Cmos Memory

    The CMOS memory The BIOS uses the CMOS memory to store all the settings that have been made through the BIOS Setup pages. Battery The CMOS memory remembers all settings, even when the system is switched off, by use of a 3V Lithium battery. If this battery runs low CMOS is unable to keep its settings and you will need to replace the battery.
  • Page 36: Cmos Status

    Take the following steps to clear CMOS memory: Take the power cord from the power supply. Temporarily set JBAT1 to 2–3, and set it back to 1-2. Put the power cord back and restart the system, the default values will be loaded.
  • Page 37: The Bios Setup

    The BIOS Setup Pages To enter the BIOS Setup pages, thke the following steps: Start up the system. After memory counting has finished, press [DEL] to enter the BIOS Setup pages. Now the following menu will appear: Phienix – AwardBIOS CMOS Setup Utility Standard CMOS Features Frequency/Voltage Control Load Optimized Defaults...
  • Page 38: Hot Keys

    Hot Keys Throughout the BIOS Setup Pages the hot keys will give you access to a group of commands. Refer to the following table for the hot keys and their function: Command Description Save & Exit Setup Saves the changes made and reboots the system. Quit Returns to the previous menu [Esc]...
  • Page 39 Exit Without Saving Selecting ‘Exit Without Saving’ will exit Setup without saving changes to CMOS. Phienix – AwardBIOS CMOS Setup Utility Standard CMOS Features Frequency/Voltage Control Load Optimized Defaults Advanced BIOS Features Set Supervisor Password Advanced Chipset Features Integrated Periphral Quit without Saving (Y/N)? Power Manag Exit: Without Saving...
  • Page 40: Standard Cmos Setup

    4-3-1 Standard CMOS Setup Select the [STANDARD CMOS SETUP] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility Standard CMOS Features Date (mm:dd:yy) Mon, Dec 18, 2001 Item Help Time (hh:mm:ss) 11 : 51 : 58 Menu Level None IDE Primary Master...
  • Page 41: Ide Devices

    IDE Devices When you select one of the IDE devices, a submenu will pop up. Refer to the picture below. Phienix – AwardBIOS CMOS Setup Utility IDE Primary Master IDE HDD Auto Detection Press Enter Item Help IDE Primary Master Auto Menu Level Access Mode...
  • Page 42 Drive A and Drive B The Drive A / B items allow you select the type of device that you have attached to the Floppy (FDD1) connector on the motherboard. You can select between different floppy disk drive types by using the Page-Up and Page-Down keys. If you press [enter] while Drive A or B is selected the following menu will pop up that will allow to choose a device as well: Drive X...
  • Page 43 Halt On The BIOS will stop booting when an error is detected. You can set through this item what errors will stop the system booting. You can select between different error modes by using the Page-Up and Page-Down keys. Values Meaning All Errors Stop booting on all errors.
  • Page 44: Bios Features Setup

    4-3-2 BIOS Features Setup Select the [Advanced BIOS Features] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility Advanced BIOS Features Virus Warning Disabled Item Help CPU Internal Cache Enabled External Cache Enabled Menu Level CPU L2 Cache ECC Checking Enabled Allows you to choose the VIRUS warning...
  • Page 45 Virus protection Values Meaning The BIOS will give a beep and a warning whenever an attempt Virus Enabled is made to write to the boot sector of the HDD. Warning Disabled The BIOS will allow write attempts to the boot sector CPU Cache settings Values Meaning...
  • Page 46: Security Option

    Boot Devices The first to third boot device items allow you to select what device the system should boot from. If the BIOS fails to boot from the first boot device, it will attempt to boot from the second boot device, if that fails too, the third boot device is tried. If you set the boot other device item to enabled, the BIOS will try to boot from other devices if the first to third choices all fail.
  • Page 47 Password must be entered only when the user wants to enter the Setup Security BIOS setup. Option System The password must always be entered at boot. OS Select for DRAM > 64MB Values Meaning OS Select For Non-OS2 If your OS is not OS2, always select this setting. DRAM >...
  • Page 48: Chipset Features Setup

    4-3-3 Chipset Features Setup Select the [Advanced BIOS Features] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility Advanced Chipset Features DRAM Clock/ Drive Control Press Enter Item Help AGP & P2P Bridge Control Press Enter CPU &...
  • Page 49 Phienix – AwardBIOS CMOS Setup Utility DRAM Clock/ Drive Control Current FSB Frequency Item Help Current DRAM Frequency Menu Level DRAM Clock By SPD DRAM Timing Manual DRAM CAS Latency Bank Interleave Disabled Precharge to Active (Trp) Active to Precharge (Tras) Active to CMD (Trcd) DRAM Burst Length DRAM Queue Depth...
  • Page 50 Rate Command Precharge & Active (Trp) Values Meaning Precharge to Active (Trp) Active to Precharge (Tras) Active to CMD (Trcd) Phienix – AwardBIOS CMOS Setup Utility AGP & P2P Bridge Control AGP Aperture Size Item Help AGP Mode Menu Level AGP Driving Control Auto AGP Driving Value...
  • Page 51 This value sets the timing of the signal that the video card AGP Driving 00-FF driver uses to communicate over the AGP bus. The range is Value from 00-FF Hex (00-255 DEC). AGP Bus Timing Setting Values Meaning AGP Writes are executed with 1 wait state, enable only if your Enabled AGP Master AGP card support this.
  • Page 52 This will shut down uwe of the integrated buffer, no delayed Disabled transactions are allowed.
  • Page 53: Memory Hole

    Memory Hole Some old devices need a memory hole to be present between 15M and 16M. CPU Cycles matching the hole will be passed on to the PCI bus instead of accessing the memory. Normally you can disable this setting, but if one of your devices needs it set it to enabled. Values Meaning Disabled...
  • Page 54: Integrated Peripherals

    4-3-4 Integrated Peripherals Select the [Integrated Peripherals] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility Integrated Peripherals VIA OnChip IDE Device Press Enter Item Help VIA OnChip PCI Device Press Enter Super IO Device Press Enter Menu Level Init Display First...
  • Page 55 Phienix – AwardBIOS CMOS Setup Utility VIA OnChip IDE Device OnChip IDE Channel0 Enabled Item Help OnChip IDE Channel1 Enabled IDE Prefetcht Mode Enabled Menu Level Primary Master PIO Auto Primary Slave PIO Auto Secondary Master PIO Auto Secondary Slave PIO Auto Primary Master UDMA Auto...
  • Page 57: Floppy Drive

    Phienix – AwardBIOS CMOS Setup Utility VIA OnChip PCI Device VIA-3058 AC97 Audio Auto Item Help VIA-3068 MC97Modem Auto Menu Level ↑ ↓ → ← : Move Enter: Select + / -/ PU / PD: value F10: save ESC: Exit F1: General Help F5 : Previous Values F6:Fail-Safe Defaults F7: Optimized Defaults AC97 Setting...
  • Page 58 COM ports (Serial Ports) Values Meaning Auto The bios will automatically use serial ports. If you do not need the serial port in question, set this item to Disabled disabled. Onboard 3F8/IRQ4 serial port 1 / 2F8/IRQ3 Set an IO address and an IRQ to be used by serial ports. 3E8/IRQ4 2E8/IRQ3 IR Control...
  • Page 59 Game Port Values Meaning Setting game port address at 201 Game Port Setting game port address at 209. Disabled Disabled game port. MIDI Values Meaning Set mpu401 port address at 300. Midi Port Set mpu401 port address at 330. Address Disabled Without midi port or none AC97 m/b Set mpu-40 port IRQ address at 5.
  • Page 61: Power Management Setup

    4-3-5 Power Management Setup Select the [Power Management Setup] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility Power Management Setup ACPI Function Enabled Item Help ACPI Suspend Type S1 (POS) Menu Level Power Management Option User Define HDD Power Down Disable...
  • Page 62: Acpi Function

    ACPI Function Values Meaning Enabled ACPI Function Disabled Power Management Option Values Meaning User Define The three items below can be set by the user. The three items below are set to disabled, 1 hour, 1hour Power Min Saving respectively. Management Option The three items below are set to disabled, 1 min, 1min...
  • Page 63: Power Button

    Power Button Values Meaning Switches the system off immediately when pressing the power Instant-off button. Soft off by PWRBTN This requires you to press the power button for at least 4 Delay 4 Sec seconds before the system switches off. Phienix –...
  • Page 64 A COM (serial port) IRQ will wake up the system LPT/COM Both LPT and COM can wake up the system Will not allow the system to wake up on HDD / FDD IRQs HDD & FDD When a HDD / FDD IRQ occurs the system will wake up. Will not allow the system to wake up on a IRQ from a PCI PCI MAster master.
  • Page 66: Pnp Os Installed

    4-3-6 PnP / PCI Configurations Select the [PnP / PCI Configurations] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility PnP / PCI Configurations PNP OS Installed Item Help Reset Configuration Data Disabled Menu Level Resources Controlled by Auto (ESCD) IRQ Resources...
  • Page 67 Resources Controlled by Values Meaning The table will show the below items: “Reset Configuration Resources Manual Data, IRQ-3 assigned to, DMA-0 assigned to.” The user can Controlled adjust the shown items as required. The table will not show the above items, and the system will Auto automatically assign the above setup.
  • Page 69: Pc Health Status

    4-3-7 PC Health Status Select the [PC Health Status] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility PC Health Status Shutdown Temperature Disabled Item Help Voltage 0 Voltage 1 Menu Level Voltage 2 Voltage 3 Voltage 4 Voltage 5...
  • Page 70: Frequency/Voltage Control

    4-3-8 Frequency/ Voltage Control Select the [Frequency / Voltage Control] option from the Main Menu and press [Enter] key. Phienix – AwardBIOS CMOS Setup Utility Frequency / Voltage Control Auto Detect PCI/DIMM Clk Disabled Item Help Spread Specrurm Disabled CPU Host/PCI Clock Default Menu Level ↑...
  • Page 71 4-3-9 Passwords The BIOS Setup program allows you to specify passwords in the Main menu. The passwords control access to the BIOS during system startup. The passwords are not case sensitive. In other words, it makes no difference whether you enter a password using upper or lowercase letters.
  • Page 72 Disabling the password To disable the password, simply press [enter] without entering any other letters or numbers. This will disable the password, the BIOS will tell you by displaying the following dialog: CMOS SETUP UTILITY Copyright © 1984 – 2001 Award Software Standard CMOS Features Frequency/Voltage Control Advanced BIOS Features...
  • Page 73: Chapter 5 Appendix

    Chapter 5 Appendix 5-1 Memory Map Address range Size Description 00000-7FFFF 512K Conventional memory 80000-9FBFF 127K Extended conventional memory 9FC00-9FFFF Extended BIOS data area if PS/2 mouse is installed A0000-C7FFF 160K Available for hi DOS memory C8000-DFFFF Available for hi DOS memory and adapter ROMs E0000-EEFFF Available for UMB...
  • Page 74: I/O Map

    5-2 I/O Map 000-01F DMA controller (master) 020-021 Interrupt controller (master) 022-023 Chipset control registers. I/O ports 040-05F Timer control registers 060-06F Keyboard interface controller (8042) 070-07F RTC ports & CMOS I/O ports 080-09F DMA register 0A0-0BF Interrupt controller (slave) 0C0-0DF DMA controller (slave) 0F0-0FF...
  • Page 75: Time & Dma Channels Map

    5-3 Time & DMA Channels Map Time map: Timer channel 0 system timer interrupt Timer channel 1 DRAM refresh request Timer channel 2 speaker tone generator DMA channels: DMA channel 0 available DMA channel 1 onboard ECP (option) DMA channel 2 floppy disk (SMC chip) DMA channel 3 onboard ECP (default) DMA channel 4 cascade for DMA controller 1 DMA channel 5 available...
  • Page 76: Interrupt Map

    5-4 Interrupt Map NMI: non-maskable interrupt IRQ(H/W): 0 system timer interrupt from timer 0 1 keyboard output buffer full 2 cascade for IRQ 8-15 3 serial port2 4 serial port1 5 parallel port 2 6 floppy disk (SMC chip) 7 parallel port 1 8 RTC clock 9 available 10 available...
  • Page 77: Rtc & Cmos Ram Map

    5-5 RTC & CMOS RAM Map RTC & CMOS : seconds seconds alarm minutes minutes alarm hours hours alarm day of week day of month month year status register a status register b status register c status register d diagnostic status byte shutdown byte floppy disk drive type byte hard disk type byte...
  • Page 78: Isa I/O Address Map

    5-6 ISA I/O Address Map I/O Address (HEX) I/O device 000 - 01F DMA Controller 1, 8237A-5 020 - 03F Interrupt Controller 1, 8259A 040 - 05F System Timer, 8254-2 060 - 06F 8042 Keyboard Controller 070 - 07F real-time Clock/CMOS and NMI Mask 080 - 09F DMA Page Register, 74LS612 0A0 - 0BF...
  • Page 79 I/O Address (HEX) I/O device 390 - 393 Cluster 3A0 - 3AF Bisynchronous 1 3C0 - 3CF Enhanced Graphics Adapter 3D0 - 3DF Color/Graphics Monitor Adapter 3F0 - 3F7 Diskette Drive Controller 3F8 - 3FF Serial Port 1 (RS-232-C) 6E2 - 6E3 Data Acquisition Adapter 1 790 - 793 Cluster Adapter 1...
  • Page 80: Chapter 6 Q & A

    Chapter 6 Q & A 6-1 Errors Messages During Power On Self Test During power on self test (post), BIOS will automatically detect the system devices. Below is the question that users most often meet. The user may press “Esc” key to skip the full memory test. 1.
  • Page 81 6. Hard disk install failure The system can not find or initialize the hard drive controller or the drive. Check if the controller is set correctly. If no hard disk is installed, “Hard drive selection” must be set to “none.” 7.

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