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Octek HIPPO II 486 Manual

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  • Page 1 H I P P O I I 4 8 6...
  • Page 2 The material in this manual is for information only and is subject to change without notice. REVISION: 2.2 IBM, IBM PC/XT/AT, PC-DOS, MS-DOS, OS/2, INTEL, AMI ARE THE TRADEMARKS OR REGISTERED TRADEMARKS OF THEIR RESPECTIVE OWNERS.
  • Page 3 RADIO FREQUENCY INTERFERENCE STATEMENT This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instructions, may cause interference with radio and television reception. If this equipment does cause interference to radio or TV reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following...
  • Page 4 Note Electronic components are sensitive to dust and dirt. Do inspect and clean the computer system regularly. Turn off the power whenever you install or remove any connector, memory module and add-on card. Before turning on the power, make sure that all the connectors, memory modules and add-on cards are secured.
  • Page 5 In this manual, there are 4 chapters. Chapter 1 contains a brief introduction and specification of OCTEK HIPPO II motherboard. In the Chapter 2, the functions of HIPPO II are explained. It also outlines many advanced features of the CPU and the system architecture.

  • Page 6: Table Of Contents

    Table of Content INTRODUCTION Chapter 1 GENERAL FEATURES Chapter 2 Specification 2-1 Processor 2-3 Secondary Cache Memory Memory System 2-12 8042 Emulation 2-14 Dual Bus Design 2-15 Chapter 3 CONFIGURING THE SYSTEM Installing Math Coprocessor 3-1 Configuration of Cache Memory Installing RAM Modules Configuration of Memory DRAM Configuration 3-7...
  • Page 7 Real Time Clock and CMOS RAM CMOS RAM Address Map Real Time Clock Information 4-10 System Expansion Bus 4-11 SYSTEM BIOS Appendix A Self-test A-1 System Setup A-4 OPERATION AND MAINTENANCE Appendix B Static Electricity Keeping The System Cool Cleaning The `Golden Finger' Cleaning The Motherboard TROUBLESHOOTING Appendix C...
  • Page 8 Chapter 1 Introduction _______________________________ OCTEK HIPPO II is designed to be a powerful platform for sophisticated software available now and in the future. It contains the most powerful microprocessor 80486 which combines CPU, numeric coprocessor and internal cache memory on a single chip.
  • Page 9 Compatibility and reliability are important issues. I/O channel is compatible to standard AT bus and any peripheral may be used. On board POWERGOOD generator is essential to ensure the reliability of the system and is well-designed to work with all power supplies.

  • Page 10: Chapter 2 General Features

    Chapter 2 General Features _______________________________ SPECIFICATION Processor : Intel 80486DX, 80486SX or 80487SX CPU with optional WEITEK 4167 Co-processor Speed : Turbo/normal speed I/O Slot : Compatible to standard AT bus Six 16-bit slots Eight 8-bit slots Secondary Cache Memory : 64KB or 256KB Direct mapped Write-back cache memory...
  • Page 11 GENERAL FEATURES __________________________________ Memory : Shadow RAM for system and video BIOS Page mode and hidden refresh Flexible configuration SIMM sockets for 256KB, 1MB or 4MB modules Maximum 64MB on board with optional memory expansion card System Support Functions : 8-Channel DMA (Direct Memory Access) 16-level interrupt 3 programmable timers...

  • Page 12: Processor

    It is fully binary compatible with 80386 and 80387. All existing software for PC XT/AT can be used on OCTEK HIPPO II. However, due to the new internal architecture, the performance of 80486 is two to four times of 80386.
  • Page 13 GENERAL FEATURES __________________________________...
  • Page 14 GENERAL FEATURES __________________________________ The cache memory is a 8K bytes, 16 bytes line size, four-way set associative configuration. The hit rate of this configuration is much better than 32K bytes two- way set associative external cache because a four-way set associative architecture provides better performance in a multitasking and multi-processor environment.
  • Page 15 GENERAL FEATURES __________________________________ By eliminating the access to external bus, operations with the internal cache can be completed in a single cycle. 80386 at least needs two cycles for an operation. To further increase the rate of data transfer inside the CPU, the internal bus of the cache memory is increased to 128 bits, which is four times of the external bus.
  • Page 16 GENERAL FEATURES __________________________________ Internal memory management unit provides a flexible addressing scheme for the next generation operation system. Multitasking, concurrent operation and manipulating huge data base can be accomplished with excellent performance. Paging mechanism is employed allow powerful operating system implement virtual memory.

  • Page 17: Secondary Cache Memory

    HIPPO II 486 and it supports up to 256KB cache memory. In a single user system, when only DOS is used and few megabytes memory is installed, the internal cache memory is adequate and the performance is still very high.
  • Page 18 GENERAL FEATURES __________________________________ which means data of different processes can coexist in the secondary cache memory. So, an optimal size is 128K or 256K bytes and this size is adequate for over 8M bytes main memory. The secondary cache also helps to reduce the main memory bus utilization.
  • Page 19 GENERAL FEATURES __________________________________ Advanced features are incorporated to further improve overall performance support sophisticated 32-bit software. Firstly, cache controller is able to work in the unique 80486 burst read mode, which results in true zero wait state operation at high speed. The write policy of the HIPPO II cache controller is write-back.
  • Page 20 GENERAL FEATURES __________________________________ BIOS may be individually selected to be cacheable or not. The setup of the non-cacheable address ranges can be easily done in the BIOS setup.

  • Page 21: Memory System

    GENERAL FEATURES __________________________________ MEMORY SYSTEM Two banks of DRAMs can be installed on board and two banks are on the memory expansion board. So 16 SIMM modules may be installed on your system and the maximum memory size is up to 64MB. 256KB, 1MB and 4MB DRAM SIMM modules are supported.
  • Page 22 GENERAL FEATURES __________________________________ The memory refresh logic is redesigned to improve system performance power consumption. In the original PC/AT design, the memory refresh operation will suspend the CPU operation because it has to access the main memory. In a high speed system like HIPPO II, the CPU indeed can process a large amount of operations in the memory refresh period.

  • Page 23: 8042 Emulation

    GENERAL FEATURES __________________________________ 8042 EMULATION Now, there are many PC designs with a special feature for OS/2 optimization. It is intended to speed up the protected mode switching operation which is done by the slow speed keyboard controller in the original PC design.

  • Page 24: Dual Bus Design

    GENERAL FEATURES __________________________________ DUAL BUS DESIGN It is very important that a high speed system should be compatible with existing peripherals without lowering the performance. To be compatible, the I/O slot should run at 8MHz or slower. On the other hand, the rest of the system are running at full speed.
  • Page 25 GENERAL FEATURES __________________________________ │ ││ │ └──────┘└──────┘...
  • Page 26 GENERAL FEATURES __________________________________ THIS PAGE IS INTENTIONALLY LEFT BLANK...

  • Page 27: Chapter 3 Configuring The System

    Chapter 3 Configuring The System _______________________________ Important Note : Turn off the power before installing or replacing any component. INSTALLING MATH COPROCESSOR Math coprocessor WEITEK 4167 is a PGA devices. Beside the CPU, there is a 144-pin PGA socket. To install Math Coprocessor, be sure to line up pin 1 of the Math coprocessor with pin 1 of the socket as shown below.
  • Page 28 CONFIGURING THE SYSTEM __________________________________ Before installing the Math coprocessor, make sure that all the pins are straight. The pins are very fragile. Once these pins are bent, the coprocessor may be damaged. The Math coprocessor is automatically detected by the system and the applications. No jumper is needed to be set.

  • Page 29: Configuration Of Cache Memory

    CONFIGURING THE SYSTEM __________________________________ CONFIGURATION OF CACHE MEMORY Note : if you have any question about the configuration of the cache memory, consult your local dealer. Improper configuration will cause the system malfunction. When you install external cache memory on board, enter BIOS Setup to enable the external Cache memory.
  • Page 30 CONFIGURING THE SYSTEM __________________________________ For 64KB cache, use 8KX8 SRAM. For 256KB cache, use 32KX8 SRAM. A 64KX1 must be installed on U31. The IC on U28, U29 and U30 may be installed according to the cache Memory size. U28 (16Kx4) U29 (16Kx4) U30 (8Kx8) 256K...

  • Page 31: Installing Ram Modules

    CONFIGURING THE SYSTEM __________________________________ INSTALLING RAM MODULES OCTEK HIPPO II has eight sockets on board for SIMM modules. Whenever you add memory to the motherboard, install four modules at the same time. Also make sure that the chips on the modules face towards the slot for memory expansion board.

  • Page 32: Configuration Of Memory

    CONFIGURING THE SYSTEM __________________________________ CONFIGURATION OF MEMORY The configuration of the memory is very flexible. There are several combinations of DRAM types you may consider. 256KB, 1MB or 4MB SIMM are acceptable. So, a basic system can be equipped with fewer memory and later more memory can be installed when upgrading the system.

  • Page 33: Dram Configuration

    CONFIGURING THE SYSTEM __________________________________ DRAM CONFIGURATION Bank 0 Bank 1 Bank 2 Bank 3 Total 256K 256K 256K 256K 256K 256K 256K 256K 256K 256K...
  • Page 34 CONFIGURING THE SYSTEM __________________________________...

  • Page 35: Control Of System Speed

    CONFIGURING THE SYSTEM __________________________________ CONTROL OF SYSTEM SPEED System speed can be controlled by keyboard and turbo switch. To change the speed by keyboard, use `-' and `+' of the numeric keypad. Press `Ctrl' `Alt' and `-' for slow speed and press `Ctrl' `Alt' and `+' for fast speed.

  • Page 36: System Board Jumper Setting

    CONFIGURING THE SYSTEM __________________________________ SYSTEM BOARD JUMPER SETTING There are several options which allows user to select by hardware switches. Display Selection CGA, EGA, VGA Monochrome display * CPU Type 486DX 486SX 487SX 1 - 2 2 - 3 1 - 2 1 - 2 2 - 3 1 - 2...

  • Page 37: System Board Connectors

    CONFIGURING THE SYSTEM __________________________________ SYSTEM BOARD CONNECTORS Under typical conditions, these connectors should be connected to the indicators and switches of the system unit. The functions of connectors on the motherboard are listed below. Description Hardware reset connector Speaker connector Turbo switch Turbo LED Power LED &...
  • Page 38 CONFIGURING THE SYSTEM __________________________________ P2 - Speaker Connector Assignment Data out +5 Vdc Ground +5 Vdc P3 - Turbo Switch Connector Assignment Selection Pin Ground P4 - Turbo LED Connector Assignment +5Vdc LED signal...
  • Page 39 CONFIGURING THE SYSTEM __________________________________ P5 - Power LED & Ext-Lock Connector Assignment +5 Vdc Ground Keyboard inhibit Ground P6,P7 - Power Supply Connector Assignment POWERGOOD +5 Vdc +12 Vdc -12 Vdc Ground Ground Assignment Ground Ground -5 Vdc +5 Vdc +5 Vdc...
  • Page 40 CONFIGURING THE SYSTEM __________________________________ +5 Vdc...
  • Page 41 CONFIGURING THE SYSTEM __________________________________ P8 - External Battery Connector Assignment + Vdc not used Ground Ground KB1 - Keyboard Connector Assignment Keyboard clock Keyboard data Spare Ground +5 Vdc JP12 - Connector for Cooling Fan Assignment +5 Vdc...
  • Page 42 CONFIGURING THE SYSTEM __________________________________ THIS PAGE IS INTENTIONALLY LEFT BLANK...

  • Page 43: Chapter 4 Technical Information

    Chapter 4 Technical Information _______________________________ This section provides technical information about OCTEK HIPPO II and is intended for advanced users interested basic design operation OCTEK HIPPO II. MEMORY MAPPING Address Range Function 000000- 000K-512K System Board Memory 7FFFFF (512K) 080000- 512K-640K System...

  • Page 44: I/O Address Map

    TECHNICAL INFORMATION __________________________________ I/O ADDRESS MAP I/O Address Map on System Board I/O address hex 000 to 0FF are reserved for the system board I/O. ADDRESS DEVICE (HEX) 000-01F DMA Controller 1, 8237 020-03F Interrupt Controller 1, 8259, Master 040-05F Timer, 8254 060-06F Keyboard Controller...
  • Page 45 TECHNICAL INFORMATION __________________________________ I/O address hex 100 to 3FF are available on the I/ O channel. ADDRESS DEVICE (HEX) 1F0-1F8 Fixed Disk 200-207 Game I/O 278-27F Parallel Printer Port 2 2F8-2FF Serial Port 2 300-31F Prototype Card 360-36F Reserved 378-37F Parallel Printer Port 1 380-38F SDLC, bisynchronous 2...

  • Page 46: System Timers

    TECHNICAL INFORMATION __________________________________ SYSTEM TIMERS OCTEK HIPPO three programmable timer/counters controlled by 82C206 and they are defined as channels 0 through 2: Channel 0 System Timer Gate 0 Tied on Clk in 0 1.190 Mhz OSC Clk out 0 8259 IRQ 0...
  • Page 47 TECHNICAL INFORMATION __________________________________ Channel 2 Tone Generation of Speaker Gate 2 Controlled by bit 0 of port hex 61 PPI bit Clk in 2 1.190 Mhz OSC Clk out 2 Used to drive the speaker Note : Channel 1 is programmed to generate a 15-micro-second period signal.

  • Page 48: System Interrupts

    TECHNICAL INFORMATION __________________________________ SYSTEM INTERRUPTS Sixteen levels of system interrupts are provided on OCTEK HIPPO II. The following shows the interrupt- level assignments in decreasing priority. Level Function Microprocessor NMI Parity or I/O Channel Check Interrupt Controllers CTLR 1 CTLR 2...
  • Page 49 TECHNICAL INFORMATION __________________________________ │ │ ╞══════════════════════════════════════╡ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ─┐ │ │ │ ┌─ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └─┤...

  • Page 50: Direct Memory Access (Dma)

    TECHNICAL INFORMATION __________________________________ DIRECT MEMORY ACCESS (DMA) OCTEK HIPPO II supports seven DMA channels. Channel Function Spare (8 bit transfer) SDLC (8 bit transfer) Floppy Disk (8 bit transfer) Spare (8 bit transfer) Cascade for DMA Controller 1 Spare (16 bit transfer)

  • Page 51: Real Time Clock And Cmos Ram

    TECHNICAL INFORMATION __________________________________ The following shows the addresses for the page register. Page Register I/O Address (HEX) DMA Channel 0 0087 DMA Channel 1 0083 DMA Channel 2 0081 DMA Channel 3 0082 DMA Channel 5 008B DMA Channel 6 0089 DMA Channel 7 008A...

  • Page 52: Cmos Ram Address Map

    TECHNICAL INFORMATION __________________________________ CMOS RAM ADDRESS MAP Addresses Description 00-0D * Real-time clock information * Diagnostic status byte * Shutdown status byte Diskette drive type byte - drives A and B Reserved Fixed disk type byte - drives C and D Reserved Equipment byte Low base memory byte...
  • Page 53 TECHNICAL INFORMATION __________________________________ bytes and specifies their addresses. Byte Function Address Seconds Second alarm Minutes Minute alarm Hours Hour alarm Day of week Date of month Month Year Status Register A Status Register B Status Register C Status Register D...

  • Page 54: System Expansion Bus

    TECHNICAL INFORMATION __________________________________ SYSTEM EXPANSION BUS OCTEK HIPPO II provides eight 16-bit slots. The I/O channel supports: I/O address space from hex 100 to hex 3FF Selection of data access (either 8 or 16 bit) 24 bit memory addresses (16MB) Interrupts...
  • Page 55 TECHNICAL INFORMATION __________________________________ The following figure shows the pin numbering for I/O channel connectors (A-side and B-side).
  • Page 56 TECHNICAL INFORMATION __________________________________ The following figure shows the pin numbering for I/O channel connectors (C-side and D-side).
  • Page 57 TECHNICAL INFORMATION __________________________________ The following tables summarize pin assignments for the I/O channel connectors. I/O Channel (A-Side) I/O Pin Signal Name -I/O CH CK -I/O CH RDY SA19 SA18 SA17 SA16 SA15 SA14 SA13 SA12 SA11 SA10...
  • Page 58 TECHNICAL INFORMATION __________________________________...
  • Page 59 TECHNICAL INFORMATION __________________________________ I/O Channel (B-Side) I/O Pin Signal Name Ground RESET DRV +5 Vdc Power IRQ9 -5 Vdc Power DRQ2 -12 Vdc Power +12 Vdc Power Ground -SMEMW -SMEMR -IOW -IOR -DACK3 DRQ3 -DACK1 DRQ1 -Refresh IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 -DACK2...
  • Page 60 TECHNICAL INFORMATION __________________________________ Ground...
  • Page 61 TECHNICAL INFORMATION __________________________________ I/O Channel (C-Side) I/O Pin Signal Name SBHE LA23 LA22 LA21 LA20 LA19 LA18 LA17 -MEMR -MEMW SD10 SD11 SD12 SD13 SD14 SD15...
  • Page 62 TECHNICAL INFORMATION __________________________________ I/O Channel (D-Side) I/O Pin Signal Name -MEM CS16 -I/O CS16 IRQ10 IRQ11 IRQ12 IRQ15 IRQ14 -DACK0 DRQ0 -DACK5 DRQ5 -DACK6 DRQ6 -DACK7 DRQ7 +5 Vdc Power -MASTER Ground...
  • Page 63 TECHNICAL INFORMATION __________________________________ THIS PAGE IS INTENTIONALLY LEFT BLANK...

  • Page 64: Appendix Asystem Bios

    Appendix A System BIOS _______________________________ The system BIOS in HIPPO II provides an interface for operating systems and applications to access the hardware. It is fully compatible with standard AT BIOS and works flawlessly in the network system. It also performs self-test after reset and includes a setup program to setup the system.
  • Page 65 SYSTEM BIOS __________________________________ These fatal errors are usually communicated through a series of audible beeps. The numbers on the fatal error list below correspond to the number of beeps for the corresponding error. All errors listed, with the exception of #8, are fatal errors. No.
  • Page 66 SYSTEM BIOS __________________________________ System Configuration (C) Copyright 1985-1990, American Megatrends Inc., Main Processor : 80486 Base Memory Size : 640 KB Numeric Processor : Present Ext. Memory Size : 3072 KB Floppy Drive A: : 1.2 MB, 5¼" Hard Disk C: Type Floppy Drive B: : 1.44MB, 3½"...

  • Page 67: System Setup

    SYSTEM BIOS __________________________________ SYSTEM SETUP The BIOS incorporates four setup sections: Standard CMOS Setup Advanced CMOS Setup Auto Configuration with BIOS Defaults Hard Disk Utilities It is important that all the setup procedures should be completed before operating the system. Otherwise, the system may not run properly with the incorrect setup information.
  • Page 68 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - AMI BIOS SETUP UTILITIES <C> 1990 American Megatrends, Inc. All Rights Reserved STANDARD CMOS SETUP ADVANCED CMOS SETUP AUTO CONFIGURATION WITH BIOS DEFAULTS HARD DISK UTILITY WRITE TO CMOS AND EXIT DO NOT WRITE TO CMOS AND EXIT Configure system with Power On Default Values for Chipset and Advanced CMOS...
  • Page 69 SYSTEM BIOS __________________________________ ( 1 ) CMOS SETUP The memory size and the numeric processor are detected by the BIOS. So you are only required to set those options on the left side of the screen. The system configuration information are shown as follows:...
  • Page 70 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - STANDARD CMOS SETUP (C) 1990 American Megatrends Inc., All Rights Reserved Date (mn/date/year) : Sun, Jul 01, 1990 Base memory size : 640 KB Time (hour/min/sec) : 12 : 05 : 30 Ext. memory size : 3072 KB Daylight Saving : Disabled Cyln Head WPcom...
  • Page 71 SYSTEM BIOS __________________________________ ║ ╟──┼──┼──┼──┼──┼──┼──╢ ║╔═══════════════════╗ ║ │ │ │ │ │ │ ║ ║║ ║ ╟──┼──┼──┼──┼──┼──┼──╢ ║║ ║ ║ │ │ │ │ │ │ ║ ║║ ║ ╟──┼──┼──┼──┼──┼──┼──╢ ║╚═══════════════════╝ ║ │ │ │ │ │ │ ║ ╟─────────────────────────────╫──┼──┼──┼──┼──┼──┼──╢ ║...
  • Page 72 SYSTEM BIOS __________________________________ OPTION 1 TIME AND DATE Use PgUp and PgDn keys to change the value. The date and time cannot be entered directly. calender is displayed on the lower right corner of the screen for your reference. OPTION 2 FIXED DISK DRIVE There are 47 types of fixed disks supported by the BIOS.
  • Page 73 SYSTEM BIOS __________________________________ Some fixed disks are specially handled and must be set to 'Not Installed'. Consult the fixed disk manual for details. OPTION 3 FLOPPY DISK DRIVE Four types of floppy disk drives are supported : 1. 5-¼ inch standard drive (360K) 2.
  • Page 74 SYSTEM BIOS __________________________________ The BIOS is able to detect the type of the drives automatically. But remember to check the settings before exit. OPTION 4 DISPLAY Four types of display are supported: 1. CGA 80 column mode 2. CGA 40 column mode 3.
  • Page 75 SYSTEM BIOS __________________________________ ( 2 ) ADVANCED CMOS SETUP All the registers of the chipsets are set to default values by the system BIOS. Usually, there is no need to modify these registers unless the configuration is changed. Since improper settings of these registers may cause the system malfunction, check your settings carefully before exit.
  • Page 76 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - ADVANCED CMOS SETUP <C> 1990 American Megatrends Inc., All Rights Reserved Typematic Rate Programming : Enabled Adapter ROM Shadow D400,16K : Disabled Typematic Rate Delay (Msec) : 500 Adapter ROM Shadow D800,16K : Disabled Typematic Rate (Chars/Sec) : 15 Adapter ROM Shadow DC00,16K : Disabled...
  • Page 77 SYSTEM BIOS __________________________________ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ║ ╚══════════════════════════╩══════════════════════════╝...
  • Page 78 SYSTEM BIOS __________________________________ After changing the registers' settings, test your system first to make sure that the settings are correct. It is likely that your system becomes unstable and you need to setup the registers again. In this section, you simply use the up and down arrow keys to move...
  • Page 79 SYSTEM BIOS __________________________________ Extended Memory Test : If the option is enabled, the memory above 1MB will be tested. Memory Test Tick Sound : This option will turn on or turn off the "ticking" sound during the memory test. Hit <Del> Message Display : If enabled, the following message will be shown after memory test : "Hit <Del>...
  • Page 80 SYSTEM BIOS __________________________________ 639 KB. When the system shadowed (F000) is enabled, the BIOS will add the user-defined hard disk type to the hard disk type table in the system BIOS. There is no need to store the data for the user-defined hard disk type in the separate area.
  • Page 81 SYSTEM BIOS __________________________________ Floppy Drive Seek At Boot : The default for this option is "Enabled". If disabled, it allows a fast boot. System Boot Up Sequence : This option allows you to choose which drive the system will boot from first. The default setting is `A:, C:'.
  • Page 82 SYSTEM BIOS __________________________________ Video, Adapter and System ROM shadow : There are two options of shadow RAM for video adapter, ten options of shadow RAM for add-on card and one for the system BIOS. For the option System ROM, the content of the system at F000H segment BIOS is copied to the on board memory.
  • Page 83 SYSTEM BIOS __________________________________ ( 3 ) ADVANCED CHIPSET SETUP Hidden Refresh : If enabled, the refresh operation of main memory will not suspend the CPU operation and the overall performance is better. When 4MB DRAM is used, this option MUST be disabled.
  • Page 84 SYSTEM BIOS __________________________________ Master Byte Mode Swap : An add-on card with bus master capability should handle data swapping 8-bit operation correctly and this option need not be enabled normally. However, some bus masters add-on cards is not fully compatible with the ISA bus standard. By enabling this option, the system logic will instead perform the data swapping.
  • Page 85 SYSTEM BIOS __________________________________ AT BUS clock Selection : There are four options. Depending on the system speed, the AT BUS clock can be set as: CLK1 AT BUS Clock 20MHz 25MHz 33MHz 3.33 4.17 6.25 8.25 6.67 8.33 /2.5 To be fully compatible, set the clock to about 8MHz. Non-cacheable Block Size and Non-cacheable Block Base : Two non-cacheable block, block-1 and block-2, can...
  • Page 86 SYSTEM BIOS __________________________________ Video BIOS Area Cacheable : The video BIOS starts from the location 768K (C0000 hexadecimal) and the size is 32KB. This option lets you set the address range to be non-cacheable easily without concerning about the base address and the size.
  • Page 87 SYSTEM BIOS __________________________________ ( 4 ) AUTO CONFIGURATION WITH BIOS DEFAULTS The Auto configuration with BIOS default is used to set the internal registers of the system in optimum performance with high reliability. Once the Auto Configuration is applied, the user need not enter the ADVANCED CMOS SETUP.
  • Page 88 SYSTEM BIOS __________________________________ ( 5 ) HARD DISK UTILITY Hard Disk Diagnostics option is taken by pressing <Enter> at the Main Setup Menu, the screen is shown as below :...
  • Page 89 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - HARD DISK UTILITY <C> 1990 American Megatrends Inc,. All Rights Reserved Cylin Head WPcom LZone Sect Size (MB) Hard Disk C:Type : 47 USER TYPE 1314 1314 1314 Hard Disk D: Type : Not Installed Hard Disk Type can be changed from the STANDARD CMOS SETUP option in Main Menu Hard Disk Format Auto Interleave...
  • Page 90 SYSTEM BIOS __________________________________ ║ ║ ╠════════════════════════════════════════════════════╣ ║ ║ ║ ║ ║ ║ ╚════════════════════════════════════════════════════╝...
  • Page 91 SYSTEM BIOS __________________________________ There are three options in the hard disk utility : Hard Disk Format, Auto Interleave, and Media Analysis. For a new hard disk (drive), the manufacturer of the hard drive usually provides a list of "bad tracks" with the hard drive.
  • Page 92 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - HARD DISK UTILITY <C> 1990 American Megatrends Inc,. All Rights Reserved Cylin Head WPcom LZone Sect Size (MB) Hard Disk C:Type : 47 USER TYPE 1314 1314 1314 Hard Disk D: Type : Not Installed Hard Disk Format Disk Drive (C/D) Disk Drive Type...
  • Page 93 SYSTEM BIOS __________________________________ ║ ║ ╚════════════════════════════════════════════════════╝...
  • Page 94 SYSTEM BIOS __________________________________ OPTION 1 HARD DISK FORMAT UTILITY Use the Hard Disk Format option to integrate a new hard disk to the system, or to reformat a used hard disk which has developed some bad tracks. To find these bad tracks on a used drive, select the Media Analysis option.
  • Page 95 SYSTEM BIOS __________________________________ The hard drive usually provides a list of bad tracks. These tracks should be entered with this option, and they will then be marked as "bad" in order to prevent data from being stored there. The default for the Proceed prompt is <N> to prevent accidental formatting of the hard drive and subsequent loss of data.
  • Page 96 SYSTEM BIOS __________________________________ OPTION 2 AUTO INTERLEAVE UTILITY Auto Interleave Utility determines optimum interleave value by measuring the transfer rate for four different interleave values. The cylinders, heads and sectors formatted for each value will be displayed in the actively box on the screen.
  • Page 97 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - HARD DISK UTILITY <C> 1990 American Megatrends Inc,. All Rights Reserved Cylin Head WPcom LZone Sect Size (MB) Hard Disk C:Type : 47 USER TYPE 1314 1314 1314 Hard Disk D: Type : Not Installed Auto Interleave Bad Track % Disk Drive (C/D)
  • Page 98 SYSTEM BIOS __________________________________ ║ ╚════════════╝ ║ ║ ║ ╚════════════════════════════════════════════════════╝...
  • Page 99 SYSTEM BIOS __________________________________ OPTION 3 MEDIA ANALYSIS UTILITY The Media Analysis Utility performs a series of tests to locate bad tracks on the hard disk. All bad tracks on the hard disk will be listed in the Bad Track List Box.
  • Page 100 SYSTEM BIOS __________________________________ BIOS SETUP PROGRAM - HARD DISK UTILITY <C> 1990 American Megatrends Inc,. All Rights Reserved Cylin Head WPcom LZone Sect Size (MB) Hard Disk C:Type : 47 USER TYPE 1314 1314 1314 Hard Disk D: Type : Not Installed Media Analysis Disk Drive (C/D) Disk Drive Type...
  • Page 101 SYSTEM BIOS __________________________________ ║ ║ ╚════════════════════════════════════════════════════╝...

  • Page 102: Operation And Maintenance

    Appendix B Operation and Maintenance _______________________________ STATIC ELECTRICITY When installing or removing any add-on card, DRAM module or coprocessor, you should discharge the static electricity on your body. Static electricity is dangerous to electronic device and can build-up on your body.

  • Page 103: Cleaning The Motherboard

    Whenever inserting an add-on card to the motherboard, make sure that there is no dirt on the "golden finger" of the add-on card. If not, the contact between the "golden finger" and the slot may be poor and thus the add-on card may not work properly. Use a pencil eraser to clean the "golden finger"...

  • Page 104: Appendix Ctroubleshooting

    Appendix C Troubleshooting _______________________________ MAIN MEMORY ERROR After power up, the monitor remains blank, and there are beep sounds indicating a main memory failure. In this case, turn off the power and remove all SIMM modules. Carefully place the modules back to the sockets and make sure that all the modules are locked by the locking latches firmly.

  • Page 105: Improper Setting Of Wait State

    IMPROPER SETTING OF WAIT STATE If the system hangs after memory test, another possible cause is the improper setting of the wait state for memory operation. The number of wait state must match the speed of the DRAM. Reset the CMOS RAM and set up the wait state.

  • Page 106: Appendix Dsystem Board Layout

    Appendix D System Board Layout _______________________________...
  • Page 107 Appendix E Memory Expansion Card Layout _______________________________...

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