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VESA 80486VESA User Manual

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Part No. 03-0023X-00

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Summary of Contents for VESA 80486VESA

  • Page 1 Part No. 03-0023X-00...

  • Page 2: Copyright Notice

    IBM is a registered trademark of International Business Machines AMI is a registered trademark of American Megatrends Inc. Intel is a registered trademark of Intel Corporation 80486 is a registered reademark of Intel Corporation VESA VL-Bus is a registered trademark of Video Electronics Standard Association.

  • Page 3: Table Of Contents

    C h a p t e r 1 Introduction What is VESA V L - B u s ? Advantages of VESA VL.-Bus 80486VESA Motherboard Overview 80486VESA Features Performance Report C h a p t e r 2 Configuration and Layout...

  • Page 4: What Is Vesa Vl-Bus

    1 Introduction What is VESA VL-Bus? The VESA VL-Bus is a proposal from the Video Electronics Standard Association committee. The architecture of the VL-Bus generally follows the 486 CPU local bus. Additional hardware functions are added to accommodate VL-Bus master devices and intrractinn with the system I/O bus.

  • Page 5: 80486Vesa Motherboard Overview

    The 80486VESA system board is a high performance, function enchanced computer system board that combines the power of Intel’s new 80486 CPU and the VESA VL-bus. The board design includes a variety of high-powered features. Its high performance capability can provide an ideal system board solution for a wide...

  • Page 6: 80486Vesa Features

    80486VESA-33 MI-Iz: : 151.9 MHz (Ver. 1.14) Landmark Speed Rating : 14.819 MIPS (Ver. 1.3) Power Meter MIPS 80486VESA-50 MHz: : 200 + MHz (Ver. 1.14) Landmark Speed Rating : 22.271 MIPS (Ver. 1.3) Power Meter MIPS 80486VESA User’s Manual...

  • Page 7: Configuration And Layout

    Before installing the 80486VESA system board, make sure the connectors and jumper settings are set for your configuration. The 80486VESA system board has two jumpers (JP9, JP1O) for the CPU Type selection, and two jumpers (JP12, JP13) for the Cache Size selection.
  • Page 8 JPl5 Pin# Assignment Ground Turbo Control Front Panel Turbo LED Connector (JP16) Connector JP16 is a 2-pin single in-line BERG strip. It can be connected to an LED display indicating the CPU speed. The display lights up when the CPU is running at full speed (Please refer to Chapter 3 “Installation &...
  • Page 9 Chapter 2: Configuration and Layout Front Panel Speaker Connector (JP17) Connector JP17 is a 4-pin single in-line BERG strip which provides for the front panel speaker connection. The pin assignments are: JP17 Pin# Assignment speaker data N. C. ground +5 v Power Supply Connector (PW1) There is a power supply connectors on-board.
  • Page 10 Chapter 2: Configuration and Layout External Battery (JPl) The 80486VESA motherboard provides one external battery supply connector. The pin assignments are: JP1 Pin# Assignment Battery Positive No Connection Ground Ground Monitor Type (JP2) Jumper JP2 is used to set the display type. The motherboard is designed to work with both monochrome and color display monitors.

  • Page 11: Cpu Type Selection

    2-3 Open Close P24T CPU Clock Selection The 80486 VESA motherboard uses a CPU frequency generator to generate the clock instead of oscillator. There are three jumpers to be set for the CPU clock selection. The jumper settings are: Close...

  • Page 12: Cache M E M O R Y Configuration Io

    For 256K cache install 32Kx8 SRAM in locations U43, U34, U35, U36, U37, U39, U40, U41, and U42. VESA VL-Bus Identifier Jumpers (JP19, JP20) The identifier jumpers (JP19, JP20) allow VL-Bus slave to identify the speed of the host CPU.

  • Page 14: Installation And Operation

    Chapter 3: Installation and Operation Installation and Operation Before You Begin Before removing the motherboard from its anti-static bag, you need to eliminate any static electricity that may be accumulated on your body. The charge that can build up in your body may be more than enough to damage integrated circuits on the system board.

  • Page 15: Installing The Simm Modules

    Chapter 3: Installation and Operation Installing The SIMM Modules The 80486VESA system board can accommodate up to a maximum of 32 megabytes of memory on board using 8 sockets for the standard 30-pin SIMM memory modules. Two banks of SIMM modules are available for use with 256KB x 9, lMB x 9 or 4MB x 9 - 80 nanosecond, fast page mode SIMM memory mod- ules.

  • Page 16: Memory Configuration

    Memory can be installed using 256KB, 1MB or 4MB SIMM mod- ules. The following are all the available memory configurations: 256Kx9 ---- 256Kx9 256Kx9 lMBx9 ---- lMBx9 lMBx9 16MB 4MBx9 ---- lMBx9 4MBx9 20MB 4MBx9 32MB 4MBx9 Table 4: Memory Configurations 80486VESA User’s Manual...

  • Page 17: System Speed Change

    The 80486VESA system board provides an optional 64/128/256KB external cache memory. The internal and external cache enable/ disable selections in the BIOS Advanced CMOS Setup program, will turn ON or OFF, either the 80486VESA’s 8K internal cache or external memory cache. 80486VESA User’s Manual...

  • Page 18: Software Setup

    BIOS Setup and Diagnostics Software Setup After hardware configuration of the 80486VESA system board is completed, and system hardware has been assembled, the com- pleted system may be powered-up. At this point, software setup should be run to ensure that the system information is correct.
  • Page 21 F6: Loads all features in the Advanced CMOS Setup with the BIOS Setup defaults. F7: Loads all features in the Advanced CMOS Setup with the Power-On defaults. F10: Saves all changes made to Setup and exits program 80486VESA User's Manual...

  • Page 22: Standard Cmos Setup

    The standard CMOS Setup utility is used to configure the following features: Set Date: Month, Date, Year. Ranges for each value are listed below in prompt box in the lower left corner of the CMOS Setup Screen. 80486VESA User’s Manual...
  • Page 23 C: and D:. The parameters for type 47 under Hard Disk C: and Hard Disk D: may be different, which effectively allows 2 different user definable hard disk types. 80486VESA User’s Manual - - -...
  • Page 24 Capacity: This is the formatted capacity of the drive based on the following formula: (# of heads) x (# of cylinders) x (# of sectors) x (512 bytes/sec) 80486VESA User’s Manual...
  • Page 25 BIOS Setup Chapter 4: and Diagnostics The following warning message, shown in Figure 5, is displayed each time when either the Standard CMOS Setup or Advanced CMOS Setup is selected, before any changes are allowed to any of the setup parameters. Improper Use of Setup may Cause Problems !! If System Hangs, .

  • Page 26: Advanced Cmos Setup

    Chapter 4: BIOS Setup and Diagnostics Advanced CMOS Setup The Advanced CMOS Setup contains the setup of the system features and the SiS-460 chipset’s configuration registers, to help you achieve an optimum operational environment. From the following menu, highlight the Advanced CMOS Setup option and press <ENTER>: BIOS SETUP PROGRAM AMI BIOS SETUP UTILI T IES (C) 1990 American Megatrends Inc., All Rights Reserved...
  • Page 27 Chapter 4: BIOS Setup and Diagnostics Advanced CMOS Features help screens, The Advanced CMOS Setup program several accessed by the key, which will display the options available <Fl> for a particular feature and special help for some of the options. The following table lists the features and toptions available for each.
  • Page 28 ROMs on them, you will need to k n o w the ROM addresses. After you have made your selection within the advanced CMOS Setup. press <ESC> to return to the main menu. 80486VESA User’s Manual...

  • Page 29: Auto Configuration With Bios Defaults

    L o a d BIOS Setup Default Values for Advanced CMOS and Chipset ESC:Exit t-+L?: S e l e c t F2/F9: C o l o r F10:Save & E x i t Figure 8: Auto Configuration w/ BIOS Defaults Menu 80486VESA User’s Manual...

  • Page 30: Hard Disk Utility

    Auto Configuration with Power-On Defaults The “Auto Configuration with Power-On Defaults” loads the settings detected when you turn on the computer. If your svstem behaves erractically, you can use this feature to check for incorrect settings. From the following menu, highlight the feature from the main menu and press <ENTER>.
  • Page 31 Chapter 4: BIOS Setup and Diagnostics Write to CMOS and Exit/Do not Exit After completion of all selections, move the cursor down to either “Write to CMOS and Exit” or “Do not Write to CMOS and Exit” to save the data/values changed, or to abandon all the changes and continue with the booting process.
  • Page 32 Disk Drive Types 3 0 0 6 1 5 65535 6 15 65535 65535 65535 65535 65535 65535 65535 1024 6 5 5 3 5 7 5 4 65535 65535 6 5 5 3 5 1024 65535 1024...
  • Page 33 Appendix A Disk Drive Types (Cont.) 43MB 1024 1024 1024 10MB 77MB 65535 1024 1024 68MR 1024 1024 41MB 6 1 5 25MB 57MB 41MB 41MB 41MB 48M II 69MB 65535 114MB 65535 9 I 7 152MB 1223 1224 65535...

  • Page 34: Specifications

    BIOS: AMI (American Megatrends, Inc.) Environment: Operating Temperature: 10 degrees C to 40 degrees C. Required Airflow: 50 linear feet per min. across 80486 Humidity: 0 to 90% noncondensing Altitude: 0 to 10,000 feet above sea level 80486VESA User’s Manual...

  • Page 35: System Requirements

    5.25 volts maximum to 4.95 volts minimum. In areas with noisy power transmission, we suggest the use of a line noise filter between the power and the computer. 80486VESA User’s Manual...

  • Page 36: Troubleshooting

    MEANING OF ERROR # OF BEEPS Refresh Failure - The memory refresh circuitry of the motherboard is faulty. Parity Error - A parity error was detected in the base mrmnry (the first block of 64 KB) of the system. 80486VESA User’s Manual...
  • Page 37 Appendix C Base 64KB Memory Failure - A memory failure occurred within the first 64 KB of memory. Timer Not Operational - Timer #l on the motherboard has failed to function properly. Processor Error - The CPU on the motherboard has generated an error.
  • Page 38 Appendix C Non-Fatal BIOS Error Messages If a non-fatal error occurs during the POST routines performed will appear each time the system is powered on, the error message on the screen in the following format: Message Line 1 ERROR ERROR Message Line 2 press <Fl>...
  • Page 39 Appendix C C: Drive Error - The BIOS is not receiving any response from hard disk C:. It may be necessary to run the Hard Disk Utility to correct this problem. Also, check the type of hard disk selected in the Standard CMOS Setup of the BIOS Setup Program to see if the correct hard disk drive has been selected.
  • Page 40 D: Drive Error - The BIOS is not receiving any response from hard disk D:. It may be necessary to run the I Hard Disk Utility correct this problem. Also, check the type of hard disk selected in the Standard CMOS Setup of the BIOS Setup Program to see if the correct hard disk drive has been selected.
  • Page 41 Make sure you have an AMI Keyboard BIOS installed in your system. You may also set the “Keyboard” option in the Standard CMOS Setup to “Not Installed”, which will cause the BIOS to skip the keyboard POST routines. User’s 80486VESA Manual...
  • Page 42 Keyboard is Locked...Unlock It - The keyboard l o c k on the system is engaged. The system must be unlocked to continue the boot up procedure. No ROM BASIC - This error occurs when a proper bootable sector cannot be found on either the floppy diskette drive A: or the hard disk drive C:.

  • Page 43: Warranty Information

    Appendix D Warranty Information Your 80486VESA system board comes with a limited one-year warranty. The manufacturer warrants this product against defects in material and workmanship for one (1) year from date of pur- chase. Defective parts will be exchanged or repaired at the manufacturer’s option, for one (1) year after date of original...

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