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American Megatrends Enterprise-II User Manual

American Megatrends Enterprise-II User Manual

American megatrends enterprise-ii motherboards: user guide
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American Megatrends, Inc.
Series 16
Enterprise-II
80486 EISA
Motherboard
User's Guide
MAN-616
10/21/92

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Summary of Contents for American Megatrends Enterprise-II

  • Page 1 American Megatrends, Inc. Series 16 Enterprise-II 80486 EISA Motherboard User's Guide MAN-616 10/21/92...
  • Page 2 American Megatrend's discretion according to the terms and conditions on the Enterprise-II motherboard warranty card. American Megatrends shall not be liable in tort or contract for any loss or damage, direct, incidental or consequential. Please see the Warranty Registration Card shipped with this product for full warranty details.

  • Page 3: Table Of Contents

    Section 3 ADVANCED CMOS SETUP ... 55 Typematic Rate Programming, Rate, Memory Test Tick Sound ... 57 Hit <DEL> Message Display ... 57 System Boot Up Num Lock ... 59 American Megatrends Enterprise-II Motherboard User's Guide and Delay ... 56 Extended Memory Test ... 57...
  • Page 4 Hard Disk Format Utility ... 65 Auto Interleave Utility ... 67 Hard Disk Utility Error Messages ... 69 Appendix A 32-Bit Enterprise-II Memory Card ... 71 Appendix B EISA Configuration Worksheets ... 73 Appendix C Heat Dissipation ... 91 Index ... 93 Preface Password Check Option ...
  • Page 5 J37. These jumpers select the processor type and speed. Support for Additional Processors Rev G of the Enterprise-II now support the Intel 80486SX, 80487SX, P23T, P24, and the 80486DX. Support for Additional Processor Speeds American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 6 Rev G of the Enterprise-II will now support the following processor speeds: 80486DX 25, 33, and 50 MHz 80486SX 25 MHz 80487SX 25 MHz Preface...
  • Page 7 The name of J22 has been changed to Interrupt Latch Disable. This jumper is always shorted. American Megatrends BBS The American Megatrends BBS permits OEMs, VARs, and system integrators to access technical information about motherboard and BIOS products. Product Engineering Change Notices, Tech Tips, Technical Notes, and technical manuals are available on the BBS.

  • Page 9: Chapter 1 System Overview

    12 inches long (identical in size to a standard IBM AT motherboard with similar mounting hole locations). The following graphic illustrates the dimensions of the Enterprise-II motherboard and identifies the height restrictions. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 10 The Enterprise-II EISA motherboard comes with either an 80486DX operating at 25, 33, or 50 MHz or an 80486SX operating at 25 MHz. The Enterprise-II also supports future Intel processors and upgradable processors. 80486SX-equipped Enterprise-II motherboards support an 80487SX operating at 25 MHz.
  • Page 11 RAM. Up to 4 gigabytes of memory are supported on the EISA bus. SIMMs The Enterprise-II supports 1 MB x 9 or 4 MB x 9 fast page mode SIMMs operating at 70 ns (RAS access time), fast page mode at 25, 33, and 50 MHz.
  • Page 12 Description, Continued BIOS The Enterprise-II has a 128 KB EISA AMIBIOS located at E000–FFFFh with built- in Setup, hard disk drive diagnostics, and user-definable hard disk drive types. The EISA AMIBIOS allows you to bypass error messages for missing video, keyboard, or...
  • Page 13 Description, Continued Seven DMA Channels The Enterprise-II has seven DMA channels. In accordance with the EISA specifications, any DMA channel may be programmed for 8, 16, or 32-bit DMA device size and ISA compatible, type A, type B, or burst type C modes.
  • Page 14 32-, 16-, 8-bit I/O devices on the EISA bus. EISA Bus The EISA Bus in the Enterprise-II has a system clock that is generated by the EISA bus clock (BCLK) and operates at 8.33 MHz. I/O Slots...
  • Page 15 The Enterprise-II uses 32-bit memory addresses to access 4 gigabytes of memory address space on the EISA expansion slots. I/O Channel Check The Enterprise-II supports the use of the I/O channel check to generate NMIs. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 16 The Enterprise-II supports refresh of system memory from channel microprocessors. Keyboard The Enterprise-II uses a 5-pin IBM AT- compatible DIN connector and has a keyboard lock to prevent unauthorized access. Mouse The Enterprise-II has a 6-pin IBM PS/2®- compatible mini-DIN connector.

  • Page 17: Chapter 2 Installation

    1 megohm resistor serves the same purpose as the wristband. Inside the carton, the Enterprise-II motherboard is packed in an anti-static bag, and sandwiched between sheets of sponge. Remove the sponge and remove the anti-static bag. Place the Enterprise-II motherboard on a grounded anti-static surface component side up.
  • Page 18 Chapter 2 - Installation...

  • Page 19: Installation Steps

    Connect cables Install adapter cards Test and configure Warning The Enterprise-II motherboard contains sensitive electronic components which can be easily damaged by static electricity. Follow the instructions carefully to ensure correct installation and to avoid static damage. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 20: Step 1 Set Switch And Jumper Options

    Step 1 Set Switch and Jumper Options Set all user-configurable jumpers and switches and install coprocessors before installing the motherboard in the chassis. There are two user-configurable switches and five jumpers. SW is a dual 2-bit DIP switch. SW-1 is used for manufacturing diagnostics.
  • Page 21 J37 FERR# Pin Select This jumper selects processor type. Short pins 2-3 if an 80487SX is used. Leave J37 open if an 80486SX is used. Short pins 1-2 if an 80486DX or P24 is used. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 22 Step 1 Set Switch and Jumper Options, Continued Selecting the Processor Speed Processor Speed J2 * 80486DX 25 MHz Short pins 1- 33 MHz Short pins 1- 50 MHz Short pins 1- 80486SX 25 MHz Short pins 1- 80487SX 25 MHz Short pins 1- Leave J2 open if the processor is a B6 or earlier version of an i486.

  • Page 23: Step 2 Install Memory

    In-line Memory Module) DRAM packages. You can use 1 MB or 4 MB x 9 bit SIMMs. Motherboard Memory Configurations The 80486 Enterprise-II supports 4 MB, 8 MB, 16 MB, and 32 MB memory configurations on the motherboard. Selecting SIMMs The table on the following page has SIMM part numbers.
  • Page 24 1 MB x 9 or 4 MB x 9 SIMMs. Use only one type of module to fill each bank. Place the 80486 Enterprise-II motherboard on an anti-static mat. With the component side of the SIMM facing you, firmly push...
  • Page 25 Step 2 Install Memory, Continued SIMM Installation The following graphic demonstrates how to install SIMMs. SIMM Types The graphic below shows the two types of SIMMs. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 26 Step 2 Install Memory, Memory Configuration The 80486 Enterprise-II motherboard checks the memory banks and automatically configures the amount of memory installed in the SIMM sockets. There are no user definable jumper or switch settings for configuring memory. The following table shows the total system...

  • Page 27: Step 3 Install Coprocessor

    Math Coprocessor field, reinstall the coprocessor. Turn power off, check the coprocessor orientation, press the chip firmly in place and turn the power on. If still not American Megatrends Enterprise-II Motherboard User's Guide Part Number WTL4167-025 WTL4167-033 also...
  • Page 28 properly installed, call Technical Support. Chapter 2 - Installation...

  • Page 29: Step 4 Install The Motherboard

    Step 4 Install the Motherboard The mounting hole pattern on the Enterprise-II is the same as the mounting hole pattern on the AT motherboard. Standoffs and mounting screws are not supplied with the Enterprise-II motherboard. The following table describes the installation.

  • Page 30: Step 5 Connect The Power Supply

    Step 5 Connect the Power Supply The power supply should match the physical configuration of the chassis. Make sure that the power switch is Off before assembly. Before attaching all components, make sure that the proper voltage has been selected. Power supplies often can run on a wide range of voltages, but must be set (usually with a switch) to the proper...
  • Page 31 The connectors should be keyed to prevent connecting the plugs to the wrong connectors. The keys on the connector must be cut to fit on some power supplies. The following figure illustrates the keys that must be cut. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 32 Step 5 Connect the Power Supply, Continued See the following figure for the location of connectors PS1, PS2, and PS3. AT-compatible power supplies have two 6- pin connectors that are inserted in PS1 and PS2. The 6-pin connector with 3 red wires and 2 black wires is connected to PS2 and the remaining 6-pin connector is connected to PS1.
  • Page 33 -5 Volts (White wire) VCC (Red wire) VCC (Red wire) VCC (Red wire) PS3 Pinout Description VCC (Red wire) VCC (Red wire) VCC (Red wire) Ground (Black wire) Ground (Black wire) Ground (Black wire) American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 34: Step 6 Connect The Keyboard Cable

    Step 6 Connect the Keyboard Cable The keyboard connector on the Enterprise- II is a 5-pin DIN socket and is labeled KEYBRD and J7 on the motherboard. It works with a standard AT-compatible keyboard. A 5-pin DIN to 6-pin mini DIN converter is needed to connect a PS/2-type keyboard.

  • Page 35: Step 8 Connect Cables

    · Reset Switch cable to J17 · Speaker cable to J13. · Keyboard Lock cable to J14. · Turbo Switch cable to J18 · Turbo LED cable to J19 J17 Reset Button Connector American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 36 J17 is a 2-pin single-inline berg. When this button is pressed, the system performs a hard reset. Pin 1 is ground and Pin 2 is Hard Reset. Chapter 2 - Installation...
  • Page 37 LED power Ground Keyboard lock Ground J18 Turbo Switch Connector J18 is a 2-pin single-inline berg. The turbo switch allows the user to switch the motherboard clock speed between high and low speeds. American Megatrends Enterprise-II Motherboard User's Guide Continued...
  • Page 38 Step 8 Connect Cables, Continued J19 Turbo LED J19 is a 2-pin berg. The LED lights when the board is running at high speed. Connect the Turbo LED to J19. Floppy Drive Controller J8 is a 34-pin dual-inline berg connector for floppy drives.
  • Page 39 The Enterprise-II supports up to two 3½" or 5¼" floppy disk drives. The connecting cable is a 34-pin ribbon cable with two 34-pin edge connectors. There should be a twist in the cable between the floppy connectors, and the last (end) connector should be connected to drive A:.
  • Page 40 Step 8 Connect Cables, Floppy Pinout Twist in Floppy Cable Floppy B to Floppy A Floppy B to Floppy 10 to 16 12 to 14 11 to 15 13 to 13 Chapter 2 - Installation Continued RPM/LC -INDEX -MOTOR0 -FDSEL1 -FDSEL0 -MOTOR1 -STEP...

  • Page 41: Step 9 Install Adapter Cards

    EISA bus master slot. These slots accept any EISA/ISA adapter card. 7 – 8 EISA non-bus master slot. These expansion slots accept only ISA or EISA adapter cards that do not have EISA bus mastering capability. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 42 Step 9 Install Adapter Cards, Continued EISA adapter cards have longer and denser fingers on the edge connecters than ISA adapter cards. The EISA slots on the motherboard have two rows of contacts, one below the other. The ISA slot can be inserted into the EISA connector only far enough to make contact with the upper row of contacts.
  • Page 43 SA16 SA15 SA14 SA13 SA12 SA11 SA10 SA09 SA08 SA07 SA06 SA05 SA04 SA03 SA02 SA01 SA00 American Megatrends Enterprise-II Motherboard User's Guide Continued RSTDRV IRQ9 DREQ2 OWS- SMEMW- SMEMR- IOW- IOR- DACK3- DREQ3 DACK1- DREQ1 REF- SYSCLK IRQ7 IRQ6...
  • Page 44 Step 9 Install Adapter Cards, 16-Bit ISA Extension Pinout The following 16-bit pins are an extension of the 8-bit board layout and are used in conjunction with the 8-bit board standard pins. SBHE- LA23 LA22 LA21 LA20 LA19 LA18 LA17 MEMR- MEMW- SD08...
  • Page 45 (EISA) contacts. The following table lists the pinouts for Rows F, B, E, and A. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 46 Step 9 Install Adapter Cards, 32-bit EISA Slot Pinout, cont'd Row F Row B 1 GND 1 GND 2 + 5 volts 2 RESDRV 3 + 5 volts 3 + 5 volts 4 xxxxxx 4 IRQ 9 5 xxxxxx 5 - 5 volts 6 Access Key 6 DRQ 2 7 xxxxxx...
  • Page 47 15 DRQ# 7 16 D29 16 + 5 volts 17 + 5 volts 17 MASTER16# 18 + 5 volts 18 GND 19 MAXx# American Megatrends Enterprise-II Motherboard User's Guide Continued Row G Row C 1 LA7 1 SBHE# 2 GND 2 LA23...

  • Page 48: Step 10 Test And Configure

    Step 10 Test and Configure Review the following points before powering up: _ make sure that all adapter cards are seated properly, _ make sure all connectors are properly installed, _ if the math coprocessor is used, make sure it is seated properly, _ make sure there are no screws or other foreign material on the motherboard, _ plug the system into a surge-protected...
  • Page 49 STANDARD CMOS SETUP which begins on page 60. Run the ECU The Series 16 Enterprise-II is an EISA motherboard. You must run an EISA Configuration Utility (ECU) to properly configure the system. The American...
  • Page 50 Enterprise-II motherboard. Chapter 2 - Installation...
  • Page 51 American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 52: Chapter 3 Bios Power-On Self Test (Post)

    POST Phases When the system is powered on, the AMIBIOS executes POST, which has two phases: • System Test and Initialization (test and initialize motherboards for normal operations), and • System Configuration Verification (compare defined configuration with there hardware actually installed).
  • Page 53 If... Then... initialized, to press <F1> can also appear. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 54: Beep Codes

    Beep Codes Errors may occur during POST (Power On Self Test), which is performed every time the system is powered on. Fatal errors (listed below) are usually communicated through a series of audible beeps. All errors except Beep Code 8 are fatal. Fatal errors do not allow the system to continue.
  • Page 55 Beeps Error message CMOS Shutdown Register Read/Write Error American Megatrends Enterprise-II Motherboard User's Guide Description The shutdown register for CMOS RAM has failed.

  • Page 56: Amibios Displayed Error Messages

    Cache memory on the motherboard is defective. Consult the Not Enable Cache! cache memory manufacturer. CH-2 Timer Error Most AT motherboards include two timers. An error occurred in timer 2. CMOS Battery State CMOS RAM is powered by a battery. The battery power is low.
  • Page 57 XXXX is the hex address where the error occurred. Run AMIDiag to find and correct memory problems. Parity Error ???? Parity error in system memory at an unknown address. Run AMIDiag to find and correct memory problems. American Megatrends Enterprise-II Motherboard User's Guide Explanation...

  • Page 58: Eisa Error Messages

    EISA Error Messages Error Message EISA CMOS Checksum The Checksum for EISA CMOS is bad or has never Failure been written. The battery for EISA CMOS RAM may be bad. Run the ECU. EISA CMOS inoperational Read/Write error in extended CMOS RAM. The battery may be bad.

  • Page 59: Bios Configuration Summary Screen

    BIOS Configuration Summary Screen System Configuration (C) Copyright 1985-1991 American Megatrends Inc. Main Processor : 80486 Numeric Coprocessor : Present Floppy Drive A: : 1.2 MB ½ Floppy Drive B: : 1.44 MB ¼ Display Type: :VGA or EGA ROM-BIOS Date:...

  • Page 60: Chapter 4 Amibios Setup

    Chapter 4 AMIBIOS Setup AMIBIOS Features AMIBIOS has several features that can be accessed at any time. Keyboard Speed Switching The end use can increase processor speeds at any time by pressing <Ctrl><Alt><+>. Processor speed can be decreased by pressing <Ctrl><Alt><->. Of course, the OEM can modify these keystroke combinations via AMIBCP.
  • Page 61 ADVANCED CMOS SETUP ADVANCED CMOS SETUP allows the end user to configure more advanced parts of memory configuration, peripheral support, and password support. ADVANCED CMOS SETUP is discussed in Section 4. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 62: Section 1 Running Amibios Setup

    Section 1 Running AMIBIOS Setup A record of the computer's system parameters (such as amount of memory, disk drives, video displays, and numeric coprocessors) is stored in CMOS (Complementary Metal Oxide Semiconductor) RAM. When the computer is turned off, a back-up battery provides power to CMOS RAM, which retains the system parameters.
  • Page 63 Press <Del> to run AMIBIOS Setup. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 64: Setup Key Use

    AMIBIOS Setup Key Use Keystroke <Esc> Returns to previous screen. , , , Move the cursor from one option to the next. <PgUp> and Modify the default value of the options for the highlighted <PgDn>; parameter. If there are fewer than 10 options, <Ctrl> <Ctrl><PgUp>...

  • Page 65: Auto Configuration With Bios Defaults

    If CMOS RAM is corrupted, the BIOS defaults is automatically loaded. To use the BIOS defaults, type Y and press <Enter>. The following message appears: American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 66 Default values loaded. Press any key to continue. Chapter 4 - BIOS Setup...

  • Page 67: Auto Configuration With Power-On Defaults

    This option passes control to the ROM BIOS without writing any changes to CMOS RAM. Type N and press <Enter> to return to the Main Menu. Type Y and press <Enter> to continue the boot process without saving any system parameters. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 68: Section 2 Standard Cmos Setup

    Section 2 STANDARD CMOS SETUP STANDARD CMOS SETUP is the first option on the Main Menu. Press <Enter> at the highlighted selection to display this option. The following screen appears. STANDARD CMOS SETUP Options Date And Day Configuration Ranges for each value are shown in the lower left corner of the Screen.
  • Page 69 <PgUp> and <PgDn>. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 70: Standard Cmos Setup Options

    STANDARD CMOS SETUP Options, Continued Hard Disk Drive C: Hard Disk Drive D: Move the cursor to these fields via and select a hard drive type by pressing <PgUp> and <PgDn>. The hard drive types are listed on page 64. Match the hard disk drive parameters provided by the hard disk manufacturer to a hard disk drive type in this table.
  • Page 71 Capacity The formatted capacity of the drive is : Number of heads X (Number of cylinders) X (Number of sectors per track) X (512 bytes per sector). American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 72: Hard Disk Drive Types

    STANDARD CMOS SETUP Options Hard Disk Drive Types Hard Disk Drive Types Type Cylinders Heads Write Precompensation 65535 65535 65535 65535 65535 65535 65535 65535 1024 65535 65535 65535 1024 65535 1024 65535 1024 1024 1024 65535 1024 Chapter 4 - BIOS Setup Landing Sectors Size...
  • Page 73 Type Cylinders Heads Write Precompensation 65535 65535 1224 65535 Enter disk drive parameters supplied by hard drive manufacturer. American Megatrends Enterprise-II Motherboard User's Guide Landing Sectors Size Zone 69 MB 114 MB 1223 152 MB...

  • Page 74: Monitor

    STANDARD CMOS SETUP Options, Floppy Drive A: Floppy Drive B: Move the cursor to these fields via and select a drive type by pressing <PgUp> and <PgDn>. The settings are 360 KB 5¼ inch, 1.2 MB 5¼ inch, 720 KB 3½ inch, 1.44 MB 3½...

  • Page 75: Section 3 Advanced Cmos Setup

    Password Checking Option, • Video ROM Shadow C000, 32K • Adaptor ROM Shadow C800, 32K Help Screens All AMIBIOS Setup options have help screens accessed by pressing <F1> when the option is highlighted. Warning Message American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 76 A warning message is displayed when ADVANCED CMOS SETUP is selected. Press any key to continue. Chapter 4 - BIOS Setup...

  • Page 77: Advanced Cmos Setup Screen

    When a key is pressed and held down, the associated character is displayed. After a delay specified by the Typematic Rate Delay, the character repeats at the Typematic Rate. When two or more keys are American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 78 pressed and held down simultaneously, only the last key is repeated. Repeating stops when the last key pressed is released, even if other keys are pressed. Chapter 4 - BIOS Setup...

  • Page 79: Extended Memory Test

    1 MB. If disabled, only the first 1 MB of memory is tested. Hit <DEL> Message Display Disabling this option prevents Hit <DEL> if you want to run Setup from appearing when the system boots. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 80 ADVANCED CMOS SETUP Options, Continued Hard Disk Type 47 RAM Area You can specify a user-definable hard disk type for drive C: and drive D:. The type 47 drive parameters must be entered in STANDARD CMOS SETUP (see page 66). This option specifies the type 47 data storage area –...
  • Page 81 Wait for <F1> If Any Error If enabled, the BIOS waits until the end user presses <F1> before continuing after an error message. If disabled, the BIOS continues after the error message. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 82: System Boot Up Num Lock

    ADVANCED CMOS SETUP Options, Continued System Boot Up Num Lock Turns off Num Lock when the system is powered on so you can use the arrow keys on both the numeric keypad and the keyboard. Numeric Processor Specifies that a math coprocessor is configured in the system.
  • Page 83 Fast Gate A20 is an alternate method of enabling Gate A20 that permits faster switching between addresses modes. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 84 ADVANCED CMOS SETUP Options, Continued Password Checking Option This option enables the password check option every time the system boots or the end user runs Setup. If Always is chosen, a user password prompt appears every time the system is turned on. If Setup is chosen, the password prompt appears if Setup is run.

  • Page 85: Section 4 Amibios Password Support

    <Enter>. If the password confirmation is incorrect, an error message appears. If the new password is entered without error, the end user can press <Esc> to return to the Main Setup menu. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 86 AMIBIOS Password Support, Continued Password Storage The password is stored in CMOS RAM after Setup completes. The next time the system boots, the end user is prompted for the password if the password function is present and has been enabled. Using a Password The end user must enter the new password when the password prompt appears and then...

  • Page 87: Section 5 Hard Disk Utility

    They do not work on IDE or SCSI Disk Drives. Warning AMIBIOS Hard Disk Utilities destroy all hard disk data. Back up the data on the hard disk before running this utility. American Megatrends Enterprise-II Motherboard User's Guide Purpose Turn to Page 81 Page 83...

  • Page 88: When To Use Amibios Hard Disk Utilities

    When to Use AMIBIOS Hard Disk Utilities When Conditions Installing a new The hard disk drive hard disk. manufacturer provided a list of bad tracks, the system documentation includes the optimum interleave factor, and the drive is preformatted . Installing a new You do not have a list of bad hard disk.

  • Page 89: Hard Disk Format Utility

    Select Media Analysis to find bad tracks. The following screen appears when Hard Disk Format is selected. Hard Disk Format screen American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 90 Hard Disk Format Utility, Continued Answer the questions on the screen. The first two questions are already completed if only one hard disk drive was selected in Standard CMOS Setup and the cursor is on Interleave. The Disk Drive Type is read from CMOS RAM.

  • Page 91: Auto Interleave Utility

    Disk Utility Screen and press <Enter>. The following appears. The cursor is on Mark Bad Tracks. The default is N. To mark additional bad tracks, type Y and press <Enter>. After selecting options from the Bad Tracks Edit American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 92 Menu, press <Esc>. Type Y and press <Enter> to proceed with the Auto Interleave process. A warning screen appears. Press <Enter> to return to the main Hard Disk Utility screen. To proceed, type Y and press <Enter>. Chapter 4 - BIOS Setup...
  • Page 93 Media Analysis Screen The cursor is on Proceed. The warning screen appears. Press <Enter> to stop. The main Hard Disk Utility screen appears. Type Y and press <Enter> to perform the hard disk drive analysis. American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 94: Hard Disk Utility Error Messages

    Hard Disk Utility Error Messages Initialization Errors Message No Hard Disk There is no hard disk drive in the system but Hard Installed Disk Utility was selected. FATAL ERROR Bad No response from the hard disk, or the hard disk is Hard Disk not repairable.
  • Page 95 Undefined Error - An unidentifiable error condition occurred. Command Aborted Write Fault on A write fault occurred during the write operation on Selected Drive the hard disk drive. American Megatrends Enterprise-II Motherboard User's Guide Continued Explanation...

  • Page 96: Appendix A 32-Bit Enterprise-Ii Memory Card

    Appendix A 32-Bit Enterprise-II Memory Card The 80486 Enterprise-II motherboard supports up to 32 MB of SIMMs on the motherboard. You can install the Series 19 32-bit Memory Card to increase 32-bit memory. All SIMM banks on the motherboard must be filled before installing a 32-bit Memory Card.
  • Page 97 The SIMM banks on the 80486 Enterprise-II motherboard are marked BNK1 and BNK2. The SIMM banks on the 32-bit Memory Card are marked BANK3, BANK4, BANK5, and BANK6. The DIP switch (SW) on the memory board has no effect. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 98 Installing the 32-bit Memory Card Step The memory card has two edge connectors: The 64-pin connector plugs into J20 and the 132-pin connector into J21 on the motherboard. The card has a guide on one end. Hold the board firmly and gently press down until the card is in the slot.
  • Page 99 ___ 4 MB x 9 SIMM Memory Installed: (check the banks installed) Total Amount of Memory: Other Options: American Megatrends Enterprise-II Motherboard User's Guide ___ 1 MB x 9 SIMM ___ 4 MB x 9 SIMM ___ 1 MB x 9 SIMM ___ Bank1...

  • Page 100: Appendix B Eisa Configuration Worksheets

    (check the options installed) Appendix B - EISA Configuration Worksheets...
  • Page 101 ___ 5 Data size ___ 8-bit ___ 16-bit___ 32-bit Timing: ___ Compatible ___ Type A Share: ___ Yes American Megatrends Enterprise-II Motherboard User's Guide ___ No ___ No ___ 16-bit ___ No ___ ROM ___ Virtual ___ Other ___ No...
  • Page 102 EISA Slot 1, cont'd Interrupt Description Edge-Triggered Interrupts: Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 Share: ___ Yes Level-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 Switch and Jumper Settings ______________________________________________________________ ______________________________________________________________ ______________________________________________________________...

  • Page 103: Isa Master

    ___ 5 Data size ___ 8-bit ___ 16-bit___ 32-bit Timing: ___ Compatible ___ Type B Share: ___ Yes American Megatrends Enterprise-II Motherboard User's Guide ___ No ___ No ___ 16-bit ___ No ___ ROM ___ Virtual ___ Other ___ No...
  • Page 104 EISA Slot 2, cont'd Interrupt Description Edge-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Share: ___ Yes Level-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings ______________________________________________________________...
  • Page 105 DMA channels used: ___ 0 ___ 5 Data size ___ 8-bit ___ 16-bit___ 32-bit Timing: ___ Compatible ___ Type B American Megatrends Enterprise-II Motherboard User's Guide ___ No ___ No ___ 16-bit ___ No ___ ROM ___ Virtual ___ Other...
  • Page 106 Share: ___ Yes ___ No Appendix B - EISA Configuration Worksheets...
  • Page 107 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ American Megatrends Enterprise-II Motherboard User's Guide ___ IRQ4 ___ IRQ6 ___ IRQ9 ___ IRQ11 ___ IRQ14 ___ No ___ IRQ4 ___ IRQ6 ___ IRQ9...
  • Page 108 EISA Slot 4 Card Description: __________________________________________ Manufacturer: __________________________________________ EISA Master: ___ Yes ___ 16-bit___ 32-bit ISA Master: ___ Yes ___ 8-bit Memory Description Space is provided below for configuration information for two memory banks. Some EISA adapter cards have up to eight memory banks. Duplicate this sheet if there are more than two memory banks.
  • Page 109 Share: ___ Yes ___ No American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 110 EISA Slot 4, cont'd Interrupt Description Edge-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Share: ___ Yes Level-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings ______________________________________________________________...

  • Page 111: Isa Master

    ___ 0 ___ 5 Data size ___ 8-bit Timing: ___ Compatible ___ Type B Share: ___ Yes American Megatrends Enterprise-II Motherboard User's Guide ___ No ___ No ___ 16-bit ___ No ___ ROM ___ Virtual ___ Other ___ No ___ ROM...
  • Page 112 EISA Slot 5, cont'd Interrupt Description Edge-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Share: ___ Yes Level-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings _________________________________________________________...
  • Page 113 DMA Channel Description DMA channels used: ___ 0 ___ 5 Data size ___ 8-bit Timing: ___ Compatible ___ Type B American Megatrends Enterprise-II Motherboard User's Guide ___ No ___ No ___ 16-bit ___ No ___ ROM ___ Virtual ___ Other ___ No...
  • Page 114 Share: ___ Yes ___ No Appendix B - EISA Configuration Worksheets...
  • Page 115 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings _________________________________________________________ _________________________________________________________ _________________________________________________________ American Megatrends Enterprise-II Motherboard User's Guide ___ IRQ4 ___ IRQ6 ___ IRQ9 ___ IRQ11 ___ IRQ14 ___ No ___ IRQ4 ___ IRQ6 ___ IRQ9...
  • Page 116 EISA Slot 7 Card Description: __________________________________________ Manufacturer: __________________________________________ EISA Master: ___ Yes ___ 16-bit___ 32-bit ISA Master: ___ Yes ___ 8-bit Memory Description Space is provided below for configuration information for two memory banks. Some EISA adapter cards have up to eight memory banks. Duplicate this sheet if there are more than two memory banks.
  • Page 117 Share: ___ Yes ___ No American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 118 EISA Slot 7, cont'd Interrupt Description Edge-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Share: ___ Yes Level-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings ______________________________________________________________...
  • Page 119 ___ 0 ___ 5 Data size ___ 8-bit Timing: ___ Compatible ___ Type B Share: ___ Yes American Megatrends Enterprise-II Motherboard User's Guide ___ No ___ No ___ 16-bit ___ No ___ ROM ___ Virtual ___ Other ___ No ___ ROM...
  • Page 120 EISA Slot 8, cont'd Interrupt Description Edge-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Share: ___ Yes Level-Triggered Interrupts Interrupt line used: ___ IRQ3 ___ IRQ5 ___ IRQ7 ___ IRQ10 ___ IRQ12 ___ IRQ15 Switch and Jumper Settings ______________________________________________________________...
  • Page 121 American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 122: Appendix C Heat Dissipation

    Megatrends motherboards and CPU Cards that have a 50 MHz 80486DX or 66 MHz 80486DX2 CPU. Since American Megatrends manufactures only the motherboard and CPU Card system components, it has no control over operating factors such as air flow and ambient temperature inside the computer case.
  • Page 123 Potential Solutions • Install a fan to increase the air flow over the CPU. Some power supplies may have larger or more powerful fans. • Install a different heat sink with a greater surface area. American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 124 • Different case styles may have better ventilation allowing for more air-flow over the CPU. Appendix C Heat Dissipation...

  • Page 125: Index

    POST Phases 39 BIOS Setup 45 Board Layout 10 C: Drive Error 41 Cables 26 CMOS Display Type Mismatch 41 CMOS Shutdown Register Read/Write Error 40 CMOS System Options Not Set 41 Configuring System 36 American Megatrends Enterprise-II Motherboard User's Guide...
  • Page 126 Installing 19 EGA Adapters 12 EISA Adapter Card Pinout 33, 35 EISA Configuration Worksheets 73 EISA Expansion Slots 30-33 Enterprise-II Graphic 10 Fast Gate A20 59 Fast Gate A20 Options 59 Floppy Disk J12 Floppy Disk Type 12 J8 Connector 28...
  • Page 127 Floppy connector 29 POST 39 Memory Test 44 Phases 39 Power Supply 21 Pinouts 24 Processor error 40 Processor Speed 2 PS1 21 PS2 21 PS3 21 Reset Button Connector 26 ROM Shadow 60 SCSI 65 American Megatrends Enterprise-II Motherboard User's Guide...

  • Page 128: Unpacking The Motherboard

    Index, Continued Setup 45 Auto Configuration 49 Auto Configuration, BIOS Defaults 49 Auto Configuration, Power-On Defaults 50 Fast Gate A20 59 Key Usage 48 Main Menu 49 Running Setup 47 Typematic Rate Delay and Typematic Rate 56 Warning Message 49 Warning Screen 55 SIMMs 15 Installing 16...

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