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Mylex MAE486 User Manual

486/eisa
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  • Page 2 PREFACE Thank you for your choice of a Mylex 486/EISA System Board product. With proper installation and care, your Mylex System Board will operate for years without any service requirement. This manual will guide you in the installation process. The information contained herein is subject to change without notice.
  • Page 3 Preface This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class Acomputing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a...

  • Page 4: Table Of Contents

    ....I-3 Contents ....Chapter 1, Product overview MAE486 features ........l - l Microprocessor .....
  • Page 5 Installing system board components ......4-3 Installing BIOS chips ........4-6 Installing a math coprocessor in the MAE486 ....4-7 Installing SIMM memory .......4-8 MAE486 memory configurations ..... .4-8 MBE486 memory configurations .....
  • Page 6 Table of Contents Appendix A, Specifications Appendix B, Bank and bit locations Memory organization ........B - l Diagnostic information ........B - l SIMM locations ......... B-2 Appendix C, Quick reference Warrantv and service Installation and Operation Guide...

  • Page 7: Precautions

    Introduction This Installation and Operation Guide describes how to configure and install the MAE486 and MBE486 system boards. Any information that pertains to one system board, but not the other, will be clearly identified. Precautions Before you unpack your components, observe the...

  • Page 8: Unpacking Your Components

    A warranty registration card. If any components are missing or damaged, con- tact your dealer immediately. Please complete the warranty registration car and return it to Mylex Corporation. This will protect your system board if it ever needs service. What else need...

  • Page 9: Using This Guide

    Chapter 2, Configuring the MAE486 - describes how to use the on-board jumpers to configure the MAE486 system board. If you have the MBE486 system board, you can skip this chapter; the Installation and Operation Guide...
  • Page 10 Appendix C, Quick reference - shows the lay- out of the MAE486 and MBE486 system boards, summarizes the jumper settings for the MAE486 system board, and lists the connectors found c both the MAE486 and MBE486 system boards.
  • Page 11 ISA-compatible systems. An ad- ditional 8K-byte RAM is also included in a Dallas The MAE486 bus provides six slots for bus mas- ter devices. These are the six slots closest to the power supply connector. The remaining two slots are designed to accept EISA devices other than bus master devices.

  • Page 12: Chapter 1, Product Overview

    Megabytes. Memory cache For added performance in multitasking environ- ments, the MAE486 provides 128KB of write- back cache in addition to the 8KB internal cache of the 80486. Shadow RAM Shadow RAM provides much faster RAM access to the information normally stored in ROM.

  • Page 13: Jumpers

    Product overview MAE466 features Jumpers There are 14 BERG option jumpers on the MAE486 system board, 10 of which are used for setting the memory size, and four set perma- nently at the factory. For more information, refer to Chapter 2.

  • Page 14: Mbe486 Features

    MBE488 features Product overview MBE486 features The MBE486 system board is a cost-effectiy system board designed for entry-level worh stations. The MBE486 provides the following features: Microprocessor INTEL 25MHz 80486 microprocessor. The MBE486 supports the EISA specification. The MBE486 provides two files of nonvolatile architecture RAM.

  • Page 15: Nonvolatile Ram

    Product overview the POST memory count) will be the actual amount of memory installed minus 384KB. The configuration of the shadow BAM is achieved by the BIOS installed on the MBE486 or by other user-supplied sbfiware. The shadow BAM must be enabled by the system SETUP program for the BIOS.

  • Page 16: Chapter 2, Configuring The Mae486

    Chapter 2, Configuring the MAE486 This chapter describes the functions of the jump- ers found on the MAE486 system board. The MAE486 system board has several user-con- figurable jumpers. Before you install the MAE486 system board into a computer chassis, set all on-board jumpers to the configuration you desire.
  • Page 17 Jumper locations Configuring the MAE466 Figure 2-1. Jumper locations on the MAE486 system board Note: Earlier revision boards have different locations for option jumpers. How- ever, the number assigned to each jumper will be the same. Installation and Operation Guide...

  • Page 18: Summary Of Jumper Settings

    Configuring the MAE466 Summary of jumper settings Summary of jumper settings Table 2-l lists the jumpers on the MAE486 sys- tem board, their function, and the page to turn to for more information about them. Table 2-1. MAE486 jumper summary...

  • Page 19: Jumper Functions

    Configuring the MAE466 Jumper functions Jumper functions The following sections describe the functions the jumpers found on the MAE486 system boarL. External cache (Jl) l-2 - enable external cache (default) OPEN - disable external cache Jumper is a reserved jumper, intended to be used only at the factory.

  • Page 20: On-Board System Memory (53 Through 512)

    On-board system memory (53 through 512) Jumpers 53 through 512 define the amount of on-board memory installed on the MAE486 sys- tem board, as shown in Table 2-2. Table 2-2. Jumper settings for on-board mem-...
  • Page 21 Configuring the MAE486 Jumper functions SIMM sockets (U96 through U103) Sockets U96 through U103 accept SIMM mem modules, refer to Chapter 3. Installation and Operation Guide...

  • Page 22: Chapter 3, Connectors

    Chapter 3, Connectors This chapter describes the connectors found on the MAE486 and MBE486 system boards. The pin assignments for these connectors are in- cluded in this chapter. Connector locations The MAE486 and MBE486 system boards have several connectors. Before you install these sys-...
  • Page 23 Connectors Connector locations Figure 3-1. Connector locations on the MAE486 system board Installation and Operation Guide...
  • Page 24 Connector locations Connectors Figure 3-2. Connector locations on the MBE486 system board Installation and Operation Guide...

  • Page 25: Connectors And Pin Assignments

    Connectors Connectors and pin assignments Connectors and pin assignments The MAE486 and MBE486 system boards h, four connectors. Table 3-1 summarizes t. functions of these connectors. Note: No external battery is required on the sys- tem boards. The basic EISA SETUP and EISA...

  • Page 26: Turbo Light Connector

    Turbo light connector A connection to indicate CPU operating frequ- ency with an external LED is provided at connec- tor Pl3 (for the MAE486) or 5205 (for the MBE486). The LED is ON when the CPU is operating at the higher clock speed.

  • Page 27: Keyboard Iocwpower Light Connector

    Keyboard lock/power light connector Connectors Keyboard lock/power light connector IBM PC AT standard connector is provided fi “Power” LED at COI. the keylock and front panel External resistors to limit the power LED cur- rent are not required. Table 3-3 shows the pin assignments for this connector.

  • Page 28: Reset Switch Connector

    Reset Connectors switch connector Reset switch connector A connektion for a reset switch is provided at connector P14 (for the MAE4861 or 5222 (for the If you short pin 1 to pin 2 on this connector, the system will go through a “cold boot” (power-on) reset operation.

  • Page 29: Speaker Connector

    Speaker connector Connectors Speaker connector A standard speaker connection is provided connector Pll (for the Table 3-5 shows the pin assignments for this connector. Table 3-5. Speaker connector pin assignments Installation and Operation Guide...

  • Page 30: Chapter 4, Installation

    How to install the system board into a com- puter chassis. Building a complete system You will need the following components to build a complete system using the MAE486 or MBE486 system board: A standard chassis. The MAE486 and MBE486 system boards are 13.8 inches long by 12 inches wide.

  • Page 31: Precautions

    Precautions Installation Video card (monochrome, CGA, EGA, or PGA). Monitor. AT-compatible keyboard (84 or 101 keyboard‘ Flat-ribbon cables between the hard drive/floppy controller and the drives. Combination of serial and parallel peripheral cards. Modem and/or FAX peripheral boards. Tape backup drive. Precautions Observe the following precautions before handling and installing the system boar?

  • Page 32: Power Supply

    (see page 4-7). Installing SIMM memory modules on the MAE486 or MBE486 system board (see page Figure 4-l shows the layout of the MAE486 sys- tem’ board. Figure 4-2 shows the layout of the MBE486 system board. Installation and Operation Guide...
  • Page 33 Installing system bard components Installation Figure 4-1. MAE488 system board layout Installation and Operation Guide...
  • Page 34 Installation Installing system board components Figure 4-2. MBE486 system board layout Installation and Operation Guide...

  • Page 35: Installing Bios Chips

    “EISA BIOS 486 MBE rev xx” where the chip will be installed: For the MAE486 - U7 (see Figure 4-l) For the MBE486 - U035 (see Figure 4-2) 1 of the socket by aligning the notch on the chip with the silkscreened notch on the system board.

  • Page 36: Installing A Math Coprocessor In The Mae486

    Installing system board components Installing a math coprocessor in the MAE486 A Weitek 4167 math coprocessor can be installed on the MAE486 system board (no external math coprocessor is required on the MBE486 system board). To install the math coprocessor:...

  • Page 37: Installing Simm Memory

    This arrangement allows the system boards to be configured for the memory configurations described in the following sections. MAE486 The MAE486 system board can be set up fp-- single-bank or double-bank operation. memory configurations In single-bank operation, SIMMs are installed in only the first bank of memory sockets (U96 through U99) on the system board;...
  • Page 38 Verify that the memory to be installed has the proper access time. Memory installed on the MAE486 and MBE486 system boards must have an access time of 80ns or faster with fast page mode support (20ns CAS access time or faster).
  • Page 39 SIM sockets installed in the system. Note: On the MAE486, banks U96 through U99 must be filled before the next bank is used. Make sure the SIMM faces the front of the chassis (away from the IU connector).
  • Page 40 Installing system board components Figure 4-4. Installing SlMMs onto the system board For the MAE486, set the system board jump- ers to reflect the current amount of on-board memory, shown in Table 4-l. (The MBE486 does not require user settable jumpers to be changed for different memory configurations).
  • Page 41 Installation Installing system board components Table 4-1. MAE486 Jumper settings for on- board memory _____ 4-12 Installation and Operation Guide...

  • Page 42: Installing The System Board

    Installation Installing the system board Installing the system board The MAE486 and MBE486 system boards are manufactured with holes for mounting screws and standoffs for several AT-compatible chassis. Not all mounting holes will be used during the installation. When installing the system board, verify that the...
  • Page 43 Installing the system board Installation Mountingscrews Standoffs Figure 4-5. Standoff pieces on the chassis Connect the following cables from the syste to the system board (refer to Chapter 3): Power supply, Speaker. Keyboard lock/power LED front panel dis- play Reset. Turbo LED.
  • Page 44 BIOS installed on the system board. The SETUP utility must be used when the system is first turned on. The manual for the BIOS used on the MAE486 and MBE486 system boards provides important information about the execution and operation of the SETUP utility.

  • Page 45: Appendix A, Specifications

    Appendix A, Specifications General Products MAE486 and MBE486 system boards Microprocessor INTEL 25MHz 80486 On-board MAE486 - 1,2,4,8,16, or 32 Megabytes, using memory MBE486 - 2,8, or 32 Megabytl es, using 256KB, Word size 32 bits Jumpers MAE486 - 14 BERG jumpers...
  • Page 46 Specifications Expansion slots Expansion slots Eight EISA slots, accepting any combination cP 32-bit, 16-bit, and &bit peripheral boards. Power requirements -5Volts: O.OA typical -12Volts: O.OA typical Operating environment Temperature Humidity Up to 90% (noncondensing) Dimensions Refer to Figure A- 1. Installation and Operation Guide...
  • Page 47 Dimensions Specifications 00 156 60156 Figure A-l. System board dimensions Installation and Operation Guide...

  • Page 48: Appendix B, Bank And Bit Locations

    Appendix B, Bank and bit locations Memory organization The MAE486 and MBE486 system boards on- board memory is divided into two SIMM memory banks. Each bank consists of four SIMM sockets. MAE486 - possible memory configurations include 1,4, or 16 Megabytes (for single-bank operation) or 2,8, or 32 Megabytes (for double- bank operation).

  • Page 49: Simm Locations

    SIMM modules installed (256KB x 9, 1MB x 9, or 4MB x 9). Table B-l shows the extended memory bank usage on the MAE486 system board. Table B-2 shows the extended memory bank usage on thl MBE486 system board.
  • Page 50 Bank and bit locations SIMM locations Table B-l. MAE486 address locations Single Bank Bank 0 Bank 0 Bank 0 Bank 0 256KB x 9 0-1024KB _ ____.-- 1 MB x 9 0-4096K.B Bank0 Bank 0 Bank 0 Bank 0 4MB x 9...
  • Page 51 SIMM module, as shown in Tables B-l and B-2. For example, assume an MAE486 system boar& contains 1MB SIMMs and that a diagnostic reports the address 2306KB. Using Table B-l, Installation and Operation Guide...
  • Page 52 SIMM locations Bank and bit locations you can find that this address is located in Bank After you select the correct bank based on the reported address, you can isolate the faulty SIMM with the corresponding column in Table B-l or B-2. Note: Do not remove a SIMM module without first turning off the system, removing the system’s power cord from the AC outlet, and...

  • Page 53: Appendix C, Quick Reference

    Appendix C, Quick reference Appendix C provides the following quick-refer- ence information: A layout of the MAE486 and MBE486 system boards. A summary of the MAE486’s jumper settings. A summarv of the connectors on the MAE486 and MBE486 system boards.
  • Page 54 Quick reference Figure C-l. Layout of the MAE486 system board Installation and Operation Guide...
  • Page 55 Quick reference Figure C-2. Layout of the MBE488 system board Installation and Operation Guide...
  • Page 56 - 25MHz operation (default) (factory use 2-3 - 33MH.z operation only) Specifies the amount of on-board memory (see Table C-2). Accept SIMM memory modules. Table C-2. Jumper settings for the MAE486 on-board memory 32MB Jumper 1MB 16MB OPEN OPEN OPEN...
  • Page 57 Quick reference Table C-3. Turbo light connector pin assignments Table C-4. Keyboard lock/power LED connector pin assignments Function LED power (+5 Volts DC) Not used (key) Ground Keyboard lock Ground Installation and Operation Guide...
  • Page 58 Quick reference Table C-5. Reset switch connector pin assignments This connector is labeled P14 on the MAE486 and 5222 on the MBE486. Table C-6. Speaker connector pin assignments This connector is labeled Pll on the MAE486 and 5204 on the MBE486.
  • Page 59 Index BIOS chips Expansion, A-2 installing, 4-6 Building a complete system, 4-1 Bus architecture Features MAE486, l-l MAE486, l-1 MBE486, l-4 MBE486, l-4 Cache enable/disable jumper (Jl), Handling system board, 4-2 Cache memory MAE486, l-2 Complete system Installation building, 4-l...
  • Page 60 Index MAE486 features, l-l Pin assignments, 3-4 Math coprocessor keyboard lock/power LED, 3-6 installing, 4-7 reset switch, 3-7 MAE486, l-2 speaker, 3-8 MBE486, l-5 turbo LED connector, 3-5 MBE486 features, l-4 Power requirements, A-2 Memory Power supply, 4-3 diagnostic information, B-l...
  • Page 61 Index Summary of jumper settings, 2-3 System board components See Components Turbo LED connector, 3-5 Uninstalled components, 4-3 Weitek math coprocessor, 4-7 Index-3 Installation and Operation Guide...

  • Page 62: Warrantv And Service

    Customer and service Mylex Corporation is happy to assist and support its customers. If you have trouble or questions relating to any purchased equipment, please call our support number (415) 663-4600. Do not return any equipment without first calling this number.
  • Page 63 4 7 6 5 0 W E S T I N G H O U S E GRIVE FREMONT. CALIFORNIA 94539...
  • Page 64 Page 1 MAE466 Release Notes Mylex Product Bulletin MAE488 Product: Release Notes Title: Date: MAE466, which includes three new PAL chips and a new EISA Con- figuration Utility, offering increased compatibility with add-in boards. and earlier) 1) The Phoenix BIOS will not operate property with the EISA Con- figuration Utility.
  • Page 65 The current version of the MAE486 has been manufactured with eight 32-bit I/O slots. Prior versions of the MAE486 had one ISA 16- bit slot and one ISA 8-bit slot. Note that EISA bus-master boards, such as the Mylex DCE376, are supported only in the first six 32-bit slots (those closest to the power supply connector).
  • Page 66 P a g e MAE486 Release Notes Rev. P --> 4A release Hardware Phoenix v 1.04 BIOS Rev. 4A-B -> C - new PALS Hardware to add EISA ID & accommodate ISA bus-masters Rev. 4A-C -> D - PAL change...
  • Page 67 Page 4 MAE486 Release Notes The following add-in products have been tested with the MAE486, and the following observations have been noted: Floppy format problem with Phoenix BIOS. Adaptec AHA- 54x 1) Requires Rev. 48-l D or later to run...
  • Page 68 Page 5 MAE488 Release Notes The MAE486/25 has been tested with the following software products, and the following observations have been noted: No problems reported. Clock and calendar test fails, Check-it (~2.1) although working properly. Need Phoenix BIOS ~2.0. MCS EISA Configuration Utility No problems reported.
  • Page 69 Answer: It is necessary to do a warm boot after power-up to write EISA programming information from the non- volatile RAM to any EISA peripheral board. Phoenix en- gineers are working on this problem. The Mylex BIOS...
  • Page 70 MAE466 Release Notes Page 7 following flier are contalmd on the MCS EISA Conflguratlon dlakette: 2674 4928 4717 1694 7320 353940 6115 LOGO SYSTEM SCI Copyright cp 1990 by Mylex Corporation...
  • Page 71 MAE486 Release Notes Page8 The following errata on Revision 1 .O (April, 1990) of ElSA466Syslem Boards have been found. Replacement manual pages are provided with these release notes. The replaced pages should be discarded. Page 2-2: Jumper 52 is shown in Figure 2-l as a e-pin BERG con- nector.

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