Instruction/ maintenance manual of the product Megathon American Megatrends
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Megathon ® AMD Athlon ® PCI ISA Motherboard User's Guide MAN-804 2/9/00.
Megathon PCI Motherboard User’s Guide ii © Copyright 2000 American Megatrends, Inc. All rights reserved. American Megatrends, Inc. 6145F Northbelt Parkway Norcross, GA 30071 This publication contains proprietary information which is protected by copyright.
Preface iii Table of Contents 1 Hardware Installation .................................. 1 Overview ..................................................................................... 1 Megathon PCI Motherboard Layout ...............................
Megathon PCI Motherboard User’s Guide iv Preface To the OEM Thank you for purchasing the high performance American Megatrends Megathon AMD Athlon PCI ISA motherboard. This product is a state of the art motherboard that includes the famous AMIBIOS.
Preface v Technical Support AMI provides technical support only for AMI products purchased directly from AMI or from an AMI-authorized reseller. If … Then … You purchased this product from AMI or from a certified AMI reseller, Call AMI technical support at 770-246- 8600.
Megathon PCI Motherboard User’s Guide vi.
Chapter 1 Hardware Installation 1 1 Hardware Installation Overview The Megathon motherboard is powered by the AMD Athlon processors at speeds up to 600 MHz. The Megathon provides the high speed data transfer and data integrity required for graphics and audio applications, and supports Ultra DMA/33, and Ultra DMA/66.
Megathon PCI Motherboard User’s Guide 2 Overview, Continued CPUs This motherboard will support all AMD Athlon CPUs operating at 500 MHz, 550 MHz, 600 MHz, 700 MHz, or 750MHz.
Chapter 1 Hardware Installation 3 Megathon PCI Motherboard Layout.
Megathon PCI Motherboard User’s Guide 4 Installation Steps Use the following steps to install the motherboard, memory, jumpers, and connectors. Step Action 1 Unpack the motherboard. 2 Clear CMOS RAM. 3 Install memory. 4 Install CPU. 5 Connect CPU Fan.
Chapter 1 Hardware Installation 5 Step 1 Unpack the Motherboard Step Action 1 Inspect the cardboard carton for obvious damage. If damaged, call 770-246 -8600. Leave the motherboard in its original packing. 2 Perform all unpacking and installation procedures on a ground- connected anti -static mat.
Megathon PCI Motherboard User’s Guide 6 Step 2 Clear CMOS RAM The J3 CMOS RAM (Random Access Memory) contains volatile memory that you can write to as well as read. It contains the Real Time Clock (RTC) information. Use the following procedure to clear the RTC data: Step Action 1 Turn the computer off.
Chapter 1 Hardware Installation 7 Step 3 Install Memory System Memory There are three 72 -bit SDRAM DIMM (Dual Inline Memory Module) sockets . System memory must be PC100 Specification and populated one bank at a time. Each bank has one socket. The minimum amount of system memory supported by the Megathon PCI is 8 MB.
Megathon PCI Motherboard User’s Guide 8 Step 3 Install Memory, Continued Installing DIMMs The three SDRAM DIMM sockets on the motherboard can be filled with either 1 MB x 64 (or 72), 2 MB x 64 (or 72), 4 MB x 64 (or 72), 8 MB x 64 (or 72), or 16 MB x 64 (or 72) DIMMs.
Chapter 1 Hardware Installation 9 Step 4 Install CPU The AMD Athlon CPU is on Slot A adapter cards. The CPU card fits into the Retention Mechanism Assembly in Slot A. The Retention Mechanism Assembly has folding arms to save space in shipping. Warning Improper CPU installation can damage the CPU and the motherboard.
Megathon PCI Motherboard User’s Guide 10 Step Action 3 Place the CPU module in the open Retention Mechanism Assembly and carefully slide it down until it is inserted in the CPU slot firmly. 4 Pull the buttons outward until they click in the right position.
Chapter 1 Hardware Installation 11 Step 4 Install CPU, Continued Install the Heat Sink If the heat sink is not already installed on the CPU module, slide the heat sink top support into the lowest gap .
Megathon PCI Motherboard User’s Guide 12 Step 4 Install CPU, Continued Install the Heat Sink , cont’d Press the buttons on either side of the CPU module, as shown below: Hook the top support of th.
Chapter 1 Hardware Installation 13 Step 5 Connect CPU Fan J9 (shown below) is a 3-pin berg that connects the fan on the CPU heat sink to the motherboard power. J9 is located next to the ATX Power Connector. All AMD Athlon CPUs are shipped with a heat sink and a CPU fan .
Megathon PCI Motherboard User’s Guide 14 Step 7 Install the Motherboard Step Action 1 Place the chassis on an anti -static mat. Connect the chassis to ground to avoid static damage during installation. Connect an alligator clip with a wire lead to any unpainted part of the chassis.
Chapter 1 Hardware Installation 15 Step 8 Attach Cables Connectors The Megathon PCI motherboard includes many connectors. Connection instructions, illustrations of connectors, and pinouts are supplied in the following pages.
Megathon PCI Motherboard User’s Guide 16 Step 8 Attach Cables, Continued Cable Connector Ends When connecting chassis connectors to the motherboard, make sure to connect the correct connector end. Most connector wires are color-coded. Match the color of the wires leaving the switch or LED to the same pin on the connector end.
Chapter 1 Hardware Installation 17 Step 8 Attach Cables, Continued Drain CMOS RAM Power J3 J3 is a 3-pin berg that can be used to erase the contents of CMOS RAM, where all system configuration information is stored.
Megathon PCI Motherboard User’s Guide 18 Step 8 Attach Cables, Continued USB Connectors USB0, USB1, J4 The USB (Universal Serial Bus) connectors, USB0 (bottom), and USB1 (top) are used to link with peripheral devices. J4, a pinhead, is used to connect USB devices on the front panel.
Chapter 1 Hardware Installation 19 Step 8 Attach Cables, Continued Hard Drive LED Connector This is a two-pin connector that attaches to a cable that connects to the hard disk LED mounted on the computer enclosure.
Megathon PCI Motherboard User’s Guide 20 Step 9 Connect I/O Onboard Adapters The Megathon PCI motherboard has: • one serial port, • a parallel port, • an IDE controller on the PCI bus (with a primary IDE connector and secondary IDE connector), and • a floppy controller.
Chapter 1 Hardware Installation 21 Step 9 Connect I/O, Continued J22 Parallel Port J22 is a 25-pin D-Sub female connector for a parallel port. The J22 pinout is shown below.
Megathon PCI Motherboard User’s Guide 22 Step 9 Connect I/O, Continued J5 Floppy J5 is a 34-pin dual-inline berg. Connect the cable from the floppy drive to J5, as shown below. The onboard floppy controller cannot be used if a hard disk card with a floppy controller is installed.
Chapter 1 Hardware Installation 23 Step 9 Connect I/O, Continued Floppy Connector Pinout Pin Use Pin Use 1 GND 2 DENSE1 3 GND 4 N/C 5 GND 6 DRATE0 7 GND 8 -INDEX 9 GND 10 -MOTOR0 11 GND 12 -FDSEL1 13 .
Megathon PCI Motherboard User’s Guide 24 Step 9 Connect I/O, Continued IDE Drives Attach the IDE drives in the follo wing manner. Choose Peripheral Setup in AMIBIOS Setup to enable the onboard IDE controller.
Chapter 1 Hardware Installation 25 Step 9 Connect I/O, Continued Attach IDE Cable to J6 J6 is the primary IDE (Integrated Drive Electronics) hard disk drive connector. Both the primary master and the primary slave IDE drives must be connected by cable to J6, as shown below.
Megathon PCI Motherboard User’s Guide 26 Step 9 Connect I/O, Continued J6 Pinout J6 is the primary IDE connector. The J6 pinout is: Pin Use Pin Use 1 -RESET 2 GND 3 DATA7 4 DATA8 5 DATA6 6 DATA9 7 D.
Chapter 1 Hardware Installation 27 Step 9 Connect I/O, Continued J7 Secondary IDE Controller J7, the secondary IDE connector, is a 40-pin dual-inline berg that connects the secondary primary and slave IDE drives to the secondary onboard IDE controller.
Megathon PCI Motherboard User’s Guide 28 Step 11 Test and Configure Review the following points before powering up: • make sure that all adapter cards are seated properly, • make sure all connec.
Chapter 2 AMIBIOS Setup 29 2 AMIBIOS Setup In ISA and PCI computers, the system parameters (such as amount of memory, type of disk drives and video displays, and many other elements) are stored in CMOS RAM. Unlike the DRAM (dynamic random access memory) that is used for standard system memory, CMOS RAM requires very little power.
Megathon PCI Motherboard User’s Guide 30 AMIBIOS Main Setup Menu The AMIBIOS Setup main menu appears as shown below. The menu items have one or more settings. You can use this screen to change the system date and time, IDE hard disk, and the floppy disk drive types for drives A and B.
Chapter 2 AMIBIOS Setup 31 AMIBIOS Main Menu Setup, Continued Floppy Drive A: and B : Move the cursor to these fields via ↑ and ↓ and select the floppy type. The settings are 360 KB 5¼ inch , 1.2 MB 5¼ inch , 720 KB 3½ inch , or 1.44 MB 3½ inch.
Megathon PCI Motherboard User’s Guide 32 AMIBIOS Main Menu Setup, Continued Auto-Detect Hard Disks This allows the system BIOS to detect the hard disk parameters automatically. Boot Sector Virus Protection This option is near the bottom of the Main Setup screen.
Chapter 2 AMIBIOS Setup 33 Advanced Setup To display the Advanced Setup options, choose an item from the AMIBIOS Setup main menu. The Advanced Setup screen displays as shown below. To change setup options, move the cursor to the desired item, such as Advanced Chipset Setup, and press <Enter>.
Megathon PCI Motherboard User’s Guide 34 Security Setup You can use the Security Setup screen to set Supervisor and User passwords. The Security Setup screen displays as shown below. AMIBIOS SETUP-STANDARD CMOS SETUP (C)1998 American Megatrends, Inc.
Chapter 2 AMIBIOS Setup 35 Security Setup, Continued Two Levels of Password Protection AMIBIOS provides a Supervisor and a User password. You can set either a Supervisor or User password. If you do not want to use a password, press <Enter> when the password prompt displays.
Megathon PCI Motherboard User’s Guide 36 Security Setup, Continued Set Supervisor Password Select Change Supervisor Password from the AMIBIOS Setup main menu. The password prompt displays. Type the password and press <Enter>. The screen does not display the characters entered.
Chapter 2 AMIBIOS Setup 37 Exit Setup You can use the Exit Setup screen to exit, save or discard changes, or load different types of settings. The screen displays as shown below.
Megathon PCI Motherboard User’s Guide 38 Exit Setup, Continued Load Optimal Settings AMIBIOS will automatically set all AMIBIOS Setup options to a complete set of default settings when you choose this option. The Optimal settings are designed for maximum system performance, but may not work best for all computer applications.
Chapter 3 Programming the Flash ROM 39 3 Programming Flash ROM All versions of the Megathon PCI motherboard use Flash EPROM to store the system BIOS. The advantage of Flash EPROM is the EPROM chip does not have to be replaced to update the BIOS. The end user can actually reprogram the BIOS, using a ROM file supplied by American Megatrends.
Megathon PCI Motherboard User’s Guide 40 Programming the Flash ROM, Continued Bootblock Actions When you reprogram from system boot, the bootblock code: Step Action 1 Reads S804P.ROM from the root directory of the floppy disk in drive A :. 2 Erases the Flash EPROM.
Chapter 3 Programming the Flash ROM 41 Programming the Flash ROM, Continued Beep Codes The bootblock code produces a series of beeps during Flash ROM programming to: signify completion of a step (as shown on the previous page), or to signal an error.
Megathon PCI Motherboard User’s Guide 42 Bootblock Code Checkpoint Codes Code Description E0h Verify the Boot Block BIOS checksum. Disable the internal cache, DMA, and interrupt controllers. Initialize the system timer. Start memory refresh. E1h Initialize the chipset registers.
Chapter 4 Deleting a Password 43 4 Deleting a Password If you forget the passwords you set up through AMIBIOS Setup, the only way you can restart the computer is to erase the system configuration information where the passwords are stored. System configuration data is stored in CMOS RAM, a type of memory that consumes very little power.
Megathon PCI Motherboard User’s Guide 44 Avoid Static Electricity Static electricity can damage the motherboard and other computer components. Keep the motherboard in the anti-static bag until it is to be installed. Wear an anti-static wrist grounding strap before handling the motherboard.
Appendix A Specifications 45 A Specifications Engineering Specifications Temperature Ranges The following values are ambient temperatures inside the computer case. The board temperatures reflect the dual AMD Athlon II CPU Heat dissipation requirements because they will be the hottest motherboard components.
Megathon PCI Motherboard User’s Guide 46.
Index 47 Index A Advanced Setup, 33 AMD Athlon, 1 AMIBIOS Main Setup Menu , 30 AMIBIOS Password Support, 36 AMIBIOS Setup, 29 AMIFlash Beep Codes, 41 ARMD, 31 Auto-Detect Hard Disk, 32 B BIOS Password.
Megathon PCI Motherboard User’s Guide 48 J J11 System Case Fan, 13 J22 Parallel Port connector, 21 J24 Keyboard Connector, 17 J3 Drain CMOS RAM power, 17 J3 Erase Password, 43 J4 USB Connectors, 18 .
Index 49.
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