Instruction/ maintenance manual of the product MAN-758 American Megatrends
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MegaRUM Dual Pentium® II PCI ISA Motherboard User's Guide MAN-758 6/5/97.
MegaRUM PCI Motherboard User’s Guide ii © Copyright 19 85-2010 American Megatrends, Inc. All rights reserved. American Megatrends, Inc. 5555 Oakbrook Parkway, Building 200, Norcross, GA 300 93 This publication contains proprietary information which is protected by copyright.
Preface iii Preface To the OEM Thank you for purchasing the high performance American Megatrends MegaRUM Dual Pentium II PCI ISA motherboard. This product is a state of the art motherboard that includes the famous AMIBIOS.
MegaRUM PCI Motherboard User’s Guide iv Packing List You should have received the following: • a MegaRUM Dual Pentium II PCI ISA motherboard, • two serial cables, • one parallel cable, • one VGA cable, • two VGA driver diskettes for Windows 95 and Windows NT V3.
Chapter 1 Hardware Installation 1 1 Hardware Installation Overview The American Megatrends MegaRUM PCI Dual Pentium II ISA motherboard features include: • two Intel Pentium II CPUs operating at 120,.
MegaRUM PCI Motherboard User’s Guide 2 Overview, Continued Onboard I/O The MegaRUM motherboard includes: • an onboard ATI Rage II PCI VGA controller with 2 MB of synchronous graphics memory, • t.
Chapter 1 Hardware Installation 3 MegaRUM PCI Dimensions The motherboard is approximately 12.25” by 13.8”. The motherboard height restrictions are shown below: Warning This motherboard contains sensitive electronic components that can be easily damaged by static electricity.
MegaRUM PCI Motherboard User’s Guide 4 MegaRUM PCI Motherboard Layout.
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 -8645. Leave the motherboard in its original packing. 2 Perform all unpacking and installation procedures on a ground-connected anti -static mat.
MegaRUM PCI Motherboard User’s Guide 6 Step 2 Configure CPU Speed If using two CPUs with different speed ratings, set the motherboard jumpers to the lower CPU speed.
Chapter 1 Hardware Installation 7 Step 2 Configure CPU Speed, Continued Cont’d.
MegaRUM PCI Motherboard User’s Guide 8 Step 2 Configure CPU Speed, Continued.
Chapter 1 Hardware Installation 9 Step 3 Configure CPU Voltage J5 and J15 Each CPU can be independently set to the correct CPU core voltage. J5 sets the voltage for the CPU in CPU Slot1. J15 sets the voltage for the CPU in Slot2. Core CPU Voltage J5 and J15 Setting 3.
MegaRUM PCI Motherboard User’s Guide 10 Step 4 Install Additional Voltage Regulator One Voltage Regulator Module (VRM) is shipped with every MegaRUM motherboard.
Chapter 1 Hardware Installation 11 Step 5 Connect CPU Fans J1 and J7 (shown below) are 3-pin bergs that connect the fan on the CPU heat sink to the motherboard power. J1 is the CPU fan connector for the CPU in CPU Slot1. J7 is the CPU fan connector for the CPU in CPU Slot2.
MegaRUM PCI Motherboard User’s Guide 12 Step 7 Install Memory System Memory There are eight 32 -bit SIMM (Single Inline Memory Module) sockets. System memory must be populated one bank at a time. Each bank has two sockets. Each bank must be populated with the same type of SIMM.
Chapter 1 Hardware Installation 13 Step 7 Install Memory, Continued Select SIMMs SIMMs must meet the following specifications: Parameter Specification Page Mode FAST Refresh CAS before RAS t CAC ≤ 2.
MegaRUM PCI Motherboard User’s Guide 14 Step 7 Install Memory, Continued Installing SIMMs The four SIMM sockets on the motherboard can be filled with either 1 MB x 32 (or 36), 2 MB x 32 (or 36), 4 MB x 32 (or 36), 8 MB x 32 (or 36), or 16 MB x 32 (or 36) SIMMs.
Chapter 1 Hardware Installation 15 Step 8 Install the Motherboard The motherboard mounting hole pattern is shown below. Standoffs and mounting screws are not supplied with the motherboard. The chassis manufacturer should supply these parts. Step Action 1 Place the chassis on an anti -static mat.
MegaRUM PCI Motherboard User’s Guide 16 Step 9 Attach Cables Connectors The MegaRUM PCI motherboard includes many connectors. Connection instructions, illustrations of connectors, and pinouts are supplied in the following pages.
Chapter 1 Hardware Installation 17 Step 9 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.
MegaRUM PCI Motherboard User’s Guide 18 Step 9 Attach Cables, Continued Connect Power Supply The power supply should match the physical configuration of the chassis. Make sure the power switch is off before assembly. Before attaching all components, make sure the proper voltage has been selected.
Chapter 1 Hardware Installation 19 Step 9 Attach Cables, Continued Power Connector Keys The power connectors are keyed to prevent incorrect installation.
MegaRUM PCI Motherboard User’s Guide 20 Step 9 Attach Cables, Continued P2 Pinout Pin Description 1 5V 2 5V 3 5V 4 Ground 5 Ground 6 Ground P4 Pinout Pin Description 1 3V 2 3V 3 3V 4 Ground 5 Ground.
Chapter 1 Hardware Installation 21 Step 9 Attach Cables, Continued J12 Keyboard Connector The keyboard connector is a 6-pin DIN socket. The pinout is shown below. Pin Assignments 1 Keyboard clock 2 Keyboard data 3, 6 Not used 4 Ground 5 VCC Connect Mouse Cable The mouse connector (J2 ) is a 10-pin berg.
MegaRUM PCI Motherboard User’s Guide 22 Step 9 Attach Cables, Continued J28 Reset Switch Connector J28 is a two-pin single-inline berg that is attached via a cable to an externally-mounted reset switch. When the reset switch is pressed, the system performs a hard reset.
Chapter 1 Hardware Installation 23 Step 9 Attach Cables, Continued J41 Keyboard Lock J41 is a 5-pin single -inline berg that is attached via a cable to the keyboard lock connector (or separate keyboard lock and Power LED connectors). The computer chassis may not include the keyboard lock and Power LED on a single connector.
MegaRUM PCI Motherboard User’s Guide 24 Step 9 Attach Cables, Continued Optional USB Cable You can only use a custom USB cable with this motherboard. You can order this USB cable (AMI part number CBLKIT-USB-1) from American Megatrends at 800-828-9264.
Chapter 1 Hardware Installation 25 Step 9 Attach Cables, Continued J13 VGA Interrupt Enable J13 is a 2-pin berg that enables interrupt support for the onboard PCI ATI VGA controller: Onboard PCI ATI VGA Interrupt Setting J13 Setting PCI interrupt enabled for onboard PCI VGA.
MegaRUM PCI Motherboard User’s Guide 26 Step 9 Attach Cables, Continued Standard VGA Connector The pinout for the standard female DB15 VGA connector is shown below: P i n 1 R e d P i n 2 G r een P i.
Chapter 1 Hardware Installation 27 Step 10 Connect I/O Onboard Adapters The MegaRUM PCI motherboard has: • two serial ports (J8 and J9), • a parallel port (J2), • two Ultra Wide SCSI connectors,.
MegaRUM PCI Motherboard User’s Guide 28 Step 10 Connect I/O, Continued J3 Parallel Port J3 is a 25-pin connector for a parallel port. The J3 pinout is shown below.
Chapter 1 Hardware Installation 29 Step 10 Connect I/O, Continued J4 Floppy J4 is a 34-pin dual-inline berg. Connect the cable from the floppy drive to J4, as shown below. The onboard floppy controller cannot be used if a hard disk card with a floppy controller is installed.
MegaRUM PCI Motherboard User’s Guide 30 Step 10 Connect I/O, Continued J1 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 .
Chapter 1 Hardware Installation 31 Step 10 Connect I/O, Continued IDE Drives Attach the IDE drives in the following manner. Choose Peripheral Setup in WINBIOS Setup to enable the onboard IDE controller.
MegaRUM PCI Motherboard User’s Guide 32 Step 10 Connect I/O, Continued Attach IDE Cable to J10 J10 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 J10, as shown below.
Chapter 1 Hardware Installation 33 Step 10 Connect I/O, Continued J10 Pinout J10 is the primary IDE connector. The J10 pinout is: Pin Use Pin Use 1 -RESET 2 GND 3 DATA7 4 DATA8 5 DATA6 6 DATA9 7 DATA5.
MegaRUM PCI Motherboard User’s Guide 34 Step 10 Connect I/O, Continued J11 Pinout J11 is the secondary IDE connector. The J11 pinout is: Pin Use Pin Use 1 -RESET 2 GND 3 DATA7 4 DATA8 5 DATA6 6 DATA.
Chapter 1 Hardware Installation 35 Step 11 Connect SCSI I/O SCSI Connectors J44 (SCSI channel 1 ) and J45 (SCSI channel 2 ) are 68-pin high density (Wide) SCSI connectors. J36 (SCSI channel 1 ) and J37 (SCSI channel 2 ) are 50-pin low density (Narrow) SCSI connectors.
MegaRUM PCI Motherboard User’s Guide 36 Step 11 Connect SCSI I/O, Continued High-Density 68-Pin SCSI Connector Pinout Signal Connector Pin Cable Pin Cable Pin Connector Pin Signal Ground 1 1 2 35 -D.
Chapter 1 Hardware Installation 37 Step 11 Connect SCSI I/O, Continued 50-Pin Low-Density SCSI Connector The MegaRUM motherboard includes a 50pin low-density 0.0100” pitch shrouded SCSI connector for each SCSI channel. The pinout for the 50-pin low-density connector is specified in SCSI-2 X39T9.
MegaRUM PCI Motherboard User’s Guide 38 Step 11 Connect SCSI I/O, Continued Single-Ended Ultra SCSI Understanding the cable requirements, termination and stub lengths is key to the successful implementation of a Ultra-SCSI subsystem.
Chapter 1 Hardware Installation 39 Step 11 Connect SCSI I/O, Continued SCSI Termination The SCSI channels on the MegaRUM motherboard use active termination for each SCSI channel.
MegaRUM PCI Motherboard User’s Guide 40 Step 11 Connect SCSI I/O, Continued SCSI Termination Possibilities SCSI terminator Termination on controller disabled Termination on controller enabled SCSI d.
Chapter 1 Hardware Installation 41 Step 12 Install Drivers The following drivers are provided with the MegaRUM motherboard: • one VGA driver diskettes for Windows NT v3.
MegaRUM PCI Motherboard User’s Guide 42 Step 13 Test and Configure Review the following points before powering up: • make sure that all adapter cards are seated properly, • make sure all connect.
Chapter 2 WINBIOS Setup 43 2 WINBIOS® Setup In ISA and EISA computers, the system parameters (such as amount of memory, type of disk drives and video displays, and many other elements) are stored in NVRAM (Non-Volatile Random Access Memory), also called CMOS RAM.
MegaRUM PCI Motherboard User’s Guide 44 Using a Mouse with WINBIOS Setup WINBIOS Setup has a built-in mouse driver and can be accessed by either a serial mouse or PS/2-style mouse. WINBIOS Setup supports Microsoft- Compatible serial mice and all PS/2-type mice.
Chapter 2 WINBIOS Setup 45 WINBIOS Setup Menu The WINBIOS Setup main menu is organized into four sections. Each of these sections corresponds to a section in this chapter. Each section contains several icons. Clicking on each icon activates a specific AMIBIOS function.
MegaRUM PCI Motherboard User’s Guide 46 Section 1 Setup Standard Setup Standard Setup options are displayed by choosing the Standard icon from the WINBIOS Setup main menu. All Standard Setup options are described in this section. Date/Time Select the Sta ndard option.
Chapter 2 WINBIOS Setup 47 Standard Setup, Continued Pri Master, Pri Slave, Sec Master, Sec Slave Select one of these hard disk drive icons to configure the hard disk drive named in the option. Select Auto from the drive parameters screen to let AMIBIOS automatically configure the drive.
MegaRUM PCI Motherboard User’s Guide 48 Standard Setup, Continued Entering Drive Parameters You can also enter the hard disk drive parameters. The drive parameters are: Parameter Description Type The number for a drive with certain identification parameters.
Chapter 2 WINBIOS Setup 49 Standard Setup, Continued Hard Disk Drive Types Type Cylinders Heads Write Precompensation Landing Zone Sectors Capacity 1 306 4 128 305 17 10 MB 2 615 4 300 615 17 20 MB 3 .
MegaRUM PCI Motherboard User’s Guide 50 Advanced Setup Advanced Setup options are displayed by choosing the Advanced icon from the WINBIOS Setup main menu. All Advanced Setup options are described in this section. Typematic Rate This option sets the rate at which characters on the screen repeat when a key is pressed and held down.
Chapter 2 WINBIOS Setup 51 Advanced Setup, Continued Hit <DEL> Message Display Set this option to Disabled to prevent Hit <DEL> if you want to run Setup from appearing when the system boots. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Enabled.
MegaRUM PCI Motherboard User’s Guide 52 Advanced Setup, Continued Boot To SCO Unix Set this option to Yes only if running the SCO Unix v3.0, 5.0 or higher operating system. The settings are Yes or No . The Optimal and Fail-Safe default settings are No.
Chapter 2 WINBIOS Setup 53 Advanced Setup, Continued Quick Boot Set this option to Enabled to instruct AMIBIOS to boot quickly when the computer is powered on. This option replaces the old Above 1 MB Memory Test Advanced Setup option. The settings are: Setting Description Disabled AMIBIOS test all system memory.
MegaRUM PCI Motherboard User’s Guide 54 Advanced Setup, Continued 3rd Boot Device This option sets the type of device for the third boot drives that the AMIBIOS attempts to boot from after AMIBIOS POST completes. The settings are Disabled, Floptical, Floppy, CDROM, or IDE-0.
Chapter 2 WINBIOS Setup 55 Advanced Setup, Continued Caching Controller Set this option to Present if a caching controller is installed in the computer. The settings are Present or Absent. The Optimal and Fail-Safe default settings are Absent. Video Shadow C000 ,32K This option specifies how the 32 KB of video ROM at C0000h is treated.
MegaRUM PCI Motherboard User’s Guide 56 Chipset Setup Chipset Setup options are displayed by choosing the Chipset icon from the WINBIOS Setup main menu. All Chipset Setup options are described in this section. PCI 2.1 Compliance Set this option to Enabled to program the chipset to comply with the PCI Version 2.
Chapter 2 WINBIOS Setup 57 Chipset Setup, Continued DRAM ECC Mode This option sets the type of system memory checking. The settings are: Setting Description Disabled No error checking or error reporting is done. Level I Multibit errors are detected and reported as parity errors.
MegaRUM PCI Motherboard User’s Guide 58 Chipset Setup, Continued PCI VGA USWC/Video Frame Buffer Set this option to Enabled to enable the USWC memory attribute and improve video performance when a PCI video adapter is installed. However, VGA card drivers may not behave correctly when this option is set to Enabled.
Chapter 2 WINBIOS Setup 59 Chipset Setup, Continued SCSI Channel #1 Set this option to Enabled to enable SCSI channel 1 on the motherboard. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Disabled. SCSI Channel #2 Set this option to Enabled to enable SCSI channel 2 on the motherboard.
MegaRUM PCI Motherboard User’s Guide 60 Chipset Setup, Continued ISA 16 Bit I/O Recovery This option specifies the length of the delay that is added to the CPU cycle between consecutive 16-bit I/O operations. The length of the delay is related to the CPU type and frequency.
Chapter 2 WINBIOS Setup 61 Power Management Setup The AMIBIOS Setup options described in this section are selected by choosing the Power Management Setup icon from the Setup section on the AMIBIOS Setup main menu. Standard Power Management Set this option to Enabled to enable standard power management, including SMI support.
MegaRUM PCI Motherboard User’s Guide 62 Power Management Setup, Continued DPMS Video Power Down Mode This option specifies the power state that a DPMS (Display Power Management Specification)-compliant video subsystem enters when AMIBIOS places it in a power saving state after the specified period of display inactivity has expired.
Chapter 2 WINBIOS Setup 63 Power Management Setup, Continued Standby Timeout This option specifies the length of a period of system inactivity while in Full power on state. When this length of time expires, the computer enters Standby power state. The settings are Disabled, 1 min.
MegaRUM PCI Motherboard User’s Guide 64 Power Management Setup, Continued IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ15 When set to Monitor, these options enable event monitoring on the specified hardware interrupt request line.
Chapter 2 WINBIOS Setup 65 PCI/PnP Setup Choose the PCI/PnP Setup icon from the WINBIOS Setup screen to display the PCI and Plug and Play Setup options, described below.
MegaRUM PCI Motherboard User’s Guide 66 PCI/PnP Setup, Continued PCI Slot-1 Latency PCI Slot-2 Latency PCI Slot-3 Latency PCI Slot-4 Latency PCI Slot-5 Latency PCI Slot-6 Latency These options specify the latency timings (in PCI clocks) for PCI devices installed in the PCI expansion slots.
Chapter 2 WINBIOS Setup 67 PCI/PnP Setup, Continued PCI SCSI-1 IRQ Preference PCI SCSI-2 IRQ Preference PCI SCSI-3 IRQ Preference PCI SCSI-4 IRQ Preference PCI SCSI-5 IRQ Preference PCI SCSI-6 IRQ Preference These options specify the IRQ priority for USB and PCI devices installed in the PCI expansion slots.
MegaRUM PCI Motherboard User’s Guide 68 PCI/PnP Setup, Continued IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 These options specify the bus that the specified IRQ line uses.
Chapter 2 WINBIOS Setup 69 PCI/PnP Setup, Continued DMA Channel 0 DMA Channel 1 DMA Channel 3 DMA Channel 5 DMA Channel 6 DMA Channel 7 These options allow you to specify the bus type used by each DMA channel. The settings are PnP or ISA. The Optimal and Fail-Safe default settings are PnP.
MegaRUM PCI Motherboard User’s Guide 70 Peripheral Setup Peripheral Setup options are displayed by choosing the Peripheral Setup icon from the WINBIOS Setup main menu. All Peripheral Setup options are described in this section. Onboard Floppy Controller Set this option to Enabled to enable the floppy drive controller on the motherboard.
Chapter 2 WINBIOS Setup 71 Peripheral Setup, Continued Offboard PCI/ISA IDE Card This option specifies the expansion slot that the offboard PCI or ISA IDE Controller adapter card is installed in. The Onboard Primary/Secondary IDE option must be set to Disabled if this option is set to any value except Disabled.
MegaRUM PCI Motherboard User’s Guide 72 Peripheral Setup, Continued Serial Port1 FIFO This option enables the FIFO buffer for the first serial port. The settings are Enabled or Disabled. The Optimal default setting is Disabled. The Fail-Safe default setting is Disabled.
Chapter 2 WINBIOS Setup 73 Peripheral Setup, Continued Parallel Port Address This option specifies the base I/O port address for the parallel port. The settings are 378h, 278h, or Disabled. The Optimal default setting is 378h. The Fail-Safe default setting is not provided .
MegaRUM PCI Motherboard User’s Guide 74 Section 2 Security Three icons appear in this part of the WINBIOS Setup screen: • Supervisor (Password), • User (Password), and • Anti-Virus. Two Levels of Passwords Both the Supervisor and the User icons configure password support.
Chapter 2 WINBIOS Setup 75 Setting a Password The password check option is enabled in Advanced Setup by choosing either Always (the password prompt appears every time the system is powered on) or Setup (the password prompt appears only when WINBIOS is run).
MegaRUM PCI Motherboard User’s Guide 76 Changing a Password Select the Supervisor or Use r icon from the Security section of the WINBIOS Setup main menu. Enter the password and press <Enter>. The screen does not display the characters entered.
Chapter 2 WINBIOS Setup 77 Section 3 Utility The icons in this section of the WINBIOS Setup main screen permit you to choose a different set of colors for the WINBIOS Setup screens and to display all WINBIOS Setup text displayed on the screen in a different language.
MegaRUM PCI Motherboard User’s Guide 78 Section 4 Default The icons in this section permit you to select a group of settings for all WINBIOS Setup options.
Chapter 3 Programming the Flash ROM 79 3 Programming Flash ROM All versions of the MegaRUM 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.
MegaRUM PCI Motherboard User’s Guide 80 Programming the Flash ROM, Continued Bootblock Actions When you reprogram from system boot, the bootblock code: Step Action 1 Reads S758P.ROM from the root directory of the floppy disk in drive A :. 2 Erases the Flash EPROM.
Chapter 3 Programming the Flash ROM 81 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 screen), or to signal an error.
MegaRUM PCI Motherboard User’s Guide 82 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 83 4 Deleting a Password If you forget the passwords you set up through WINBIOS 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.
MegaRUM PCI Motherboard User’s Guide 84 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.
Chapter 4 Deleting a Password 85 A Specifications Engineering Specifications Temperature Ranges The following values are ambient temperatures inside the computer case. The board temperatures reflect the dual Pentium II CPU Heat dissipation requirements because they will be the hottest motherboard components.
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If you already are a holder of American Megatrends MAN-758, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime American Megatrends MAN-758.
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