MegaRUM II Dual Pentium II® PCI ISA Motherboard User's Guide MAN-774 1/15/99
© Copyright 1999 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. No part of this publication may be reproduced, transcribed, stored in a retrieval system, translated into any language or computer language, or transmitted in any form whatsoever without the prior written consent of the publisher, American Megatrends, Inc.
Table of Contents 1 Hardware Installation....................................1 MegaRUM II PCI Motherboard Layout ..........................3 Step 1 Unpack the Motherboard .....................................4 Step 2 Configure CPU Speed..........................................5 Step 3 Install Additional Voltage Regulator ...................6 Step 4 Connect CPU Fans ..............................................6 Step 5 Install CPU..........................................................
Preface To the OEM Thank you for purchasing the high performance American Megatrends MegaRUM II Dual Pentium II PCI ISA motherboard. This product is a state of the art motherboard that includes the famous AMIBIOS. It is assumed that you have also licensed the rights to use the American Megatrends documentation for the American Megatrends MegaRUM II motherboard. This manual was written for the OEM to assist in the proper installation and operation of this motherboard.
Preface v
Packing List You should have received the following: • • • • • • • • • • vi a MegaRUM II Dual Pentium II PCI ISA motherboard, one SCSI driver diskette, the AMI Server Manager User’s Guide, one CD containing the AMI Server Manager server management software for Windows NT, one termination card, two VRM modules, two retention mechanisms for the Pentium II CPUs, two plastic spacers for the Pentium II retention mechanisms, a Warranty Card, and the American Megatrends MegaRUM II Dual Pentium II PCI ISA Mother
Preface vii
1 Hardware Installation Overview The American Megatrends MegaRUM II PCI Dual Pentium II ISA motherboard features include: • • • • • • • • • • CPUs two Intel Pentium II CPUs operating at 120, 133, 150, 166, 180, 200, 210, 233, 240, 266, 300, 333, 400 MHz or higher speeds , up to 2 GB of system memory (512 MB has been tested) on the motherboard, parity checking or ECC (Error Checking and Correction), PCI local bus throughput of 132 megabytes per second, two Ultra Wide SCSI channels operating at 80 MB/s, s
Overview, Continued Onboard I/O The MegaRUM II motherboard includes: • • • • • • • • one onboard Symbios Logic 53C896 SCSI controller that provides two 80 MB/s ultra wide SCSI channels, two 40-pin IDE connectors for 1 – 4 IDE drives, a 34-pin floppy drive connector, two serial port connectors, a 25-pin parallel port connector, a keyboard DIN connector, two 4-pin USB ports, and a 9-pin berg keyboard/mouse connector.
MegaRUM II PCI Motherboard Layout Chapter 1 Hardware Installation 3
Step 1 Unpack the Motherboard Step 1 2 3 4 5 Action Inspect the cardboard carton for obvious damage. If damaged, call 770246-8600. Leave the motherboard in its original packing. Perform all unpacking and installation procedures on a groundconnected anti-static mat. Wear an anti-static wristband grounded at the same point as the anti-static mat. Or use a sheet of conductive aluminum foil grounded through a 1 megohm resistor instead of the anti-static mat.
Step 2 Configure CPU Speed If using two CPUs with different speed ratings, set the motherboard jumpers to the lower CPU speed. When JP6 is open, the system bus frequency is determined by the processors. When JP6 is shorted, the system bus frequency is forced to be 66 MHz. Important Please contact American Megatrends technical support at 770-246-8600 to support a CPU running at other speeds.
Step 3 Install Additional Voltage Regulator One Voltage Regulator Module (VRM) is shipped with every MegaRUM II motherboard. You need another VRM if you install two CPUs. You can order VRMs for Intel Pentium II CPUs from: Manufacturer VXI Part Number 073-20740-20 AMI Part Number MDL-PII-V5A190 Step 4 Connect CPU Fans JP1 and JP2 (shown below) are 3-pin bergs that connect the fan on the CPU heat sink to the motherboard power. JP1 is the CPU fan connector for the CPU in CPU Slot1.
Step 5 Install CPU The Pentium II CPUs are on Intel Slot1 adapter cards. Insert the Slot1 cards into the CPU card sockets on the motherboard. See the motherboard drawing on page 3 for the location. The CPU Slot1 sockets are below the SDRAM sockets, as shown on page 3. Warning Improper CPU installation can damage the CPU and the motherboard. You must follow the procedures in this section exactly as documented. Make sure you wear an antistatic wristband while installing the CPU.
Step 5 Install CPU, Continued Retention Mechanism Kit You must mount the Intel Retention Mechanism Kit before installing all Pentium II CPU modules.
Step 5 Install CPU, Continued Install Retention Mechanism Place the retention mechanism on top of the CPU socket, as shown below: Install Attachment Mounts Place the two attachment mounts on the bottom of the motherboard, directly under the ends of the CPU socket.
Step 5 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 on the CPU module, as shown below: The slide the CPU module into the Retention Mechanism Assembly, as shown below: Cont’d 10 MegaRUM II PCI Motherboard User’s Guide
Step 5 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 the heat sink to the support base of the heat sink to complete the CPU module installation: Chapter 1 Hardware Installation 11
Step 6 Install Memory System Memory There are four 72-bit SDRAM DIMM (Dual Inline Memory Module) sockets. System memory must be populated one bank at a time. Each bank has one socket. The minimum amount of system memory supported by the MegaRUM II PCI is 8 MB. Each socket can hold one DIMM. You can use: • • • • • • • 1 MB x 64 (or 72), 2 MB x 64 (or 72), 4 MB x 64 (or 72), 8 MB x 64 (or 72), 16 MB x 64 (or 72), 32 MB x 64 (or 72), or 64 MB x 64 (or 72).
Step 6 Install Memory, Continued Installing DIMMs The eight 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. Place the motherboard on an anti-static mat. With the component side of the DIMM facing you, firmly push the DIMM into the socket at an angle, then push it up. When properly inserted, the DIMM clicks into place as the latching pins engage.
Step 7 Install the Motherboard Step 1 2 3 4 5 Action 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. Ground the other end of the lead at the same point as the mat and the wristband. Rotate the chassis so the front is to the right, and the rear is to the left. The side facing you is where the motherboard is mounted.
Step 8 Attach Cables Connectors The MegaRUM II PCI motherboard includes many connectors. Connection instructions, illustrations of connectors, and pinouts are supplied in the following pages.
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. There may be more than one connector with the same color-coded wires. If so, follow the wire to the switch or LED. All motherboard components are outlined by a white rectangular box with a broad arrow at one end.
Step 8 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. Power supplies often can run on a wide range of voltages and must be set (usually via a switch) to the proper range. Use at least a 300 watt power supply, which should have built-in filters to suppress radiated emissions.
Step 8 Attach Cables, Continued JP11 Drain CMOS RAM Power JP11 is a 3-pin berg that can be used to erase the contents of CMOS RAM, where all system configuration information is stored. If you forget the AMIBIOS password, you can place a shorting bridge on JP11 for a few seconds to erase the old password (and all system configuration information as well). You must then reboot the computer, run AMIBIOS Setup, and restore all system configuration information.
Step 8 Attach Cables, Continued J2 Keyboard Connector The keyboard connector is a 9-pin MINIDIN socket. The pinout is shown below. Pin 1 2, 6, 9 3 4 5 7–8 Assignments Keyboard data Not used KBGGND VCC Keyboard clock Ground Connect Mouse Cable The mouse connector is a 9-pin MINIDIN.
Step 8 Attach Cables, Continued JP17 Reset Switch Connector JP17 is a two-pin 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. Pin 2 is ground and Pin 1 is Hard Reset. JP20 Speaker Connector JP20 is a four-pin single-inline berg that is optionally attached via a cable to a standard speaker. AMIBIOS signals hardware problems through the speaker.
Step 8 Attach Cables, Continued J15 Keyboard Lock J15 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. The keyboard lock allows the user to lock the keyboard, protecting the system from unauthorized use. Pin 1 on the motherboard is identified by the broad arrow.
Step 8 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. Warning The pinout for the optional USB Cable Box is: Pin 1 Red VCC Pin 2 Green Data + Pin 3 White Data Pin 4 Black Ground Please make sure that the USB cable is correctly installed. Incorrect installation will damage the motherboard.
Step 9 Connect I/O Onboard Adapters The MegaRUM II PCI motherboard has: • • • • • two serial ports (J6 and J7), a parallel port (J5), two Ultra Wide SCSI connectors, an IDE controller on the PCI bus (the primary IDE connector is JP5 and the secondary IDE connector is JP4), and a floppy controller (JP9). The serial and parallel port connectors are described below. Conflicts AMIBIOS minimizes conflicts between onboard and offboard I/O devices.
Step 9 Connect I/O, Continued J5 Parallel Port J5 is a 25-pin connector for a parallel port. The J5 pinout is shown below. Connect the 16-pin to DB25 cable provided with the motherboard to J5. The parallel port interface supports: • • • the standard Centronics-compatible parallel port, the ECP (Extended Capabilities Port), and the EPP (Enhanced Parallel Port) port. All parallel port settings must be correctly configured through Peripheral Setup in AMIBIOS Setup.
Step 9 Connect I/O, Continued JP9 Floppy JP9 is a 34-pin dual-inline berg. Connect the cable from the floppy drive to JP9, as shown below. The onboard floppy controller cannot be used if a hard disk card with a floppy controller is installed. Choose Standard Setup and Peripheral Setup to configure the floppy controller. The motherboard supports up to two 720 KB, 1.44 MB, or 2.88 MB 3½" drives and 360 KB and 1.2 MB 5¼" drives.
Step 9 Connect I/O, Continued JP9 Floppy Connector Pinout Pin 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 Use GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND Pin 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 Use DENSE1 N/C DRATE0 -INDEX -MOTOR0 -FDSEL1 -FDSEL0 -MOTOR1 DIR -WDATA -WGATE -TRK0 -WRPROT -RDATA HDSEL DSKCHNG Twist in Floppy Cable Floppy B to A 10 to 16 11 to 15 Floppy B to A 12 to 14 13 to 13 Floppy B to A 14 to 12 15 to 11 Floppy B to A 16 to 10 Cont’d 26 MegaRU
Step 9 Connect I/O, Continued IDE Drives Attach the IDE drives in the following manner. Choose Peripheral Setup in AMIBIOS Setup to enable the onboard IDE controller.
Step 9 Connect I/O, Continued Attach IDE Cable to JP5 JP5 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 JP5, as shown below. JP5 is a 40-pin dual-inline berg that connects an IDE drive to the primary onboard IDE connector.
Step 9 Connect I/O, Continued JP5 Pinout JP5 is the primary IDE connector.
Step 9 Connect I/O, Continued JP4 Pinout JP4 is the secondary IDE connector.
Step 9 Connect I/O, Continued J9 Pinout J9 is the 16-pin connector specifically for AMI’s new MegaRAC PCI adapter, which is a PCI remote assistant card.
Step 10 Connect SCSI I/O SCSI Connectors J18 (SCSI channel 1) and J17 (SCSI channel 2) are 68pin high density (Wide) SCSI connectors. High Density SCSI Connectors The 68-pin high density connectors are 0.050” pitch unshielded connectors. The high-density connector pinouts are shown below: These connectors provide all signals needed to connect to wide SCSI devices. The connector pinouts are for a singleended primary bus (P-CABLE) as specified in SCSI-3 Parallel Interface X3T9.2, Project 885-D, revision 1.
Step 10 Connect SCSI I/O, Continued High-Density 68-Pin SCSI Connector Pinout Signal Ground Data 12 Ground Data 13 Data 14 Data 15 SCOP1 Data 0 Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data (P) Ground Ground DIFFSENS TERMPWR TERMPWR Reserved Ground ATN Ground BSY ACK RST MSG SEL C/D REQ I/O Data 8 Data 9 Data 10 Data 11 Connector Pin 1 Cable Pin 1 Cable Pin 2 Connector Pin 35 Signal -DB(12) 2 3 4 36 -DB(13) 3 4 5 6 7 8 9 10 11 12 13 14 15 16 5 7 9 11 13 15 17 19 21 23 25 27 29 31 6 8 10
Step 10 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. SCSI Cables - Up to Four Devices The total external SCSI cable length for single-ended when using up to 4 Ultra-SCSI devices (maximum. capacitance of device = 25pf) should be less than or equal to: (3 meter-(SCSI signal length on AMI RAID)-(SCSI length in storage box) = (3 meter - 0.
Step 10 Connect SCSI I/O, Continued SCSI Termination The SCSI channels on the MegaRUM II motherboard use active termination for each SCSI channel. You must terminate the SCSI bus properly. The SCSI bus on each SCSI channel is an electrical transmission line and it must be terminated properly at both ends to minimize reflections and losses. You complete the SCSI bus by setting termination at both ends. Do not add terminators in the middle of the SCSI bus.
Step 10 Connect SCSI I/O, Continued SCSI Termination Possibilities SCSI terminator Termination on Termination on controller motherboard enabled SCSI devices (termination disabled on both) enabled. Setup using one connector for one channel SCSI terminator SCSI terminator Termination on Termination on controller disabled motherboard SCSI devices (termination disabled on both) SCSI devices (termination disabled on both) disabled.
Step 11 Install Drivers The following drivers are provided with the MegaRUM II motherboard: • • one CD containing the American Megatrends AMI Server Manager server management software, and one diskette with SCSI drivers for Windows NT v3.51 and v4.0, and SCSI drivers for Windows 95. Installing AMI Server Manager The American Megatrends AMI Server Manager User’s Guide is provided with the MegaRUM II motherboard. Follow the installation instruction in the American Megatrends AMI Server Manager User’s Guide.
Step 12 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, make sure the CPU is seated properly, make sure there are no screws or other foreign material on the motherboard, plug the system into a surge-protected power strip, and make sure blank back panels are installed on the back of the chassis to minimize RF emissions.
2 AMIBIOS 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 CMOS RAM. Unlike the DRAM (dynamic random access memory) that is used for standard system memory, CMOS RAM requires very little power. When the computer is turned off, a back-up battery provides power to CMOS RAM, which retains the system parameters.
AMIBIOS Setup Menu The AMIBIOS Setup main menu appears as follows. Each menu item is described in this chapter. AMIBIOS HIFLEX SETUP UTILITY VERSION 1.18 © 1998 American Megatrends, Inc. All Rights Reserved.
Section 1 Standard Setup Choose Standard CMOS Setup from the AMIBIOS Setup main menu. All Standard Setup options are described in this section. The Standard CMOS Setup screen is shown below. AMIBIOS SETUP-STANDARD CMOS SETUP (C)1998 American Megatrends, Inc. All Rights Reserved Date (mm/dd/yyyy): Tue Sep 1,1998 Time (hh/mm/ss) : 16:05:13 Base Memory: 640 KB Extd Memory: 255 KB Floppy Drive A: 1.
Standard 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. Boot Sector Virus Protection This option is near the bottom of the Standard Setup screen. The settings are Enabled or Disabled. Choose Enabled to enable boot sector protection.
Standard Setup, Continued Primary Master, Primary Slave, Secondary Master, Secondary Slave Select one of these hard disk drives to configure the hard disk drive named in the option. Press to autodetect. The settings for each of these drives are: Setting 1 – 46 Predefined types USER: Enter parameters manually AUTO: Set parameters automatically on each boot How to Configure If you are configuring an old MFM drive and you know the drive type, select the correct drive type between 1 – 46.
Standard Setup, Continued Entering Drive Parameters You can also enter the hard disk drive parameters. The drive parameters are: Parameter Type Size Cylinders Heads Write Precompensation Landing Zone Sectors LBA Mode Blk Mode PIO Mode 32Bit Mode Description The number for a drive with certain identification parameters. The formatted size of the drive is the number of heads times the number of cylinders times the number of sectors per track times 512 (bytes per sector).
Standard Setup, Continued Hard Disk Drive Types Type Cylinders Heads Write Precompensation Landing Zone Sectors 1 306 4 128 305 17 10 MB 2 615 4 300 615 17 20 MB 3 615 6 300 615 17 31 MB 4 940 8 512 940 17 62 MB 5 940 6 512 940 17 47 MB 6 615 4 65535 615 17 20 MB 7 462 8 256 511 17 31 MB 8 733 5 65535 733 17 30 MB 9 900 15 65535 901 17 112 MB 10 820 3 65535 820 17 20 MB 11 855 5 65535 855 17 35 MB 12 855 7 65535 855 17
Section 2 Advanced CMOS Setup Choose Advanced CMOS Setup from the AMIBIOS Setup main menu. Advanced CMOS Setup options are displayed by highlighting the option using the arrow keys. All Advanced CMOS Setup options are described in this section. Primary Display This option configures the type of monitor attached to the computer. The settings are Absent, VGA/EGA, CGA40x25, CGA80x25, or Mono. The Optimal and FailSafe default settings are VGA/EGA.
Advanced CMOS Setup, Continued Boot To OS/2 Set this option to Yes if running OS/2 operating system and using more than 64 MB of system memory on the motherboard. The settings are Yes or No. The Optimal and Fail-Safe default settings are No. S.M.A.R.T. for Hard Disks Set this option to Enabled to permit AMIBIOS to use the SMART (Self Monitoring Analysis and Reporting Technology) protocol for reporting server system information over a network. The settings are Enabled or Disabled.
Advanced CMOS 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, Floppy, ARMD-FDD, ARMD-HDD, ATAPI CDROM, 1st IDEHDD, 2nd IDE-HDD, 3rd IDE HDD, or 4th IDE-HDD. The default setting is Disabled. The Optimal and FailSafe default settings are SCSI.
Advanced Setup, Continued C800,16K Shadow CC00,16K Shadow D000,16K Shadow D400,16K Shadow D800,16K Shadow DC00,16K Shadow These options enable shadowing of the contents of the ROM area in the option title. Setting Enabled Cached Disabled Description The contents of the ROM area are written to the corresponding address in RAM for faster execution. The contents of the ROM area are written to the corresponding RAM address and can be read from or written to cache memory. The ROM is not copied to RAM.
Section 3 Advanced Chipset Setup Choose Advanced Chipset Setup from the AMIBIOS Setup main menu. All Chipset Setup options are described below. USB Function Set this option to Enabled to enable the system BIOS USB (Universal Serial Bus) functions. The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Enabled. Onboard SCSI-1 The settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are Enabled. Onboard SCSI-2 The settings are Enabled or Disabled.
Advanced Chipset Setup, Continued Mlti-Trans Timer (Clocks) This option sets the multi-trans timer. The settings are in units of Clocks. The settings are 32, 64, 96, 128, 160, 192, 224, or Disabled. The Optimal default setting is 32. The Fail-Safe default setting is Disabled. Graphics Aperture Size This option specifies the amount of system memory that can be used by the Accelerated Graphics Port (AGP). The settings are 4 MB, 8 MB, 16 MB, 32 MB, 64 MB, 128 MB, or 256 MB.
Section 4 Power Management Setup Choose Power Management Setup from the AMIBIOS Setup main menu. All Power Management Setup options are described in this section. ACPI Aware O/S Set this option to Yes if the operating system you are running under complies with the Intel ACPI (Advanced Configuration and Power Interface) specification. The settings are Yes or No. The Optimal and Fail-Safe default settings are No.
Power Management Setup, Continued Video Power Down Mode This option specifies the power state that the video subsystem enters when AMIBIOS places it in a power saving state after the specified period of display inactivity has expired. The settings are Standby, Suspend or Disabled. The Optimal default setting is Stand By. The Fail-Safe default setting is Disabled.
Power Management Setup, Continued Standby Time Out 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, 4 min, 8 min, up to and including 508 minutes, in increments of 4 minutes. The Optimal and Fail-Safe default settings are Disabled. Suspend Time Out This option specifies the length of a period of system inactivity while in Standby state.
Power Management Setup, Continued Device 6 (Serial Port 1) Device 7 (Serial Port 2) Device 8 (Parallel Port) Device 5 (Floppy Disk) Device 0 (Primary Master IDE) Device 1 (Primary Salve IDE) Device 2 (Secondary Master IDE) Device 3 (Secondary Slave IDE) When set to Monitor, these options enable event monitoring on the specified hardware interrupt request line. If set to Monitor and the computer is in a power saving state, AMIBIOS watches for activity on the specified IRQ line.
Section 5 PCI/PnP Setup Choose PCI/PnP Setup from the AMIBIOS Setup main menu. All PCI/PnP Setup options are described in this section. AMI RAID Express Installed Set this option to Yes if the AMI RAID Express is installed. The settings are Yes or No. The Optimal and Fail-Safe settings are No. Boot to SCO UNIX Set this option for the computer to boot to SCO UNIX. The settings are Yes or No. The Optimal and Fail-Safe settings are No.
Cont’d Chapter 2 AMIBIOS Setup 57
PCI/PnP Setup, Continued USB Device Latency This option specifies the latency timings (in PCI clocks) for USB devices. The settings are 32, 64, 96, 128, 160, 192, 224, or 248. The Optimal and Fail-Safe default settings are 64. PCI Slot-1 Latency This option specifies the latency timings (in PCI clocks) for PCI devices installed in the Slot-1 expansion slot. The settings are 32, 64, 96, 128, 160, 192, 224, or 248. The Optimal and Fail-Safe default settings are 64.
PCI/PnP Setup, Continued PCI Slot1 IRQ Priority These options specify the IRQ priority for PCI devices installed in the computer. The settings are Auto, 3, 4, 5, 7, 9, 10, 11, 12, and 14, in priority order. If Auto is selected, AMIBIOS automatically determines the optimal IRQ priority order. The Optimal and Fail-Safe default settings are Auto. PCI SCSI-1 Latency PCI SCSI-2 Latency This option specifies the latency timings (in PCI clocks) for PCI devices installed in the Slot-1 and Slot-2 expansion slots.
PCI/PnP Setup, Continued IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 These options specify the bus that the specified IRQ line is used on. These options allow you to reserve IRQs for legacy ISA adapter cards. These options determine if AMIBIOS should remove an IRQ from the pool of available IRQs passed to devices that are configurable by the system BIOS. The available IRQ pool is determined by reading the ESCD NVRAM.
PCI/PnP Setup, Continued Reserved ISA Card Memory Size This option specifies the size of the memory area reserved for legacy ISA adapter cards. The settings are Disabled, 16K, 32K, or 64K. The Optimal and Fail-Safe default settings are Disabled. Reserved ISA Card Memory Address This option specifies the beginning address (in hex) of the reserved memory area. The specified ROM memory area is reserved for use by legacy ISA adapter cards. The settings are C0000, C4000, C8000, CC000, or D0000.
Section 6 Peripheral Setup Choose Peripheral Setup from the AMIBIOS Setup main menu. All Peripheral Setup options are described below. Onboard Floppy Controller Set this option to Enabled to enable the floppy drive controller on the motherboard. The settings are Auto (AMIBIOS automatically determines if the floppy controller should be enabled), Enabled, or Disabled. The Optimal and Fail-Safe default settings are Auto.
Peripheral Setup, Continued Primary\Secondary This option specifies the PSI/ISA IDE cards used by the offboard IDE controller. The settings are Disabled, Primary, Secondary, or Both. The Optimal and Fail-Safe default settings are Both. PCI IDE Card Primary IRQ This option specifies the primary IRQ used by the PCI IDE card. The setting is IRQ14. The Optimal and Fail-Safe default settings are IRQ14. PCI IDE Card Secondary IRQ This option specifies the secondary IRQ used by the PCI IDE card.
Peripheral Setup, Continued Serial Port2 Mode This option specifies the operating mode for serial port 2.This option appears only if the Onboard Serial Port2 option is not set to Auto or Disabled. The settings are IrDA, ASK IR, or Normal. The Optimal and Fail-Safe default settings are Normal. IR Duplex Mode This option specifies the infrared transmission method. This option appears only if the Onboard Serial Port2 option is not set to Auto or Disabled. The settings are Full or Half.
Peripheral Setup, Continued Parallel Port DMA Channel This option is available only if the setting for the Parallel Port Mode option is ECP. This option sets the DMA channel used by the parallel port. The settings are Auto, (DMA Channel) 1, or 3. EPP Version This option specifies the Enhanced Parallel Port specification version number that is used in the system. This option appears only if the Parallel Port Mode option is set to EPP. The settings are 1.7, 1.9, and N/A.
Section 7 Other Setup Options Auto-Detect Hard Disks Choose this option to let AMIBIOS automatically detect the hard disk drive parameters. The Standard CMOS Setup screen will appear after AMIBIOS has configured the drives. Press and choose Save Settings and Exit to reconfigure the system configuration with the new hard disk drive parameters. AMIBIOS Password Support Two Levels of Password Protection AMIBIOS provides both a Supervisor and a User password.
Change User Password Select Change User Password from the AMIBIOS Setup main menu. Enter new User password: appears. Type the password and press . The screen does not display the characters entered. Retype the password as prompted and press . If the password confirmation is incorrect, an error message appears. The password is stored in NVRAM after AMIBIOS completes. The next time the system boots, a password prompt appears if the Password Check option is set to Always.
Auto Configuration with Optimal Settings AMIBIOS will automatically set all AMIBIOS Setup options to a complete set of default settings when you choose this option. The following appears: Load high performance settings (Y/N) ? N The Optimal settings are designed for maximum system performance, but may not work best for all computer applications. In particular, do not use the Optimal AMIBIOS Setup options if your computer is experiencing system configuration problems.
Chapter 2 AMIBIOS Setup 69
3 Programming Flash ROM All versions of the MegaRUM II 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. Programming the Flash EPROM Step 1 2 3 4 5 6 7 Action Turn power off. Make sure the computer has a working speaker. Insert the floppy disk with the S774P.ROM file in drive A:.
Programming the Flash ROM, Continued Bootblock Actions When you reprogram from system boot, the bootblock code: Step 1 2 3 4 Action Reads S774P.ROM from the root directory of the floppy disk in drive A:. Erases the Flash EPROM. Programs the Flash EPROM with the data read from the floppy disk in drive A:. Generates a CPU reset, rebooting the computer. The bootblock part of the Flash EPROM is not programmed.
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. Error beeps are arranged in a coded sequence and have different meanings depending on when they occur. The error beep codes and when they can occur are: Number of Beeps 1 2 3 4 5 6 7 8 9 10 11 12 Continuous beep Description Insert diskette in floppy drive A:. The S774P.
Bootblock Code Checkpoint Codes Code E0h E1h E2h E3h E4h E5h E6h E7h E8h E9h EAh EDh EEh EFh F0h F1h F2h F3h F4h F5h FBh FCh FDh FEh FFh 74 Description Verify the Boot Block BIOS checksum. Disable the internal cache, DMA, and interrupt controllers. Initialize the system timer. Start memory refresh. Initialize the chipset registers. Set the BIOS size to 128K. Make the 512 KB base memory available. Test the base 64 KB of system memory. Send the BAT command to the keyboard controller.
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. Erase Old Password You can drain CMOS RAM power via J35 on the motherboard. J35 is a 2-pin berg that is normally always OPEN. Perform the following steps to erase the old password.
Avoid Static Electricity Static electricity can damage the motherboard and other computer components. Keep the motherboard in the antistatic bag until it is to be installed. Wear an anti-static wrist grounding strap before handling the motherboard. Make sure you stand on an anti-static mat when handling the motherboard. Avoid contact with any component or connector on any adapter card, printed circuit board, or memory module. Handle these components by the mounting bracket.
5 AMI_ClientCare Installation Procedure This procedure is valid when installing AMI_ClientCare in a computer with an AMI Series 774 MegaRUM II motherboard. Installation Requirements • • A computer with a Series 774 MegaRUM II motherboard and a system BIOS that has the DMIenabled BIOS file S774P.ROM, dated 11/05/98. The AMI_ClientCare installation CD Procedure Step 1 Flash the new S774P.ROM file on to the MegaRUM II BIOS on the Series 774 MegaRUM II motherboard.
78 MegaRUM II PCI Motherboard User’s Guide
A Specifications Engineering Specifications Temperature Ranges The following values are ambient temperatures inside the computer case. The board temperatures reflect the dual Pentium II II CPU Heat dissipation requirements because they will be the hottest motherboard components. Temperature specifications vary with the CPU frequency. Frequency Heat Sink Airflow over CPU Airflow over other component s Temperature Range All frequencies YES 200 feet per minute Not critical 0 ° through 50 ° C.
80 MegaRUM II PCI Motherboard User’s Guide
Index Auto-Detect Hard Disks, 65 1 1st Boot Device, 47 2 2nd Boot Device, 47 3 3rd Boot Device, 48 4 4th Boot Device, 48 A ACPI Aware O/S, 52 Active termination, 35 Add-On ROM Messages, 46 Advanced Chipset Setup, 50 Advanced Setup, 46 AGP Low Priority Timer (AGP Clks), 51 AGP Multi-Trans Timer (AGP Clocks), 51 AGP Slot IRQ Priority, 57 Allocate IRQ to PCI VGA, 56 AMI ClientCare Installation Procedure, 75 Installation Requirements, 75 AMIBIOS Password Support, 65 AMIBIOS Setup, 39 AMIBIOS Setup Menu, 40
CPU Fan, 6 H D Hard Disk Drive Capacity, 44 Hard Disk Drive Parameters, 44 Hard Disk Drive Type D:, 43 Hard Disk Power Down Mode, 53 Hard Disk Timeout (Minute), 53 Heat sink, 10 High Density Connectors, 32 High-Density 68-Pin SCSI Connector Pinout, 33 Date/Time, 41 Device 0 (Primary Master IDE), 55 Device 1 (Primary Slave IDE), 55 Device 2 (Secondary Master IDE), 55 Device 3 (Secondary Slave IDE), 55 Device 5 (Floppy Disk), 55 Device 6 (Serial Port 1), 55 Device 7 (Serial Port 2), 55 Device 8 (Parallel
J6 Serial Port 1 (COM1), 23 J7 Serial Port 2 (COM2), 23 J9 Pinout, 31 JP 11 Drain CMOS RAM power, 18 JP 16 Power Button, 22 JP1 CPU Fan, 6 JP13 Chassis Door Open, 19 JP14 BIOS Size Select, 22 JP15 BIOS Chip Voltage Select, 20 JP17 Reset Switch Connector, 20 JP18 Chassis Fan, 6 JP19 Chassis Fan, 6 JP2 CPU Fan, 6 JP20 Speaker Connector, 20 JP3 Infrared Connector, 18 JP4 Pinout, 30 JP4 Secondary IDE Controller, 29 JP5 IDE Connector Primary, 28 JP5 Pinout, 29 JP9 Floppy Connector, 25 K Keyboard, 47 Keyboard co
Pentium II, 1 Peripheral Setup, 61 Pinout Parallel Port, 24 Primary IDE connector, 29 Serial ports, 23 Pinouts Keyboard lock, 21 Reset Switch, 20 Serial ports, 23 PIO Mode, 44 Plug and Play-Aware OS, 56 Power Button Function, 52 Power Management Setup, 52 Power Management/APM, 52 Power Saving Type, 53 Power Supply, 17 Connecting, 17 Pri Master, Pri Slave, Sec Master, Sec Slave, 43 Primary Display, 46 Primary Prefetch, 61 Primary\Secondary, 62 PS/2 mouse support, 46 PS/2Mouse Support, 46 Q Quick Boot, 47 R
U Unpack the Motherboard, 4 USB Connectors, 22 USB Device IRQ Priority, 57 USB Function, 50 V Video Power Down Mode, 53 Video Shadow C000,16K, 48 Video Shadow C400,16K, 48 Voltage Regulator Module (VRM), 6 W Write Precompensation, 44 Index 85
86 MegaRUM II PCI Motherboard User’s Guide
