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Mylex B1 Series User Manual

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MGPT-PNTM-B
System Board
User's Guide
P/N: 771949
Version: D02
September 1995

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  • Page 1 MGPT-PNTM-B System Board User's Guide P/N: 771949 Version: D02 September 1995...

  • Page 2: Manual Notice

    Fremont, California 94537-5035 Copyright Notice: This manual is copyrighted by Mylex Corporation. It may not, in whole or in part, be copied, reproduced, photocopied, translated on paper, electronic media or computer- readable-form or be used to make a derivative work without written permission from Mylex Corporation, except as permitted by the United States Copyright Act of 1976, as amended.

  • Page 3: Fcc Warning

    Finally, any changes or modifications to the equipment by the user not expressly approved by the guarantee or manufacturer could void the user's authority to operate such equipment. Trademarks: Mylex and MGPT-PNTM are registered trademarks of Mylex Corporation. All other products and companies are trademarks of their respective owners and licensees.
  • Page 4 This product is guaranteed to be free from manufacturing or material defects for a period of 1 (one) year after the date of purchase. Should the product fail during this period, Mylex will repair or replace (at Mylex's option) the product free of charge with the following provisions: Proof of purchase must be provided.

  • Page 5: Customer Service Policy

    Customer Service Policy Returned Merchandise Authorization (RMA) All products returned to Mylex for warranty service or for other reasons must be assigned an RMA number before shipment to Mylex. The RMA number may be obtained by contacting Mylex's Technical Support Department. Any product received without an RMA number will be returned to the shipper unopened.

  • Page 6: Handling Precautions

    BIOS setup. If the product continues to operate improperly, contact your dealer or distributor for additional information. Dealers and Distributors may contact Mylex's Technical Support Department at (510) 796-6100 after first completing the enclosed System Problem Report.

  • Page 7: About This Manual

    About This Manual This manual is arranged to help you set up and run the MGPT-PNTM-B system board. • Chapter 1, Introduction, describes the functions and features of the system board and specifications. • Chapter 2, System Board Setup, includes detailed information on how to install and configure the MGPT system board.
  • Page 8 Manual No. 771949-D02, September 1995...

  • Page 9: Table Of Contents

    Table of Contents Introduction Features..........1-1 Cache .
  • Page 10 External Cache Memory ........3-3 Asynchronous Cache Size (JP10) .
  • Page 11 Manual No. 771949-D02, June 1995...

  • Page 12: Features

    Chapter 1 Introduction Features The MGPT-PNTM-B system boards combine the advanced capabilities of the latest Intel Pentium processors, peripheral component interconnect (PCI) technology, and high-speed, high-capacity memory and external cache systems in a powerful and feature-rich computing platform. The MGPT-PNTM-B product family provides: •...

  • Page 13: Vrm/Socket 7

    Mylex MGPT-PNTM-B System Board VRM/Socket 7 Voltage regulator module support and a CPU Socket 7 feature provides variable power options and flexibility for future Pentium CPU upgrades. Manual No. 771949-D02, September 1995...

  • Page 14: The Green Pc Function

    Introduction The Green PC Function The Power Management Unit (PMU) controls and dramatically reduces overall system power consumption. This is accomplished by the activity monitors, which detect the system inactivity timer time-out, and signals the power-saving devices to slow down the clock frequency or remove the power sources from various peripherals.

  • Page 15: Identifying The Pentium Cpu Family

    Mylex MGPT-PNTM-B System Board Identifying the Pentium CPU Family The Pentium family of CPUs has been divided according to the specifications shown below. The following case markings are used to identify Pentium CPUs: Figure 1-1. Pentium CPU Package Markings Refer to the listing on page 2-6 for identification of the various Pentium CPU types.

  • Page 16: Vrm And Socket 7

    Introduction VRM and Socket 7 The MGPT-PNTM-B provides a flexible system board architecture using a Voltage Regulator Module (VRM) socket and a CPU Socket 7. Socket 7 has an additional pin (different from Socket 5) that supports Pentium OverDrive Processors. A Voltage Regulator Module (optional) provides power regulation for voltages different than those of the on-board regulator.

  • Page 17: Specifications

    Mylex MGPT-PNTM-B System Board Specifications CPU: Intel Pentium™ Processor P54C-75/90/100/120MHz; P54C-133MHz and Pentium OverDrive CPUs CPU ZIF Socket 7 and VRM socket, on-board regulators installed with separate CPU core and I/O power plane System Clock: 50/60/66 MHz Chipset: Intel Triton Chipset 82437FX, 82438FX, 82371FB...

  • Page 18: Jumpers And Connectors

    Introduction Jumpers and Connectors The following is a list of the jumpers and connectors used on the MGPT- PNTM-B system board. The referenced pages provide more details. Jumper / Connector Number Function Ref Page Power supply connector Keyboard connector Floppy drive connector RS232-2 (COM2) port Parallel printer port RS232-1 (COM1) port...

  • Page 19: System Board Setup

    Chapter 2 System Board Setup This chapter describes the individual jumpers and connectors on the MGPT-PNTM-B system board. If your system board has already been installed by the dealer, you should refer to this chapter if you plan to make any changes or to upgrade your system. Installing the CPU The Intel Socket 7 zero insertion force (ZIF) socket, incorporated on the MGPT system board, is designed specifically for the Pentium processor.

  • Page 20: System Board Jumpers

    Mylex MGPT-PNTM-B System Board System Board Jumpers Jumpers are used to select between various operating modes or options. A jumper switch consists of two or three gold pins projecting from the system board. Placing the plastic jumper cap over two pins connects those pins and makes a particular selection.

  • Page 21: Configuring The System Board For Different Pentium Cpus

    System Board Setup Configuring the System Board for Different Pentium CPUs The system board supports Intel Pentium P54C-75/90/100/120 MHz CPUs. To install the CPU on this board, you must set the system clock (JP4, JP6), CPU power voltage (JP16) and CPU internal speed (JP11, JP27) to match the CPU specifications.

  • Page 22: System Clock Speed (Jp4, Jp6)

    Mylex MGPT-PNTM-B System Board System Clock Speed (JP4, JP6) The MGPT system board supports Intel 75/90/100/120/133 and 150 MHz Pentium processors (P54C), running at equivalent system clock speeds. You must set the System Clock jumpers (JP4 and JP6) to match the speed of the microprocessor.

  • Page 23: Cpu Power Voltage (Jp16)

    System Board Setup CPU Power Voltage (JP16) Set jumper JP16 (3 pairs of 2-pins) for the CPU I/O voltage. The following table lists the CPU types and versions, followed by an illustration of the JP16 jumper. Version Voltage S-Spec. Step Version Number JP16...

  • Page 24: System Board Connectors

    Mylex MGPT-PNTM-B System Board System Board Connectors Connectors interface the system board to other parts of the system, including the power supply, drives, keyboard and various controls on the front panel of the system case. Some connectors are polarized and require specific alignment during installation.

  • Page 25: Power Supply (J1)

    System Board Setup Power Supply (J1) Most power supplies have two 6-wire plugs that must be connected to the system board. There are two black wires on each plug. Align the plugs so that the two black wires on each plug are positioned in the middle of the P1 connector as illustrated below.

  • Page 26: Keyboard Interface (J4)

    Mylex MGPT-PNTM-B System Board Keyboard Interface (J4) This 5-pin DIN connector interfaces the keyboard to the system board. Description Keyboard Clock Keyboard Data No Connection Ground +5Vdc Floppy Drive Controller (J5) A floppy disk drive controller adapter card is not required with the MGPT system board.

  • Page 27: Enhanced Ide Hard Disk Drive Controller (J10, J11)

    System Board Setup Enhanced IDE Hard Disk Drive Controller (J10, J11) A hard disk drive controller adapter card is not required with the MGPT system board. Connect a hard disk drive to the on-board primary and secondary Enhanced IDE controller. Two hard disk drives can be connected through the cable assembly to the primary IDE controller and two to the secondary IDE controller for a total of four E-IDE drives.

  • Page 28: Keyboard Lock Switch And Power-On Led (Jp19)

    Mylex MGPT-PNTM-B System Board Keyboard Lock Switch and Power-On LED (JP19) When connected to a key switch on the front panel of the system case, turning and removing the key will disable the keyboard to prevent other users from operating your computer when you are not present. Orient the cable correctly when connecting the key switch to the main board;...

  • Page 29: Hdd Activity Indicator (Jp22)

    System Board Setup HDD Activity Indicator (JP22) This 4-pin connector can interface an LED on the front panel of the system case to indicate the activity status of the hard disk drive. The connector has two sets of pins (1-2 and 3-4); either set may be used for the respective LED (pins 1 and 4 are positive).

  • Page 30: System Reset Switch (Jp25)

    Mylex MGPT-PNTM-B System Board System Reset Switch (JP25) This connector interfaces the system reset switch on the front panel of the system cabinet. The switch causes the system board to perform a cold start from the power-on self test without turning off power to certain components, such as the hard disk drive.
  • Page 31 System Board Setup 2-13 Manual No. 771949-D02, September 1995...

  • Page 33: Memory Installation

    Chapter 3 Memory Installation The MGPT-PNTM-B system boards provide SIMM installation slots for 8MB to 128MB of system memory. There is also external cache memory availability on the system board that provides for 0KB up to 512KB installed. This chapter describes the types of memory devices that should be used with the system board and explains how to install the memory.

  • Page 34: Simm Pin Arrangement

    Mylex MGPT-PNTM-B System Board SIMM Pin Arrangement SIMM 1 SIMMs 1 & 2 are BANK 0 SIMM 2 SIMM 3 SIMMs 3 & 4 are BANK 1 SIMM 4 Possible Configurations BANK 0 BANK 1 Total Memory Size SIMMs 1 & 2 SIMMs 3 &...

  • Page 35: External Cache Memory

    JP10. The SRAM Voltage is selected with jumper JP12. Asynchronous Cache Size (JP10) Set jumper JP10 for the proper size of external cache. This jumper is used only on MGPT-PNTM-B1 series system boards. Tag RAM Data RAM Cache Size...

  • Page 36: Asynchronous Sram Voltage (Jp12)

    Mylex MGPT-PNTM-B System Board Asynchronous SRAM Voltage (JP12) Set jumper JP12 to select the operating voltage for the type of SRAM installed. This jumper is used only on MGPT-PNTM-B1 series system boards. Jumper JP12 consists of 4 sets of 2-pin jumpers.

  • Page 37: Bios Setup

    Chapter 4 BIOS Setup The Award BIOS ROM used on the MGPT-PNTM-B system boards has a setup program that allows you to modify the basic system configuration. The BIOS data are stored in CMOS RAM so that the setup configuration will be retained when the power is turned off.

  • Page 38: Standard Cmos Setup

    Mylex MGPT-PNTM-B System Board Standard CMOS Setup Choose the Standard CMOS Setup option from the CMOS Setup Utility menu. The menu in Figure 4- allows you to configure date, time, hard disk drive, floppy disk drive, display and memory. When a field is highlighted, on-line help information is displayed in the left bottom of the Menu screen.

  • Page 39: Bios Features Setup

    BIOS Setup supported by all operation systems. Presently, it can only be used with MS-DOS. BIOS Features Setup Select the BIOS Features Setup option from the CMOS Setup Utility menu to display the screen in Figure 4-. This menu contains the system board's default values.

  • Page 40: Cache Control

    Mylex MGPT-PNTM-B System Board and cause a warning message to appear. If this happens, you can either allow the operation to continue or stop it. Cache Control CPU Internal Cache: Disabled Enabled External Cache: Disabled Enabled Boot Up Features Boot Sequence: This selects the drive for the system to search first for boot data.

  • Page 41: Gate A20 Option

    BIOS Setup Gate A20 Option Fast Slow Gate A20 controls the ability to access memory addresses above 1MB. It speeds up programs that constantly change from addressing conventional memory to addressing memory above 1MB (between real and protected address modes). For example, setting this option to fast makes programs such as network operating systems execute faster.

  • Page 42: System Bios Shadow

    Mylex MGPT-PNTM-B System Board System BIOS Shadow This option enables the system shadow to achieve the best performance of the system. Video BIOS Shadow: Disabled Enabled C8000-CBFFF: Disabled Enabled CC000-CFFFF: Disabled Enabled D0000-D3FFF: Disabled Enabled D4000-D7FFF: Disabled Enabled D8000-DBFFF: Disabled...

  • Page 43: Chipset Features Setup

    BIOS Setup Chipset Features Setup Choose Chipset Features Setup from the CMOS Setup Utility menu to display the screen in Figure 4-. This sample screen contains the manufacturer's default values for the system board. ROM PCI/ISA BIOS (2A59CC39) CHIPSET FEATURES SETUP AWARD SOFTWARE, INC.

  • Page 44: Ide Hdd Block Mode

    Mylex MGPT-PNTM-B System Board IDE HDD Block Mode: Disabled Enabled This feature enhances hard disk performance by making multisector transfers instead of one sector per transfer. On-Board I/O Controller Onboard FDD controller: Enable Disable Onboard Parallel Mode: EPP/SPP ECP/EPP Onboard Parallel Port:...

  • Page 45: Power Management Setup

    BIOS Setup Power Management Setup Choose Power Management Setup from the CMOS Setup Utility menu to display the screen in Figure 4-. This menu provides the Green PC power management features. ROM PCI/ISA BIOS (2A59CC39) POWER MANAGEMENT SETUP AWARD SOFTWARE, INC. Power Management : User Define IRQ3 (COM2)

  • Page 46: Power Management Mode

    Mylex MGPT-PNTM-B System Board Power Management Mode The four Power Management timer modes are set by pressing the ↑↓→← directional arrow keys ( ). The four modes are: • Disable • Max. Saving • Min. Saving • User Define Disable Mode This mode disables the power management function;...
  • Page 47 BIOS Setup b. Doze Timer Disabled 2, 3, 5, 7, 9, 11, 21, 31, 41 min, 1 hr. The Doze Timer starts counting at the end of each activity, If there is no further activity during the defined period, the timer will scale the CPU and system clock at the lower frequency (8MHz), and motivate the enabled PM Events.

  • Page 48: Power Management Events

    Mylex MGPT-PNTM-B System Board Power Management Events Power Management Events include: • Local Master • Local Device • Video Activities • DMA Activities • IRQ1 through IRQ15 The IRQ8 (RTC Alarm) default setting is disabled in order to make sure that the Power Management mode can be executed under OS2.

  • Page 49: Power Management Mask Control

    BIOS Setup Power Management Mask Control Wakeup Events If an interrupt request is generated by a device using that IRQ, it will wake up the system to normal mode (supported by any green modes). Power Down Activities If any event occurs while the system is in a power down mode, the system will return to the normal mode.

  • Page 50: Pci Configuration Setup

    Mylex MGPT-PNTM-B System Board PCI Configuration Setup This section provides information for configuring the PCI and Onboard I/O features. Choose PCI Configuration Setup option from the CMOS Setup Utility to display the menu shown in Figure 4-. Set all INT#'s to Auto. All PCI adapters should use INTA. The BIOS will route each INTA to correspond to the IRQ automatically.

  • Page 51: Pci's Int Routing Setup

    BIOS Setup PCI's INT Routing Setup Slot 1 Using INT#: Auto Slot 2 Using INT#: Auto Slot 3 Using INT#: Auto Slot 4 Using INT#: Auto 1at Available IRQ: 2nd Available IRQ: 3rd Available IRQ: 4th Available IRQ: Slot 1 Slot 2 Slot 3 Slot 4...

  • Page 52: Pci Irq Activated By

    Mylex MGPT-PNTM-B System Board PCI IRQ Activated By Level Edge Tells the chipset if the IRQ signals input is level or edge trigger. Note: Most PCI controllers use LEVEL to activate the PCI IRQ. PCI IDE IRQ Map To PCI-AUTO PCI-SLOT x a.

  • Page 53: Load Setup Defaults

    BIOS Setup Load Setup Defaults Select the Load Setup Defaults option from the CMOS Setup Utility menu to configure the BIOS to load the system defaults directly from CMOS. If the configured setup record created by the Setup program becomes corrupted (and therefore unusable), the system defaults will be loaded automatically when you turn the computer on.

  • Page 54: Supervisor/User Password

    Mylex MGPT-PNTM-B System Board Supervisor/User Password Select either the Supervisor Password or the User Password option from the CMOS Setup Utility menu when you want to initially set the password, and when you want to change or delete an existing password.

  • Page 55: Ide Hard Disk Auto Detection

    BIOS Setup IDE Hard Disk Auto Detection This utility automatically detects the IDE hard disk type; use this to confirm your hard disk data when it is unknown. Select the IDE HDD Auto Detection from the CMOS Setup Utility menu. Upon detection, the HDD type and peripheral data will be displayed.

  • Page 56: Save And Exit Setup

    Mylex MGPT-PNTM-B System Board Save and Exit Setup If you select this option and press the [Enter] key, the values entered in the setup utilities will be recorded in the CMOS memory of the chipset. The microprcessor will check these values whenever you turn on your system, and compare them to what it finds as it checks the system.

  • Page 57: Updating The System Bios

    Appendix A Updating the System BIOS This appendix provides instructions on how to update the system BIOS using the FLASH ROM BIOS feature, which permits you to update the BIOS without exchanging EPROM chips. Upon receipt of a manufacturer's or dealer's diskette containing the BIOS update data, perform the following procedure to update the BIOS: 1.
  • Page 58 Mylex MGPT-PNTM-B System Board 3. Press Y if you want to save the previous BIOS to the BIOS data diskette. Press N if you do not want to save the previous BIOS data. Press Enter. A prompt will display the Error Message window to confirm that you want to proceed with the update (“Are you sure to program (Y/N)”)
  • Page 59 LAN: Other I/O Board: Problem Description Instructions This SPR form has been included with your Mylex product as 4. Attach any relavent printouts or copies of manual pagees a convenience to both you and our Technical Services to this report.

This manual is also suitable for:

B2 seriesMgpt-pntm-bMgpt-pntm-b1Mgpt-pntm-b2

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