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Jaton BX Pentium II User Manual

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BX Pentium ® II Mainboard
User's Manual
Version 1.00
Copyright © 1998 Jaton Corporation

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Summary of Contents for Jaton BX Pentium II

  • Page 1 BX Pentium ® II Mainboard User’s Manual Version 1.00 Copyright © 1998 Jaton Corporation...

  • Page 2: Introduction

    2x AGP. This means the AGP bus is clocked twice as fast and Sideband channel (a slower side channel for control information) is also used. Current AGP implementations only use a single - speed main channel and mix control information with the data. 1998 Jaton Corporation, USA...

  • Page 3: Table Of Contents

    Contents INTRODUCTION....................2 SPECIFICATIONS....................1  CPU ......................2  Chipset ......................2  Cache Memory ................... 2  Memory (DRAM)..................2  System BIOS....................3  Multi I/O Functions.................. 3  Miscellaneous..................... 4 LAYOUT DIAGRAM ..................5 SYSTEM BLOC K DIAGRAM ................. 6 PENTIUM ®...
  • Page 4 PCI & O I/O S ................35 NBOARD ETUP BIOS D ..................39 EFAULTS ..................39 ETUP EFAULTS ................... 39 ASSWORD ETTING IDE HDD A ................40 ETECTION INST ALLATION ....................40 DMA/33 ..........41 OW TO INSTALL THE LTRA DRIVE 440BX ............

  • Page 5: Specifications

    SPECIFICATIONS...

  • Page 6: Cpu

    ⚫ CPU SOFT MENU™II eliminates  CPU the need f or jumpers or DIP switches needed to set CPU parameters ⚫ Employs switching type regulators to stabilize CPU operation ⚫ Supports 66MHz and 100MHz CPU external clock speeds ⚫ Supports Pentium® II 350~400MHz processor cartridge (Based on 100 MHz) and Pentium®...

  • Page 7: System Bios

    •  System BIOS AWARD BIOS • Supports Plug-and-Play (PnP) • Supports Advanced Conf iguration Power Interf ace (ACPI) • Supports Desktop Management Interf ace (DMI) • Year 2000 Compliant •  Multi I/O Floppy port supports up to 2.88MB, and 3 mode f loppy Functions •...

  • Page 8: Miscellaneous

     Miscellaneous • ATX f orm f actor • One AGP slot, Four PCI slots and Three ISA slots • Reserved circuitry f or LDCM f eature • Hardware monitoring – Included f an speed, voltages, and system environment temperature •...

  • Page 9: Layout Diagram

    LAYOUT DIAGRAM PS/2 KEYBoard/Mouse USB 1 AGP SLOT PCI 1 PCI 2 PCI 3 BIOS PCI 4 CCOMS 1 SB-LINK PCI 5 ISA 1 ISA 2 BX Component Locations...

  • Page 10: System Block Diagram

    SYSTEM BLOCK DIAGRAM CPU-SLOT1 Control Address Data Address Main Control Memory SLOT 82443BX (DRAM) PCI BUS PCI IDE USB 1 USB 2 PCI SLOT(s) HEADER PIIX4E ISA SLOT(s) Universal Serial BUS ISA BUS Buffer Serial 83977F FLASH BIOS IrDA X BUS...

  • Page 11: Pentium ® Ii Cpu Installation

    Pentium ® II CPU Installation Mount the two black plastic pegs onto the mainboard. These pegs will be used to attach the fan heat sink supports. Notice that one hole and the base of one peg are larger than the other hole and peg base.
  • Page 12 sink , making sure that the hole and clip are on the outside edge of the support . Slide each support toward the center of the processor until the support is secured to the outside groove of the fan housing.
  • Page 13 Slide the clip (A) on each support toward the processor , exposing the hole that will fit the peg on the mainboard . Push the latches (B) on the processor toward Hold the processor so that the center of the processor the fan shroud is facing until they click into place.

  • Page 14: System Memory Installation

    System memory Installation The mainboard provides four 168-pin DIMM sites for memory expansion.. The DIMM socket supports 1Mx64(8MB), 2Mx64(16MB), 4Mx64(32MB), 8Mx64(64MB),and16Mx64(128MB)or double sided DIMM modules. Minimum memory size is 8MB and maximum memory size is 512 MB SDRAM. There are four Memory module sockets on the system board.(Total eight banks) In order to create a memory array, certain rules must be followed.

  • Page 15: Mainboard Installation

    Supported SDRAM Memory Configurations DRAM DRAM DRAM DRAM DRAM DIMM DRAM DRAM Size Type Tech Depth Width Addressing Banks (1 row) (2 row) SDRAM Asymmetric 16MB Asymmetric 16MB 32MB Asymmetric 16MB 32MB Asymmetric 32MB 64MB Asymmetric 32MB 64MB SDRAM Asymmetric 16MB 32MB 2 Bank...

  • Page 16: Installing The Mainboard

    Installing the Mainboard Our objective is to enable the novice computer user to perform the installation by themselves. We have attempted to write this document in a very clear, concise and descriptive manner to help overcome any obstacles you may face during installation. Please read our instructions carefully and follow them step-by-step.
  • Page 17 PN 1 KEYLOCK POW-ON HDD-LED POWERLED SP-LED SPEAKER PN 2 PN 1 (1-2-3-4-5) keylock and Power LED Connector Pin Number Name or significance of signal +5VDC No connection Ground Keylock inhibit signal Ground Attach the case’s keylock to the connector. PN 1(7-8) HDD LED Connector Pin Number...
  • Page 18 Ground Power Switch signal PN 1(13-14) Hardware Suspend Switch (SMI Switch) Pin Number Name or significance of signal Ground Suspend signal Attach the cable from the case’s suspend switch (if there is one) to this switch. Use this switch to enable/disable the power management function by hardware.
  • Page 19 Ground +5VDC Mouse clock No connection Attach a PS/2 mouse to this 6-pin Din-connector. KB - PS/2 Keyboard Connector Pin Number Name or significance of signal Keyboard data No connection Ground +5VDC Keyboard clock No connection Attach a keyboard to this 6-pin Din-connector. MOUSE KEYBOARD COM 1...
  • Page 20 Ground -15V Attach the connectors from the power supply to ATX PWR. Caution: If power supply connectors are not properly attached to ATX PWR, the power supply or add-on cards may be damaged. I/O port connectors Name No. of pins Description IDE 1 IDE channel 1 connector...

  • Page 21: Jumper And Switches

    - Ring Ground SB -LINK™: Sound Blaster Connector Pin Number Name or significance of signal -GNTA Ground -REQ A Ground SER IRQ WOL: Wake On LAN Pin Number Name or significance of signal 5VSB Ground LID ( LAN Indicator) Jumper and Switches You can set jumper switches on the mainboard to configure various hardware options.

  • Page 22: Introduction Of Bios

    Pin 1-2 Short Pins 1 and 2 with a jumper cap. Pin 2-3 Short Pins 2 and 3 with a jumper cap. For 2-pins jumpers, the following symbols are used: Place the jumper cap over the two pins of the jumper to Short the circuitry. Remove the jumper cap to Open the circuitry.
  • Page 23 The BIOS is a program located on a Read Only Memory chip on the mainboard. This program will not be lost when you turn the computer off. This program is also referred to as the boot program. It is the only channel for the hardware circuit to communicate with the operating system.

  • Page 24: Cpu Soft Manu™ Ii

    In the BIOS Setup main menu of Figure 3, you can see several options. We will explain these options step by step in the following pages of this chapter, but let us first see a short description of the function keys you may use here: ❖...
  • Page 25 The CPU can be setup through a programmable switch (CPU SOFT MENU ™ II), that replaces traditional manual hardware configuration. This feature allows the user to complete more easily the installation procedures. You can install the CPU without configuring any jumpers or switches. The CPU must be setup according its specifications.
  • Page 26 112* 133* … … …  Above 66/100 MHz bus speed supported but not guaranteed due to the CPU and chipset specs. However, differences will exist because of the various types of Intel Pentium ® II CPUs available. Normally, we do not recommend that you use the “User Define” option to setup CPU speed and multiplier factor.
  • Page 27 OR: Hold INSERT key and turn POWER ON. The system will automatically use its standard parameters to boot. You can then enter BIOS SETUP again and set up the new parameters. When you change your CPU: This mainboard has been designed in such a way that you can turn the system on after having inserted the CPU in the socket without having to configure any jumpers or DIP switches.

  • Page 28: Standard Cmos Setup Menu

    Standard CMOS Setup Menu This contains the basic configuration parameters of the BIOS. These parameters include the settings of date, hour, VGA card, FDD and HDD. Set up of HDD operating mode << NORMAL, LBA, LARGE>> Since old operating systems were only able to support HDD whose capacity was not bigger than 528MB, any hard disk with more than 528MB was unusable.

  • Page 29: Bios Features Setup Menu

    LARGE Mode: When the number of cylinders (CYLs) of the hard disk exceeds 1024 and DOS is not able to support it, or if your operating system does not support LBA mode, you should select this mode. FDD supporting 3 Mode: 3 Mode floppy disk drives (FDD) are 3 1/2”...
  • Page 30 CPU Level 1 Cache: This item is used to Enable or to Disable the CPU level 1 cache. When the cache is set at Disable, it is much slower, so the default setting for this item is Enable. Some old and very bad programs will make the computer malfunction or crash if the system speed is to high.
  • Page 31  SCSI, C, A  A, SCSI, C  LS/ZIP, C Swap Floppy Drive: This item can be set as Enable or Disable. When this feature is enabled, you don’t need to open the computer case to swap the position of floppy disk drive connectors. Drive A: can be set as drive B:, and drive B: can be set as drive A:.
  • Page 32 When you press a key continuously, the keyboard will repeat the keystroke according to the rate you have set. Typematic Rate Delay (Msec): When you press a key continuously, if you exceed the delay you have set here, the keyboard will automatically repeat the keystroke according a certain rate.
  • Page 33 When the system memory is bigger than 64MB, the communication method between the BIOS and the operating system will differ from one operating system to another. If you use OS/2, select OS2; if you choose another operating system, select Non-OS2. Report No FDD For WIN 95 : When using Windows 95 without floppy drive , please set this item to Yes.

  • Page 34: Chipset Features Setup Menu

    This option allows you to decide if the memory block (BIOS) of an interface card at the address D8000-DBFFF uses the shadow feature or not. If you have no interface card using this memory block, don’t enable this option. Shadowing address ranges (DC000-DFFFF Shadow): This option allows you to decide if the memory block (BIOS) of an interface card at the address DC000-DFFFF uses the shadow feature or not.

  • Page 35: Power Management Setup Menu

    You can use the arrow keys to move between the items. Use "PgUP", "PgDn", "+" and "-" to change the values. When you have finished setting up the chipset, press "ESC" to go back to the main menu. Memory Hole At 15M-16M: This option is used to free up the 15M-16M memory block.
  • Page 36 The system consumption is reduced according the following sequence: Normal > Doze > Standby > Suspend In the Main Menu, select "Power Management Setup" and press "Enter". The following screen is displayed: Use arrow keys to go to the item you want to configure. To change the settings, use "PgUP", "PgDn", "+"...
  • Page 37 Standby = 1 minute Suspend = 1 minute PM Control by APM: Power Management is completely controlled by the APM. APM stands for Advanced Power Management, it is a power management standard set by Microsoft, Intel and other major manufacturers. Video Off Method: Three video off methods are available: "Blank", "V/H SYNC + Blank"...
  • Page 38 meaning that computer is inactive during this period, the system will enter the Doze power saving mode. If this mode is disabled, the system will enter the next mode in the sequence (Standby or Suspend mode). Standby Mode: When the setting selected for "Power Management" is "User Define", you can define for this mode any delay from 1 minute to 1 hour.

  • Page 39: Pci & Onboard I/O Setup

    Reload Global Timer Events When one of the specific occurs, the count down made for entry in power saving mode goes back to zero. Since the computer will enter a power saving mode only after an inactivity delay specified (time specific for Doze, Standby and Suspend modes) and after it has no activity, during this time period, any event will cause the computer to re-count the time elapsed.
  • Page 40 Force Update ESCD: If you want to clear ESCD data next time you boot up, and ask the BIOS to reset the settings for the Plug & Play ISA Card and the PCI Card, select Enabled. But the next time you boot up, this option will automatically be set as Disabled.
  • Page 41 Assign IRQ for PCI VGA : You can assign IRQ for PCI VGA or not . On Board FDD Controller: This is to Enable or Disable the Onboard FDD Controller On board Serial Port 1: This is used to specify the I/O address and IRQ of Serial Port 1. Ten options are available: Disable, 3F8h/IRQ4, 2F8h/IRQ3, 3E8h/IRQ4 or 2E8h/IRQ3.3F8h/IRQ10, 2F8h/IRQ11, 3E8h/IRQ10, 2E8h/IRQ11, and AUTO.
  • Page 42 ECP Mode Use DMA: When the mode selected for the onboard parallel port is ECP, the DMA channel selected can be Channel 1 or Channel 3. EPP Mode Select: When the mode selected for the onboard parallel port is EPP, two EPP version options are available: EPP1.7 or EPP1.9 .

  • Page 43: Load Bios Defaults

    you like, you first have to be sure that your HDD supports this MODE, otherwise the hard disk will not be able to operate normally. Load BIOS Defaults BIOS defaults are the reference settings that allow your system to work at a comparatively low performance.

  • Page 44: Ide Hdd Auto Detection

    “Confirm Password:“ Type your password again. When complete, press <Enter>. The password setting is completed. Password clearing procedure: When you select the Password setting option, the following message is displayed: “Enter Password:“ Press <Enter>, the message “Password Disable” is displayed. Press a key. The password clearing procedure is completed.

  • Page 45: How To Install The Ultra Dma/33 Drive

    Mount the retention mechanism onto Slot 1, then fix the screw on the four corners of the mechanism. Slightly and gently insert the Pentium® II processor into the retention base, make sure all the components are affixed securely. Speed: According to your CPU speed, set up the CPU in the CPU SOFT MENU™...

  • Page 46: Install Pci Bridge Driver For 440Bx

    In Windows® 95, place the Jaton’ s mainboard CD into the CD -ROM drive. The file ‘Bmide_95’ (compressed) will appear. Run this file. The file will automatically decompress the following files; README.TXT, _INST32I.EX_, _SETUT.DLL, _SETUP.LIB, PIIXDRV.Z, SETUP.EXE, SETUP.INS Run SETUP.EXE and the following seven windows will appear Click on ‘NEXT’...
  • Page 47 Step1. Check your Windows ® 95 Device Manager, and find the question mark showing the PCI Bridge. Insert Jaton’s mainboard CD into the CD-ROM drive, a “Welcome” Step2. screen pops-up by autorun from Windows ® 95. Click on PCI Bridge bottom on that screen menu: Step 3.

  • Page 48: Technical Support

    Technical Support If you have a problem during operation... In order to help our technical support personnel to quickly find out what is the problem of your mainboard and to give you the answers you need, before filling in the technical support form*, eliminate any peripheral that is not related to the problem, and indicate on the form the key peripherals.
  • Page 49 Example 2: With a system including the mainboard (with CPU, DRAM, COAST...) HDD, CD-ROM, FDD, VGA CARD, LAN CARD, MPEG CARD, SCSI CARD, SOUND CARD, after assembly and after having installed the Sound Card Driver, when you restart the system, when it runs the Sound Card Driver, it resets automatically. This problem may be due to the Sound Card Driver.
  • Page 50 Updated drivers and utilities are available through Jaton BBS and Web site. To order accessories and upgrade chip, please use included order form. Telephone: (408) 934-9369, 9-5 PST Mon.-Fri. Fax: (408) 942-6699 24 hour BBS: (408) 263-8529, 8-N-1. Internet: http://www.jaton.com...
  • Page 51 Notice The information in this document is subject to change in order to improve reliability, design, or function without subsequent notice and does not represent a commitment on the part of this company. The information in this manual is believed to be accurate. However, we assume no responsibilities for any inaccuracies that may be contain in this manual.
  • Page 52 YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM JURISDICTION TO JURISDICTION. Jaton Corporation assumes no responsibility for the use of any circuit other than circuits embodied in a Jaton product.

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