1. Manuals
  2. Brands
  3. DFI Manuals
  4. Motherboard
  5. G486VPC
  6. User manual

DFI G486VPC User Manual

G486vpc rev. ba0+ system board user’s manual
Hide thumbs
Table of Contents

Advertisement

Quick Links

G486VPC
Rev . BA0 +
System Board
User' s Manual
- 30071030 -

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the G486VPC and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for DFI G486VPC

Summary of Contents for DFI G486VPC

  • Page 1 G486VPC Rev . BA0 + System Board User’ s Manual - 30071030 -...
  • Page 2 FCC Statement on Class B This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful in- terference when the equipment is operated in a residential installation.

  • Page 3: Table Of Contents

    Table of Contents Chapter 1: Introduction ............5 Features and Specifications ..........6 Package Checklist ............... 8 Chapter 2: Hardware Installation ..........9 Preparing the Area .............. 9 Handling the System Board ........... 9 Static Electricity Precautions ...........10 Installing the System Board ..........10 Board Layout ..............12 System Memory ..............13 Installing a SIM Module ..........13...
  • Page 4 Load Setup Defaults ............38 Supervisor Password .............39 User Password ............40 IDE HDD Auto Detection ..........40 Save & Exit Setup ............43 Exit Without Saving ............43 System Error Report ............44 Chapter 4: Troubleshooting Checklist ........47 Appendix A: Types of Modules ..........48 Appendix B: Memory and I/O Maps ...........

  • Page 5: Chapter 1: Introduction

    The G486VPC system board uses Award BIOS (Windows 95 Plug and Play compatible) that supports Enhanced IDE HDDs larger than 528MB. The G486VPC can support 1MB to 64MB of system memory using x32 or x36 DRAM. It also supports 128KB or 256KB Level 1 and Level 2 write-back/write-through cache.

  • Page 6: Features And Specifications

    Features and Specifications Processor • 5V CPUs - Intel, Cyrix and SGS-Thomson • 3.3V CPUs - Intel, AMD, Cyrix and SGS-Thomson Chipset • VIA VT82C496 - system and cache controller • VIA VT82C505 - PCI bridge • VIA VT82C416 - peripheral chip Cache Memory •...
  • Page 7 Integrated I/O • Uses UMC super I/O controller • Two NS16C550A-compatible enhanced serial ports • One ECP/EPP parallel port • Supports 360KB, 720KB, 1.2MB, 1.44MB, and 2.88MB floppy drives • Two fast IDE connectors: - Primary IDE is a VL-Bus IDE to support Mode 3 and Mode 4 HDDs - Secondary IDE is an ISA IDE to support one tape drive and one ATAPI CD-ROM drive...

  • Page 8: Package Checklist

    Package Checklist The G486VPC package contains the following items: • The G486VPC system board • The G486VPC user’ s manual • One 40-pin IDE hard disk cable • One 34-pin floppy disk drive cable • Serial, mouse and printer port cables...

  • Page 9: Chapter 2: Hardware Installation

    Chapter 2 Hardware Installation This chapter summarizes the steps to install the G486VPC system board into your system unit. It also includes a description of the area in which you must work and directions for memory installation. Before in- stalling the system board, obtain the memory you plan to install. Please refer to the memory chart on pages 14 and 15 for the number and type of SIM modules needed for the amount of memory you require.

  • Page 10: Static Electricity Precautions

    ESD protection. Installing the System Board If you are installing the G486VPC system board, the following outlines the basic installation steps. Before installing the system board into your system unit, you should prepare the tools you will need.
  • Page 11 4. Loosen the screws holding the original system board and remove the board from the system. Save the screws. 5. Remove the G486VPC from its original packing box. Be careful to avoid touching all connectors and pins on the board. Please refer to the handling instructions on pages 9-10 for proper handling tech- niques.

  • Page 12: Board Layout

    Board Layout JP25 J12 J13 Power Connector JP24 SM1 SM2 SM3 JP23 JP22 JP21 VT82C416 VT82C505 VT82C496 JP20 JP19 JP18 JP17 Pin 1 JP16 JP13 JRN2 JP15 JP11 JP14 JRN1 JP12 JP10 Battery Pin 1...

  • Page 13: System Memory

    System Memory The G486VPC system board can support 1MB to 128MB of memory using 72-pin SIMMs (Single In-line Memory Module). The G486VPC system board uses 256KBx36/x32, 1MBx36/x32, 4MBx36/x32, and 16MBx36/x32 HSIM modules installed in SM1-SM3 SIMM sockets or 512KBx36/x32, 2MBx36/x32, and 8MBx36/x32 in- stalled in SM1 or SM3 SIMM sockets.

  • Page 14: Memory Configuration

    Memory Configuration The table below summarizes the bank locations and modules needed for the corresponding memory sizes. Memory Size — — — — — — — 12MB 16MB — — 17MB — 18MB 20MB — 21MB 24MB 32MB — 33MB 36MB 48MB 64MB...
  • Page 15 Memory Size 8M(D) 12MB — 16MB 8M(D) — 8M(D) 24MB 8M(D) — 16M(D) 32MB — 16M(D) 32MB 32M(D) — — 32M(D) 33MB — 34MB 32M(D) — 2M(D) 32M(D) 36MB — 32M(D) 40MB — 8M(D) 48MB 32M(D) — 32M(D) 64MB — 32M(D) 65MB —...

  • Page 16: Cache Memory

    2-3 On CPU Installation The G486VPC allows for easy installation of CPUs. Make sure all jump- ers are set correctly before applying power or you may damage the CPU or system board. Please see the jumper settings on the following...

  • Page 17: Jumper Settings For Cpu

    Jumper Settings for CPU Jumpers JRN1, JRN2, JP16, JP18, JP20, JP22, and JP23 CPU Type Jumpers JRN1 and JRN2 CPUs Pin-out JRN2 JRN1 1-2, 3-4, 5-6, Intel DX2, DX4, DX4 OverDrive, 1-2, 3-4, 5-6, Pentium OverDrive 7-8, 9-10 On 7-8, 9-10 Off AMD Standard, Enhanced, 5x86 Cyrix 5x86 SGS Thomson 5x86...
  • Page 18 Jumper JP16 CPUs JP16 Intel DX2, DX4, DX4 OverDrive, Pentium OverDrive AMD Standard, DX4 SV8B, 5x86-150 Cyrix DX2, DX4, 5x86 SGS Thomson DX2, DX4, 5x86 AMD DX2 SV8B, 5x86-133/166 Jumper JP18 CPUs JP18 Intel DX2, DX4, DX4 OverDrive, Pentium OverDrive AMD Enhanced, DX4 NV8T, 5x86 Cyrix DX2, DX4, 5x86 SGS Thomson DX2, DX4, 5x86...
  • Page 19 Jumpers JP20 and JP23 CPUs JP20 JP23 1-2 On Intel DX2 1-2 On 2-3 On Intel DX4, DX4 OverDrive, Pentium OverDrive AMD Standard, Enhanced, 5x86 1-2 On 1-2 On Cyrix DX2, DX4, 5x86 SGS Thomson DX2, DX4, 5x86 1-2 On 2-3 On Jumper JP22 CPUs...
  • Page 20 Jumpers JP9, JP10 and JP15 CPU Voltage Selection JP15 CPU Voltage JP10 1-2 On 1-2 On 1-2 On 2-3 On 3.45V 2-3 On 1-2 On 2-3 On 3-4 On 2-3 On 3.6V 2-3 On 2-3 On 5-6 On JP9, JP15 JP9, JP15 1-2 On 2-3 On...

  • Page 21: Installing Upgrade Cpus

    Installing Upgrade CPUs The G486VPC is equipped with a 237-pin Zero Insertion Force (ZIF) socket at location U17 of the system board. Refer to page 12 for the location of the ZIF socket. This socket is designed for easy removal of an old CPU and easy insertion of an upgrade CPU.
  • Page 22 To install an upgrade CPU, do the following. 1. Make sure the handle on the side of the ZIF socket is up. To raise the handle, push it down, slightly pull it out to the side, then raise it as far as it will go. It may be necessary to initially apply a small amount of sideways force to free the handle from its retaining “...
  • Page 23 3. Position the CPU above the ZIF socket. Make sure pin 1 of the CPU is aligned with pin 1 of the socket. Lower the chip until the pins are inserted properly in their corresponding holes. Remember that very little force is needed to install the CPU. If the CPU is not easily inserted, verify whether or not pin 1 of the CPU is aligned with pin 1 of the socket.

  • Page 24: Jumper Settings For Pci Slots

    Fan Exhaust The CPU must be kept cool by using a fan with heatsink. The tempera- ture of the air entering the fan/heatsink cannot exceed 45°C (113°F). The ambient or room temperature must be below 37°C (99°F). In order to provide proper airflow to the CPU, all movable obstructions (power supply cables, cards, floppy disk cables) must be clear of the CPU fan/heatsink component in accordance with the space clearance discussed in the Clearance Requirements section of this manual.

  • Page 25: Jumper Settings For Cmos Clean

    Jumper Settings for CMOS Clean Jumper JC2 CMOS Clean Select If, for some reason, the CMOS becomes corrupted, the system can be reconfigured with the default values stored in the ROM BIOS. To load the default values, switch off your computer and remove the cover. Touch the power supply box to discharge any static electric buildup in your body.

  • Page 26: Factory Testing Jumpers

    Jumper JC1 Lithium Battery The G486VPC system board comes with a lithium battery. The default setting of JC1 is 1-2 On for battery conservation during shipment of the board. Before installing the system board onto your system unit, set JC1 to 2-3 On to use the lithium battery.

  • Page 27: Built-In Ports

    Built-in Ports The G486VPC system board is equipped with two serial ports, one par- allel printer port, one FDD connector, two IDE hard disk shrouded head- ers and one PS/2 mouse connector. Refer to page 12 for the locations of the built-in connectors and pin 1 of those connectors.

  • Page 28: Parallel Port

    Connecting the Parallel Printer Port Attach the DB-25S printer port cable, which came with the system board, to connector J10 on the G486VPC system board. Make sure the colored stripe on the ribbon cable aligns with pin 1 of connector J10.
  • Page 29 Note: Only IDE hard drives or ATAPI CD-ROMs can be connected to the IDE interface. Connecting the IDE Hard Disk Interface To prevent improper IDE cable installation, each PCI IDE shrouded header has a keying mechanism. The 40-pin connector on the IDE cable can be placed into the header only if pin 1 of the connector is aligned with pin 1 of the header.
  • Page 30 Follow the instructions provided by the drive manu- facturer for setting the jumpers and/or switches on the drives. No changes are needed on the G486VPC system board when adding a second hard drive. We recommend that the IDE hard drives be from the same manufac- turer.

  • Page 31: Installing Expansion Cards

    Installing Expansion Cards The G486VPC system board is equipped with 6 dedicated 16-bit ISA slots and 1 shared PCI/8-bit ISA slot. You can only install one card in one or the other of the shared slots at a time; you cannot install devices in both slots at the same time.

  • Page 32: Chapter 3: Software Installation

    Chapter 3 Software Installation After you power up your system, the BIOS message appears on your screen and the memory count begins. After the memory test, the following message will appear on the screen: Press DEL to enter setup If the message disappears before you respond, restart your system or press the “...

  • Page 33: Standard Cmos Setup

    Use the arrow keys to highlight the option you want and press <Enter>. The following describes each of these options. Standard CMOS Setup Use the arrow keys to highlight “ Standard CMOS Setup” and press <Enter>. A screen similar to the one below will appear. Date and Time This selection sets the time and date for the system.
  • Page 34 you can select Auto, User, one of 46 predefined drive specifications or None. Auto: This option indicates that the parameters for your hard disk drive(s) will be automatically detected and displayed when you boot your system. By default, the LBA mode is selected for a hard disk drive larger than 528 megabytes.

  • Page 35: Bios Features Setup

    No Errors: The system boot will not stop for any detected errors. All Errors: The system will stop whenever the BIOS detects a non-fatal error. All, But Keyboard: The system will stop for any error except a keyboard error. All, But Diskette: The system will stop for any error except a disk error. All, But Disk/Key: The system will stop for any error except a keyboard or disk error.

  • Page 36: Chipset Features Setup

    Chipset Features Setup The G486VPC uses the VIA chipset. The Chipset Features Setup al- lows you to modify some functions to optimize system performance. If you press <Enter>, a screen similar to the one on the next page will...

  • Page 37: Power Management Setup

    Use the arrow keys to move the highlight bar to the option you wish to change or modify. Use the <Page Up>, <Page Down>, <+> or <-> keys to make the corresponding changes. If the changes you made are incorrect or you change your mind, press <F6>...

  • Page 38: Pci Configuration Setup

    Use the arrow keys to highlight “ PCI Configuration Setup” and press <Enter>; a screen similar to the one below will appear. The G486VPC system board supports one PCI slot. This slot may be assigned an INT value if the card installed in the slot requires an inter- rupt.

  • Page 39: Supervisor Password

    Highlight this option on the main menu and press <Enter>. The mes- sage below will appear. Load Setup Defaults (Y/N)? N Type <Y> and press <Enter> to load the Setup default values. Supervisor Password If you want to protect your system and setup from unauthorized entry, set a supervisor’...

  • Page 40: User Password

    User Password If you want another user to have access only to your system but not to setup, set a user’ s password with the “ System” option selected in the BIOS Features Setup. If you want a user to enter a password when trying to access setup, set a user’...
  • Page 41 Standard CMOS Setup. Hard Drive Mode The G486VPC supports three HDD modes: Normal, LBA and Large. If your hard disk drive does not support LBA mode, the “ LBA” option will not be displayed. If your HDD has 1024 or fewer cylinders, the “ Large”...
  • Page 42 Large Mode The Large mode is the extended HDD access mode supported by the G486VPC system board. Some IDE HDDs have more than 1024 cylin- ders without LBA support (in some cases, you may not want the LBA mode). This system board provides another alternative to support these kinds of HDDs.

  • Page 43: Save & Exit Setup

    Note: To support LBA or Large mode, address translation software is included in the Award BIOS HDD Sevice Routine (INT13h). If you are running an operating system that bypasses the BIOS Int13 Service Routine, LBA and Large Mode may fail. Save &...

  • Page 44: System Error Report

    System Error Report When the BIOS encounters an error that requires the user to correct something, either a beep code will sound or a message will be dis- played in a box in the middle of the screen and the message PRESS F1 TO CONTINUE, CTRL-ALT-ESC or DEL TO ENTER SETUP, will be shown in the information box at the bottom.
  • Page 45 DISPLAY SWITCH IS SET INCORRECTLY The display switch on the system board can be set to either mono- chrome or color. This error indicates the switch is set to a different setting than indicated in Setup. Determine which setting is correct and either turn off the system and change the jumper or enter Setup and change the VIDEO selection.
  • Page 46 MEMORY SIZE HAS CHANGED SINCE LAST BOOT Memory has been added or removed since the last boot. Enter Setup and enter the new memory size in the memory fields. MEMORY VERIFY ERROR AT... Indicates an error verifying a value already written to memory. Use the location along with your system’...

  • Page 47: Chapter 4: Troubleshooting Checklist

    Chapter 4 Troubleshooting Checklist If you experience difficulty with the G486VPC system board, please re- fer to the checklist below. If you still cannot identify the problem, please contact your dealer. 1. Check the jumper settings to ensure that the jumpers are properly set.

  • Page 48: Appendix A: Types Of Modules

    Appendix A Types of Modules The G486VPC system board supports 1MB to 64MB of memory using 72-pin SIMMs. The following modules have been tested with this board. Most untested brands will work but a few may fail to do so.

  • Page 49: Appendix B: Memory And I/O Maps

    Appendix B Memory and I/O Maps Memory Address Map Address Name Function 0000000 to 640KB System System Board Memory 009FFFF Board RAM 00A0000 to 128KB Video Reserved for Graphics 00BFFFF Display Memory Display Memory 00C0000 to 160KB I/O Reserved for ROM on 00E7FFF Expansion ROM I/O Adapter Card...
  • Page 50 I/O Address Map I/O Address Function 000-01F DMA Controller 1, 8237A-5 020-03F Interrupt Controller 1, 8259A, Master 040-05F Timer, 8254-2 060-06F 8742 (Keyboard Controller) 070-07F Real-time Clock, NMI (Non-maskable Interrupt) Mask 080-09F DMA Page Memory, 74LS612 0A0-08F Interrupt Controller 2, 8259A 0C0-0DF DMA Controller 2, 8237A-5 Shadow RAM and Cache Control Bit...

  • Page 51: Appendix C: Pci I/O Pin Assignments

    Appendix C PCI I/O Pin Assignments Component Side Solder Side -12V - 01 - TRST# - 02 - +12V Ground - 03 - - 04 - - 05 - INTA# - 06 - INTB# - 07 - INTC# INTD# - 08 - PRSNT1# - 09 - Reserved...

  • Page 52: Appendix D: Isa I/O Pin Assignments

    Appendix D ISA I/O Pin Assignments -I/O Chck - 01 - Reset Drv - 02 - +5V DC - 03 - IRQ9 - 04 - -5V DC - 05 - DRQ2 - 06 - -12V DC - 07 - O W S - 08 - +12V DC - 09 -...

  • Page 53: Appendix E System Overview

    Appendix E System Overview DMA Controller 2 DMA Controller 1 Ch4-Cascade for CTRL 1 Ch0-Reserved for User Ch5-Reserved for User Ch1-Reserved for User Ch6-Reserved for User Ch2-Diskette Ch7-Reserved for User Ch3-Reserved for User Note: DMA controller 1 supports 8-bit data transfer. DMA controller 2 supports 16-bit data transfer.

  • Page 54: System Interrupts

    System Interrupts Interrupt Controller 1 Interrupt Controller 2 IRQ9-Software Redirected IRQ0-Timer Output (Out 0) IRQ1-Keyboard (Output Buffer to INT 0AH (IRQ2) IRQ10-Reserved Full) IRQ2-Interrupt from INTR2 IRQ11-Reserved IRQ3-Serial Port 2 IRQ12-PS/2 Mouse IRQ4-Serial Port 1 IRQ13-Coprocessor IRQ5-Parallel Port 2 or 3 * IRQ14-Primary Fixed Disk IRQ6-Diskette Controller Controller (1F0)

  • Page 55: Appendix F: Connector Pin Assignments

    Appendix F Connector Pin Assignments Connector J1 Turbo LED Connector Function Signal LED Power Connector J2 Green LED Connector Function Signal LED Power Connector J3 Speaker Connector Function Signal Reserved Ground Connector J4 Reset Switch Connector Function Ground Reset...
  • Page 56 Connector J5 Keylock Connector Function LED Signal Reserved Ground Keylock Signal Ground Connector J6 HD LED Connector Function Signal LED Power Connector J7 Turbo Switch Connector Function Turbo G N D Connectors J8 and J9 Primary and Secondary IDE Hard Disk Drive Connectors Function Function -Reset...
  • Page 57 Function Function -IOR Ground Reserved Reserved BALE Reserved HCS0 Ground HCS1 IOCS16 Ground Connector J10 Parallel Printer Port Function Function -Strobe -Autofd Data 0 -Error Data 1 -Init Data 2 -Slctin Data 3 Ground Data 4 Ground Data 5 Ground Data 6 Ground Data 7...
  • Page 58 Function Function Ground Wr Protect Ground Write Data Ground Read Data Ground Write Gate Ground Head Select Track 0 Ground MSEN Disk Change Connector J12 and J13 COM A and COM B Serial Ports Function DCD (Data Carrier Detect) RX (Receive Data) TX (Transmit Data) DTR (Data Terminal Ready) Ground (Signal Ground)
  • Page 59 Connector CN2 AT Keyboard Connector Function Keyboard Clock Keyboard Data Reserved Ground Connector PL1 Power Connector Function Power Good +12V -12V Ground Ground Ground Ground...

  • Page 60: Appendix G: Award Bios Hard Disk Table

    Appendix G Award BIOS Hard Disk Table Example Type Size Cylinders Heads Sectors Write Land Model (MB) Precomp Zone TEAC SD510, MMI 112, 5412 Seagate ST225, ST4026 None Seagate ST125, Tandon TM262 None Tandon TM 703 None None None None Disctron 526, MMI M125 None...
  • Page 61 Example Type Cylinders Heads Sectors Write Land Size Model (MB) Precomp Zone Seagate ST4038 1024 None Seagate ST4051 1224 None 1023 Seagate ST4096 1224 None 1223 Maxtor 2085 1224 None 1223 Maxtor 2140, Priam S14 1024 None 1223 Maxtor 2190, Priam S19 None 1024...
  • Page 62 Example Type Size Cylinders Heads Sectors Write Land Model (MB) Precomp Zone Miniscribe 3053/ 1024 None 1023 6053 RLL Miniscribe 3650 None None Miniscribe 3675 Conner CP3104 None Conner CP3204 None (User Defined)

Table of Contents