Page 3 - FCC Statement on Class B; • Connect the equipment into an outlet on a circuit
v FCC Statement on Class B This equipment has been tested and found to complywith the limits for a Class B digital device, pursuant toPart 15 of the FCC rules. These limits are designed toprovide reasonable protection against harmful interfer-ence when the equipment is operated in a residentialinsta...
Page 4 - Table of Contents; Hardware Installation
PCI/ISA System Board 4 v Table of Contents v Introduction ........................................................................................ 6 Features and Specifications ...................................................... 7Package Checklist ....................................................
Page 6 - Introduction
PCI/ISA System Board 6 v Introduction The G486VPB system board offers several advancedfeatures integrated into the system board. Its design isbased on the new Peripheral Component Interconnect(PCI) local bus and Industry Standard Architecture(ISA) standards. The G486VPB is an Energy Star compliant s...
Page 7 - Processor; OverDrive Processor; Chipset; VIA - VT82C496G - system and cache controller; Power Management; Microsoft APM 1.1 compliant; Features and Specifications
G486VPB 7 Processor • 5V CPUsIntel 486SX/DX/DX2 (full series) and Pentium TM OverDrive Processor AMD 486DX/DXL/DXL2 (full series)Cyrix 486SX/DX/DX2 (full series) • 3.3V CPUsIntel 486DX4-75/100AMD 486DX2-66/80NV8T 486DX4-75/100NV8T486DX2-66/80 SV8B486DX4-75/100 SV8B Cyrix 486DX2V-50/66/80 486DX4-1005...
Page 9 - layers; Package Checklist; The G486VPB package contains the following items:
G486VPB 9 CPU Socket • 237-pin ZIF socket (Intel Socket 3) Board Dimensions • 22cm (8.58") x 22cm (8.58")Baby AT form factor PCB • 4 layers Package Checklist The G486VPB package contains the following items: • The G486VPB system board• The G486VPB user’s manual• One IDE driver diskette• One ...
Page 10 - Installation Overview; Preparing the Area
PCI/ISA System Board 10 v Installation Overview This chapter summarizes the steps in installing theG486VPB system board into your system unit. Preparing the Area Before unpacking the system board, make sure thelocation you have selected is relatively free of dust andstatic electricity. Excessive exp...
Page 11 - Tips in Handling the System Board; its anti-static bag until you are ready to install it.
G486VPB 11 Static electrical discharge can damage computer compo-nents without causing any signs of physical damage.You must take extra care in handling the system boardto ensure against electrostatic build-up. Tips in Handling the System Board 1) To prevent electrostatic build-up, leave the board i...
Page 12 - Installation Procedures
Hardware Installation Cache configration CPU installation Memory modules installation Other jumper settings Installing the system board Built-in Ports Expansion cards installation Initial Setup Program Installation Procedures
Page 13 - Locations of Jumpers on the G486VPB
Page 14 - Cache Configuration; Locations of the SRAM Sockets and Jumpers JP10-JP14
PCI/ISA System Board 14 Cache Configuration The G486VPB system board can be configured to threedifferent cache sizes: 128KB (default size), 256KB, and512KB. Regardless of the amount of cache memoryinstalled, one 8Kx8 or 32Kx8 is needed for tag RAM tostore the cacheable addresses. The locations of th...
Page 15 - SRAM Socket
G486VPB 15 To upgrade from 256KB to 512KB of cache memory,use four pieces of 128Kx8 SRAM. * Default setting Data SRAM U4/U5/U9/U10 Tag SRAM U21 Cacheable Range Cache Size 128MB 64MB32MB 32Kx8x132Kx8x1 8Kx8x1 128Kx8x4 64Kx8x432Kx8x4 512KB256KB 128KB* 64KX8 or 128Kx8 8KX8 or 32Kx8 ↑ Pin 1 SRAM Socket
Page 16 - Jumper Setting for Cache Memory
PCI/ISA System Board 16 Jumper Setting for Cache Memory Please refer to the figure on page 14 for the locations ofJumpers JP10, JP11, JP12, JP13 and JP14. 128KB* Cache SRAM (Default) 1 3 2 1 3 2 JP11 JP10 JP12 JP13JP14 256KB Cache SRAM 1 3 2 1 3 2 JP11 JP10 JP12 JP13JP14 512KB Cache SRAM 1 3 2 1 3 2...
Page 17 - CPU Installation
G486VPB 17 CPU Installation Get detail information of your CPU Set the Voltage setting jumpers Set the external clock speed jumpers Set the CPU jumpers Insert your CPU into ZIF socket The G486VPB is equipped with a 237-pin Zero Inser-tion Force (ZIF) socket at location U17 (please refer tothe next p...
Page 19 - CPU Voltage Select
G486VPB 19 1 2 3 JP23 JP24 1 2 6 5 JP21 JP21 1-2 On and JP23, JP24 2-3 On: 3.45V 1 2 3 JP23 JP24 1 2 6 5 JP21 JP21 Off and JP23, JP24 1-2 On: 5V (Default) 5V CPUs:Intel 486SX/DX/DX2 SX-S/DX-S/DX2-SDX4 OverDrivePentium OverDrive AMD Am486DX/DXL/DXL2Cyrix 486SX/DX/DX2SGS Thompson ST486DX2 3.45V CPUs:I...
Page 20 - CPU External Clock Selection
PCI/ISA System Board 20 External 25MHz 33MHz * 40MHz 50MHz CPU Clock SpeedInternal 25/50MHz 33/66/100MHz 40/80MHz 50MHz CPU Clock SpeedPentium OverDrive 63MHz 83MHz Internal Clock Speed Jumpers JP15, JP17 and JP19 CPU External Clock Selection 25MHz 1 3 2 JP15 2-3 On, JP17 1-2 On and JP19 2-3 On: 25M...
Page 23 - Intel DX4
Page 24 - Intel DX4 OverDrive / Pentium OverDrive
PCI/ISA System Board 24 Intel DX4 OverDrive / Pentium OverDrive Pin 1
Page 28 - UMC U5SD
Page 30 - Cyrix; or; SGS
PCI/ISA System Board 30 Cyrix Cx486 DX/DX2/DX4SGS Thompson ST486DX2 Pin 1 Cyrix Cx486 DX/DX2/DX4 or SGS ST486DX2 Pin 1
Page 34 - Lifting the Handle
PCI/ISA System Board 34 To install an upgrade CPU in the G486VPB, follow thesteps below. 1. Make sure the handle on the side of the ZIF socket is up. To raise the handle, pull it out to the side alittle and raise it as far as it will go. The top platewill slide back. Do not use screwdrivers or other...
Page 35 - Positioning the CPU Above the ZIF Socket
G486VPB 35 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 intheir corresponding holes. Remember that no force isneeded to install the CPU. If the CPU will not easilyinsert, please verify you...
Page 36 - Fan Exhaust
PCI/ISA System Board 36 Fan Exhaust The CPU must be kept cool by using a fan exhaustconfiguration in connection with the heatsink. Thetemperature of the air entering the fan/heatsink cannotexceed 45°C. In order to provide proper airflow to the CPU, allmovable obstructions (power supply cables, cards...
Page 37 - Memory Installation; Locations of SIM Sockets on the
G486VPB 37 Memory Installation The G486VPB system board can support 1MB to128MB of memory using HSIM modules. HSIM is anacronym for High Density Single In-line Memory. A SIM module consists of several RAM chips solderedonto a small circuit board. A SIM module connects tothe system board via a 72-pin...
Page 40 - Other Jumper Settings; on the G486VPB System Board
PCI/ISA System Board 40 Other Jumper Settings Jumper Settings for Internal/External Battery, CMOS Clean, FlashEPROM, PS/2 Mouse, CPU Speed for PCI Slots and Parallel PortECP DMA Channel Setting JP3 JP4 JP2 JP31 JP1 JP5 JP22 JP8 Locations of Jumpers JP1, JP2, JP3, JP4, JP5, JP22 and JP31 on the G486V...
Page 41 - Jumper JP3
G486VPB 41 3 2 1 3 2 1 Note: If you enable the external battery, you must connect theexternal battery to connector J3 or your system will loseits CMOS settings when powered off. Jumper JP22 CMOS Clean Select If, for some reason, the CMOS becomes corrupted, thesystem can be reconfigured with the defa...
Page 42 - Jumper JP5; EPROM Type
PCI/ISA System Board 42 1 3 2 Jumper JP5 EPROM Type Jumper JP5 shoud be set to match the type of theEPROM installed on the system board. The EPROMtype setting has been set by the manufacturer; do notchange the setting by yourself without manufacturerauthorization. 1 3 2 Jumpers JP2 and JP31 PS/2 Mou...
Page 43 - Jumpers JP4 and JP8; CPU External Clock Speed for PCI Slots
G486VPB 43 Jumpers JP4 and JP8 CPU External Clock Speed for PCI Slots These jumpers should be configured according to thetype of CPU installed on the system board. Set JumpersJP4 and JP8 pins 2 and 3 to On if the CPU externalclock speed is greater than 33MHz. If the CPU externalclock speed is less t...
Page 44 - Jumper JP1; ECP DMA Channel Select
PCI/ISA System Board 44 Jumper JP1 ECP DMA Channel Select The on-board printer port can be set to ECP mode inCMOS Setup. In ECP mode (but not in the other printerport modes), the printer port requires a DMA channel.Set Jumper JP1 to assign either DMA Channel 1 orDMA Channel 3 to the ECP port. Use a ...
Page 45 - Installing the System Board; discharge protection
G486VPB 45 Installing the System Board Before installing the system board into your system unit,you should prepare the tools you will need: You will need: • one medium size, flat-bladed screwdriver• one medium Phillips screwdriver• one grounded wriststrap for electrostatic discharge protection Step ...
Page 46 - Set the appropriate jumpers.
PCI/ISA System Board 46 Step 5 Remove the G486VPB from its original packing box.Be careful to avoid touching all connectors and pins onthe board. Please refer to the handling instructions onpages 10 and 11 for proper handling techniques. Step 6 Insert the HSIM modules into the SIMM banks on theG486V...
Page 48 - Serial Ports; Connecting the Serial Ports; Port Configuration
PCI/ISA System Board 48 Serial Ports The built-in serial ports are RS-232C asynchronouscommunication ports with 16C550-compatible UARTsthat can be used with modems, serial printers, remotedisplay terminals, and other serial devices. TheG486VPB system board supports IRQ4 for the primaryserial port an...
Page 49 - Parallel Port
G486VPB 49 The Primary and Secondary Serial Ports on the G486VPB System Board Parallel Port The G486VPB system board has a standard connectorfor interfacing your PC to a parallel printer. This port iscompatible with both IBM AT printer ports and the new,high speed, bi-directional Extended Capabiliti...
Page 50 - Connecting the Parallel Printer Port; The Parallel Printer Port on the G486VPB System Board
PCI/ISA System Board 50 Connecting the Parallel Printer Port Attach the DB-25S printer port cable, which came withthe motherboard, to Connector J5 on the G486VPBsystem board. Make sure the colored stripe on theribbon cable aligns with pin 1 of Connector J5. Use asmall nutdriver to mount the cable in...
Page 51 - Floppy Disk Drive Controller; Connecting the Floppy Disk Cable; The Floppy Disk Connector on the
G486VPB 51 Floppy Disk Drive Controller The G486VPB system board has a built-in floppy diskcontroller that supports two standard floppy disk drives.You can install any 360KB/720KB/1.2MB/1.44MBfloppy disk drives (2.88MB optional). Connecting the Floppy Disk Cable The Floppy Disk Connector on the G486...
Page 52 - IDE Hard Disk Interface; Only IDE drives can be connected to the IDE interface.
PCI/ISA System Board 52 Step 2 Install the other 34-pin header connector(s) into the diskdrive(s) with the colored edge of the daisy chainedribbon cable aligned to pin 1 of the drive edgeconnector(s). The end-most connector should be at-tached to the drive you want to be Drive A. IDE Hard Disk Inter...
Page 53 - Connecting the IDE Hard Disk Interface; The IDE Hard Disk Connector on the
G486VPB 53 Connecting the IDE Hard Disk Interface The IDE Hard Disk Connector on the G486VPB System Board Step 1 If you are connecting two hard drives, install the 40-pinconnector of the IDE cable into the primary disk con-nector (J7). If you are adding a third or fourth IDEdevice, install the 40-pi...
Page 55 - The PS/2 Mouse Port on the G486VPB System Board
G486VPB 55 PS/2 Mouse Port The PS/2 mouse port is a 6-pin connector on thesystem board. Attach the 6-pin mouse port cable, whichcame in the G486VPB box, to Connector CN3. Makesure the brown wire on the PS/2 mouse connector alignswith pin 1 of connector CN3. The other end of the wiresare attached to ...
Page 56 - Installing Expansion Cards; See note
PCI/ISA System Board 56 Installing Expansion Cards The G486VPB is equipped with three dedicated PCI andthree dedicated ISA slots. One PCI slot and one ISA slotis shared. You can only install a card in one or the otherof the shared slots at a time, you cannot install devicesin both slots. Due to the ...
Page 57 - Initial Setup Program; Press DEL to enter Setup
G486VPB 57 v Initial Setup Program After you power up your system, the BIOS messageappears on your screen and the memory count begins. After the memory test, the following message willappear on the screen: Press DEL to enter Setup If the message disappears before you respond, restartyour system or p...
Page 58 - Award BIOS CMOS Setup Utility; Standard CMOS Setup
PCI/ISA System Board 58 Award BIOS CMOS Setup Utility Press <Ctrl> <Alt> <Esc> or <Del> simultaneously toenter the Setup utility. A screen similar to the one belowwill appear. Use the arrow keys to highlight the option you want andpress <Enter>. Standard CMOS Setup Use ...
Page 59 - Date and Time
G486VPB 59 Date and Time Sets the time and date for the system. Press <F3> forthe calendar. Primary Master, Primary Slave, Secondary Master andSecondary Slave If you have added an IDE drive, you must select theappropriate type for the drive. You may use the “IDEHDD Auto Detection” from the mai...
Page 61 - The system will stop for any; Memory; BIOS Features Setup
G486VPB 61 All, But Disk/Key: The system will stop for any errors except a keyboard or diskerror. Memory The lower right hand corner shows the base memorysize, extended memory size, and the other memory sizeof your system. You cannot alter these items; yourcomputer automatically detects and displays...
Page 63 - Chipset Features Setup
G486VPB 63 Chipset Features Setup The G486VPB uses the VIA chipset. The ChipsetFeatures Setup allows you to modify some functions tooptimize system performance. It also allows you toenable, disable or select the port address of the built-inserial ports, parallel port, floppy disk controller and hard...
Page 64 - Power Management Setup
PCI/ISA System Board 64 Power Management Setup Use the arrow keys to highlight “Power ManagementSetup” and press <Enter>. A screen similar to onebelow will appear Choosing “Enabled” in the Power Management optionwill allow you to set Doze Timer, Sleep Timer andSleep Mode. This will enable your...
Page 65 - PCI Configuration Setup
G486VPB 65 PCI Configuration Setup Use the arrow keys to highlight “PCI ConfigurationSetup” and press <Enter>, a screen similar to the onebelow will appear. The G486VPB system board supports four PCI slots.Each slot may be assigned INT value if the card in-stalled in the slot requires an inter...
Page 67 - Password Setting; Supervisor Password
G486VPB 67 Password Setting If you want to set a password, make sure that the Secu-rity Option under the BIOS Features Setup is set to“System” or “Setup”. Refer to the BIOS Features Setupoption for more information. Use the arrow keys to highlight the password Settingoption and press <Enter>. ...
Page 68 - User Password
PCI/ISA System Board 68 you will be prompted to enter the correct passwordagain. Otherwise, enter a new password. To delete or disable the password function, simply press<Enter> instead of typing in a new password. Press the<Esc> key to return to the main menu. If you forget your passwor...
Page 69 - IDE HDD Auto Detection
G486VPB 69 IDE HDD Auto Detection This option detects the hard disk parameters for the harddisk drives installed in your system. Highlight thisoption and press <Enter>. A screen similar to the onebelow will appear. The screen displays the parameters detected and allowsyou to accept or reject t...
Page 70 - Exit Without Saving
PCI/ISA System Board 70 Save & Exit Setup When all the changes have been made, highlight “Save& Exit Setup” and press <Enter>. The message belowwill appear: Save to CMOS and Exit (Y/N)? N Type “Y” and press <Enter>. The following messagewill appear: Reboot System (Y/N)? N Type “Y...
Page 71 - IDE Device Drivers
G486VPB 71 v IDE Device Drivers The G486VPB system board uses the VT82C496G thatsupport two IDE channels: 1Fx channel (Primary IDEChannel) and 17x channel (Secondary IDE Channel).The IDE device drivers should be installed under the“INSTALL.EXE” Utility. The G486VPB comes with IDE driver diskette(s)....
Page 72 - Troubleshooting Checklist
PCI/ISA System Board 72 v Troubleshooting Checklist If you experience difficulty with the G486VPB systemboard, please refer to the checklist below. If you stillcannot isolate the problem, please contact your dealer. 1) Check the jumper settings to ensure that the jumpers are properly set. If in doub...
Page 74 - Appendix A: Types of Modules; OKI
PCI/ISA System Board 74 v Appendix A: Types of Modules The G486VPB system board allows you to populatememory with 256Kx36, 512Kx36, 1Mx36, 2Mx36,4Mx36, 8Mx36 and 16Mx36 SIM modules. The follow-ing modules have been tested with this board. Mostuntested brands will work but a few may fail to do so. Fo...
Page 76 - Appendix B: System Error Report; POST Beep; CMOS BATTERY HAS FAILED
PCI/ISA System Board 76 v Appendix B: System Error Report When the BIOS encounters an error that requires theuser to correct something, either a beep code will soundor a message will be displayed in a box in the middle ofthe screen and a message PRESS F1 TO CONTINUE,CTRL-ALT-ESC or DEL TO ENTER SETU...
Page 80 - Indicates a parity error in Random Access Memory.
PCI/ISA System Board 80 PRESS F1 TO DISABLE NMI, F2 TO REBOOT When BIOS detects a Non-Maskable Interrupt conditionduring boot, this will allow NMI to be disabled andcontinue to boot. You can also reboot the system withthe NMI enabled. RAM PARITY ERROR - CHECKING FOR SEGMENT Indicates a parity error ...
Page 81 - Memory Address Map
G486VPB 81 v Appendix C: Memory & I/O Maps Memory Address Map Address Name Function 0000000 to 640K System System Board Memory 009FFFF Board RAM 00A0000 to 128K Video Reserved for Graphics Display 00BFFFF Display Memory Memory 00C0000 to 160K I/O Reserved for ROM on I/O 00E7FFF Expansion ROM Ada...
Page 85 - Appendix F: Connector Pin Assignments; Locations of Connectors on the System Board
G486VPB 85 v Appendix F: Connector Pin Assignments Locations of Connectors on the System Board J15 Green LED J14 Turbo LED J13 Turbo SW. J12 Reset J11 Speaker J10 Keylock J9 IDE1 LED J8 IDE2 LED
Page 86 - Parallel Printer Port
PCI/ISA System Board 86 Connectors J1 and J2 Primary (COM1) and Secondary (COM2) Serial Ports Connector J5 Parallel Printer Port Pin 123456789 Function DCD (Data Carrier Detect)RX (Receive Data)TX (Transmit Data)DTR (Data Terminal Ready)Ground (Signal Ground)DSR (Data Set Ready)RTS (Request to Send)...
Page 87 - Connector J4; Floppy Disk Drive Connector; Pin
G486VPB 87 Connector J4 Floppy Disk Drive Connector Pin 12345678 Function GroundDENSELGroundReservedGroundDrate0GroundIndex Pin 10111213141516171819202122232425 Function -AckBusyPaper EmptySelect-Autofd-Error-Init-SlctinGroundGroundGroundGroundGroundGroundPNFGround
Page 89 - Connectors JP6 and JP7; Primary and Secondary IDE Hard Disk Drive Connectors
G486VPB 89 Connectors JP6 and JP7 Primary and Secondary IDE Hard Disk Drive Connectors Pin 123456789 10111213141516171819202122232425 Function -ResetGroundD7D8D6D9D5D10D4D11D3D12D2D13D1D14D0D15GroundReservedReservedGround-IOWGround-IOR
Page 90 - * Pin 27 is Reserved for Secondary IDE Channel
PCI/ISA System Board 90 Connectors J8 and J9 IDE1/IDE2 LED Pin 12 Function SignalLED Power Function GroundIO Channel Ready *BALEReservedGroundIRQ14IOCS16SA1ReservedSA0SA2HCS0HCS1LEDGround Pin 262728293031323334353637383940 * Pin 27 is Reserved for Secondary IDE Channel
Page 94 - Connector PL1; Power Connector
PCI/ISA System Board 94 Connector PL1 Power Connector Pin 123456789 101112 Function Power Good+5V+12V-12VGroundGroundGroundGround-5V+5V+5V+5V
Page 95 - Appendix G: Award BIOS Hard Disk Table
G486VPB 95 v Appendix G: Award BIOS Hard Disk Table Type 1 2 3456 789 10111213 141516 1718192021222324252627 28 Size (MB) Cylinders Heads Sectors 17 17 17171717 17171717171717 17 17 1717171717171717171717 17 TEAC SD510,MMI 112, 5412Seagate ST225,ST4026 Seagate ST125,Tandon TM262 Tandon TM 703 Disctr...