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G486VPB 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 34-pin floppy disk drive cable • Two 40-pin IDE hard disk cables • One 25-pin printer port cable for chassis mounting • One card-edge bracket with serial and mouse port cables If any of these items are miss
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PCI/ISA System Board v Installation Overview This chapter summarizes the steps in installing the G486VPB system board into your system unit. Preparing the Area Before unpacking the system board, make sure the location you have selected is relatively free of dust and static electricity. Excessive exposure to dust, static electricity, direct sunlight, excessive humidity, extreme cold, and water can damage the operational capabilities of your system board. Avoid placing the unit on soft surfaces su
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G486VPB Static electrical discharge can damage computer compo- nents without causing any signs of physical damage. You must take extra care in handling the system board to ensure against electrostatic build-up. Tips in Handling the System Board 1) To prevent electrostatic build-up, leave the board in its anti-static bag until you are ready to install it. 2) Wear an antistatic wriststrap. 3) Do all preparation work on a static-free surface with components facing up. 4) Hold the system board by it
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Hardware Installation Installation Procedures Cache configration CPU installation Memory modules installation Other jumper settings Installing the system board Built-in Ports Expansion cards installation Initial Setup Program
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Locations of Jumpers on the G486VPB
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PCI/ISA System Board Cache Configuration The G486VPB system board can be configured to three different cache sizes: 128KB (default size), 256KB, and 512KB. Regardless of the amount of cache memory installed, one 8Kx8 or 32Kx8 is needed for tag RAM to store the cacheable addresses. The locations of the SRAM sockets and Jumpers JP10-JP14 on the system board are shown below. Locations of the SRAM Sockets and Jumpers JP10-JP14 on the G486VPB System Board 14
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G486VPB To upgrade from 256KB to 512KB of cache memory, use four pieces of 128Kx8 SRAM. Data SRAM Tag SRAM Cacheable Cache Size U4/U5/U9/U10 U21 Range 512KB 128Kx8x4 32Kx8x1 128MB 256KB 64Kx8x4 32Kx8x1 64MB 128KB* 32Kx8x4 8Kx8x1 32MB * Default setting 64KX8 or 128Kx8 8KX8 or 32Kx8 ↑ Pin 1 SRAM Socket 15
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PCI/ISA System Board Jumper Setting for Cache Memory Please refer to the figure on page 14 for the locations of Jumpers JP10, JP11, JP12, JP13 and JP14. 128KB* Cache SRAM (Default) JP12 JP11 JP13 JP10 JP14 1 1 2 2 3 3 256KB Cache SRAM JP12 JP11 JP13 JP10 JP14 1 1 2 2 3 3 512KB Cache SRAM JP12 JP11 JP13 JP10 JP14 1 1 2 2 3 3 16
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G486VPB 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 to the next page) of the system board. This socket is de- signed for the easy removal of the old CPU and the easy insertion of the upgrade CPU. If you need to apply excessive force to insert the CPU, the installat
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PCI/ISA System Board U17 Locations of ZIF Socket, Jumpers JP6 - JP7, JP9 , JP15 - JP20, JP21, JP23 - JP30 and JRN1 - JRN3 on the G486VPB System Board 18
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G486VPB Jumpers JP21, JP23 and JP24 CPU Voltage Select 5V CPUs * 3.45V CPUs 2 6 2 6 1 5 1 5 1 2 3 1 2 3 JP23 JP23 JP21 JP21 JP24 JP24 JP21 Off and JP21 1-2 On and JP23, JP24 1-2 On: JP23, JP24 2-3 On: 5V (Default) 3.45V 5V CPUs: 3.45V CPUs: Intel 486SX/DX/DX2 Intel 486DX4 SX-S/DX-S/DX2-S AMD Am486DX2/DX4 NV8T DX4 OverDrive Am486DX2/DX4 SV8B Pentium OverDrive UMC U5SD AMD Am486DX/DXL/DXL2 Cyrix 486DX2-V50 Cyrix 486SX/DX/DX2 486DX4-100 SGS Thompson ST486DX2 5x86-100 3.6V CPUs 4V CPUs 2 6 2 6 1
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PCI/ISA System Board Jumpers JP15, JP17 and JP19 CPU External Clock Selection 25MHz 33MHz * JP19 JP19 JP17 JP17 JP15 JP15 1 1 2 2 3 3 JP15 2-3 On, JP17 1-2 On JP15 2-3 On, JP17 2-3 On and JP19 2-3 On: and JP19 1-2 On: 25MHz 33MHz (Default) 40MHz 50MHz JP19 JP19 JP17 JP17 JP15 JP15 1 1 2 2 3 3 JP15 1-2 On, JP17 1-2 On JP15 1-2 On, JP17 2-3 On and JP19 2-3 On: and JP19 1-2 On: 40MHz 50MHz External 25MHz 33MHz * 40MHz 50MHz CPU Clock Speed Internal 25/50MHz 33/66/100MHz 40/80MHz 50MHz CPU Clock
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G486VPB
Re v. 0+
System Board
User’ s Manual
- D28750815 -
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v Copyright 1995 by DFI, Inc. All rights reserved. No part of this document may be copied, reproduced in any form or by any means or used to make any transfor- mation/adaptation without the prior written consent of DFI, Inc. DFI, Inc. makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability, quality, or fitness for any particular purpose. The information in this document is subject to change without notice. DFI, Inc. reserves the right to mak
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v 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 interfer- ence when the equipment is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio co
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PCI/ISA System Board v Table of Contents v Introduction ........................................................................................ 6 Features and Specifications ...................................................... 7 Package Checklist ..................................................................... 9 Installation Overview ........................................................................ 10 Preparing the Area ...........................................................
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G486VPB Initial Setup Program ....................................................................... 57 Award BIOS CMOS Setup Utilities .....................................................58 Standard CMOS Setup .......................................................................58 BIOS Features Setup .....................................................61 Chipset Features Setup ................................................. 63 Power Management Setup ......................................
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PCI/ISA System Board v Introduction The G486VPB system board offers several advanced features integrated into the system board. Its design is based on the new Peripheral Component Interconnect (PCI) local bus and Industry Standard Architecture (ISA) standards. The G486VPB is an Energy Star compliant system board that supports the Environmental Protection Agency's Green PC requirements. It reduces energy consumption by automatically turning off peripherals when not in use. The G486VPB system boar
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G486VPB Features and Specifications Processor • 5V CPUs TM Intel 486SX/DX/DX2 (full series) and Pentium OverDrive Processor AMD 486DX/DXL/DXL2 (full series) Cyrix 486SX/DX/DX2 (full series) • 3.3V CPUs Intel 486DX4-75/100 AMD 486DX2-66/80NV8T 486DX4-75/100NV8T 486DX2-66/80 SV8B 486DX4-75/100 SV8B Cyrix 486DX2V-50/66/80 486DX4-100 5x86-100 Chipset • VIA - VT82C496G - system and cache controller VT82C505 - Host to PCI bridge VT82C406 - peripheral chip Power Management • Supports System Management
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PCI/ISA System Board BIOS • Award system BIOS (Flash EPROM optional) • Supports IDE HDDs larger than 528MB under DOS (LBA mode only) • System and EGA/VGA BIOS shadow Super I/O Interface and Fast IDE • Two NS16C550 compatible serial ports • One parallel port with EPP and ECP support • Supports 360K, 720K, 1.2M, and 1.44MB floppy drives • Two fast IDE connectors: Primary IDE connector provides a VL-bus IDE interface to support up to two Mode 4 enhanced HDDs Secondary IDE connector provides an ISA
