DFI G486VPB Manuale utente
G486VPB
Rev. 0+
System Board
User’s Manual
-D28750815-
vCopyright1995byDFI,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
make revisions to this publication and to make changes
to any and/or all parts of its content, at any time,
without obligation to notify any person or entity of such
changes. Further, DFI, Inc. assumes no responsibility
for any errors that may appear in this document.
DFI is a registered trademark, and G486VPB is a
trademark of Diamond Flower, Inc. All other product
names mentioned are trademarks or registered trade-
marks of their respective companies.
vFCC 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 communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does
cause harmful interference to radio or television recep-
tion, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and
the receiver.
•Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio TV
technician for help.
Notice:
1. The changes or modifications not expressly
approved by the party responsible for compliance
could void the user's authority to operate the
equipment.
2. Shielded interface cables must be used in order to
comply with the emission limits.
PCI/ISASystemBoard
4
v Table of Contentsv
Introduction ........................................................................................6
Features and Specifications ...................................................... 7
Package Checklist ..................................................................... 9
Installation Overview ........................................................................10
Preparing the Area .............................................................................10
Handling the System Board .....................................................10
Tips in Handling the System Board ...............................11
Hardware Installation...............................................................12
Installation Procedures ..................................................12
Locations of Jumpers ..........................................13
Cache Configuration ............................................14
Jumper Setting for Cache Memory ...........16
CPU Installation ...................................................17
Jumpers for CPU Voltage Select ..............19
Jumpers for CPU External Clock Select...20
Jumpers for CPU Type Select ..................21
Installing Upgrade CPU .............................32
Memory Installation .............................................37
Installing the Modules ................................39
Other jumper settings (Internal Battery Select,
CMOS clean Select, EPROM Type,
PS/2 Mouse, CPU External Clock Speed
for PCI Slots, ECP DMA Channel Select) .40
Installing the System Board ................................45
Built-in Ports ........................................................47
Serial Ports ...............................................48
Parallel Ports .............................................49
Floppy Disk Drive Controller .....................51
IDE Hard Disk Interface ............................52
PS/2 Mouse Port .......................................55
Installing Expansion Cards ..................................56
G486VPB
5
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 .............................................64
PCI Configuration Setup ................................................65
Load BIOS Defaults .......................................................66
Load Setup Defaults ......................................................66
Password Setting ...........................................................67
Supervisor Password ...........................................67
User Password .....................................................68
IDE HDD Auto Detection ...............................................69
Save & Exit Setup ..........................................................70
Exit Without Saving ........................................................70
IDE Device Drivers ...........................................................................71
Troubleshooting Checklist ...............................................................72
Appendix A:Types of Modules ...............................................74
Appendix B:System Error Report ..........................................76
Appendix C:Memory & I/O Maps ...........................................81
Appendix D:PCI I/O Pin Assignments ...................................83
Appendix E:ISA I/O Pin Assignments ...................................84
Appendix F:Connector Pin Assignments .............................85
Appendix G:Award BIOS Hard Disk Table .............................95
PCI/ISASystemBoard
6
vIntroduction
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 board supports a 237-pin Zero
Insertion Force (ZIF) CPU socket that allows users to
easily upgrade their CPUs. It also supports an optional
Flash EPROM for easy BIOS upgrades. Flash EPROM
is a memory chip for the storage of BIOS which can be
erased in bulk or modified using a software utility.
The G486VPB is equipped with four PCI slots, four ISA
slots (one shared PCI/ISA slot).
Equipped with one built-in VL-bus IDE connector and
one ISA IDE connector, the G486VPB system board can
control four drives and supports fast Mode 4 hard drives
and hard drives larger than 528MB under DOS. The
system board is also equipped with two serial ports, an
ECP/EPP parallel port, a floppy disk drive controller,
and one optional mini-DIN-6 connector for the PS/2
mouse.
The G486VPB can support 1MB to 128MB of memory
using 256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36,
8Mx36 and 16Mx36 72-pin SIM modules.
G486VPB
7
Processor
•5V CPUs
Intel 486SX/DX/DX2 (full series) and PentiumTM
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 Mode (SMM) and
CPU stopped clock
•Hardware provides flexible event-driven power
management scheme and easy CPU transition state:
Ready, Doze and Suspend
•Microsoft APM 1.1 compliant
•EPA Energy Star compliant design
Features and Specifications
PCI/ISASystemBoard
8
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 IDE
Interface to support an ATAPI compliant
CD-ROM or a tape drive
Cache Memory
•128KB, 256KB, or 512KB
•Supports Level 1 and Level 2 write-back/
write-through cache
Memory Onboard
•1MB to 128MB
•Two 72-pin SIMM sockets
•Supports memory parity check function
•Supports 256KBx36, 512KBx36, 1MBx36,
2MBx36, 4MBx36, 8MBx36 and 16MBx36 SIMMs
Expansion Slots
•Three PCI slots
•One shared PCI/ISA slot
•Three 16-bit ISA slots
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 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 missing or damaged, please
contact your dealer or sales representative for assistance.
PCI/ISASystemBoard
10
vInstallation 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 such as beds and carpeted floors which can
hinder air circulation. These areas also attract static
electricity which can damage some circuits on your
system board.
Make sure that the power source has a properly
grounded, three-pronged socket. It is essential that the
power connection be properly grounded for correct
functioning of your system board. For further protection,
we recommend that you use a surge suppressor. This
will protect the system board from damage that may
result from a power surge on the line.
Move items that generate magnetic fields away from
your system board, since magnetic fields can damage
your system board. Once you have selected the ideal
location, unpack the G486VPB system board carefully.
Handling the System Board
It is quite easy to inadvertently damage your system
board even before installing it to your system unit.
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