DFI G486-EVB Bedienungsanleitung
G486-EVB
Rev. C
System Board
User’s Manual
-D24350415-
vCopyright1995byDFI,Inc.
All rights reserved.
No part of this document may be copied or reproduced
in any form or by any means 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 G486-EVB is a
trademark of Diamond Flower, Inc. All other product
names mentioned are trademarks or registered trade-
marks of their respective companies.
vFCCStatementonClassB
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
reception, 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 to an outlet on a circuit
different from that to which the receiver is
connected, or
•Consult the dealer or an experienced radio TV
technician for help.
Notice:
1. Any 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.
v Table of Contentsv
Introduction .................................................................................
Features and Specifications .................................................
Installation Overview .................................................................
Preparing the Area ................................................................
Handling the System Board ..................................................
Tips in Handling the System Board ...............................
Hardware Installation.............................................................
Memory Installation .........................................................
Installing the Modules ..............................................
Board Configuration ...............................................................
Jumper Settings ..............................................................
Locations of Jumpers JP3 and JP15 .......................
Jumper Settings for VL-Bus Add-on Boards ..........
Jumper Settings for Light and Deep Green ...........
Cache Configuration .......................................................
Jumper Settings for Cache Memory .......................
CPU Installation and Upgrade .......................................
Jumper Settings for CPUs ......................................
Write-Back CPUs Special Notice ............................
Installing Upgrade CPUs .........................................
Installing the System Board ..................................................
Initial Setup Program .................................................................
Award BIOS CMOS Setup Utility ..........................................
Standard CMOS Setup ...................................................
BIOS Features Setup .....................................................
Chipset Features Setup .................................................
Power Management Setup ............................................
Load BIOS Defaults ........................................................
Load Setup Defaults .......................................................
Password Setting ............................................................
IDE HDD Auto Detection ................................................
Save and Exit Setup .......................................................
Exit Without Saving ........................................................
1-1
1-1
2-1
2-1
2-2
2-2
2-3
2-3
2-5
2-6
2-7
2-7
2-10
2-11
2-12
2-14
2-15
2-16
2-17
2-50
2-55
3-1
3-2
3-2
3-5
3-7
3-8
3-9
3-9
3-10
3-11
3-14
3-14
Troubleshooting ...........................................................................
Appendix A: Types of Modules .................................................
Appendix B: System Error Report ............................................
Appendix C: Memory and I/O Maps ..........................................
Appendix D: 16-Bit ISA I/O Pin Assignments ..........................
Appendix E: VL-Bus I/O Pin Assignments ...............................
Appendix F: Connector Pin Assignments ...............................
Appendix G: Award BIOS Hard Disk Table .............................
4-1
A-1
B-1
C-1
D-1
E-1
F-1
G-1
Green486VL-BusSystemBoard
1-1 uIntroduction
vIntroduction
The G486-EVB is a green system board that meets the
Environmental Protection Agency’s Green PC require-
ments. It reduces energy consumption to 15 Watts or
less by automatically turning off peripherals or the entire
system, when not in use.
The G486-EVB may be equipped with 5V or 3.3V CPU.
It accommodates all of the Intel 486 family of CPUs
including the energy saving SL Enhanced CPUs. It will
also support the AMD and Cyrix CPUs.
The G486-EVB uses 256KB x 36, 1MB x 36 and 4MB
x 36 HSIM modules. The memory can be configured to
six different sizes from 1MB to 64MB. In addition, the
G486-EVB is equipped with three 32-bit VL-Bus, and
six 16-bit and one 8-bit ISA expansion slots.
Features and Specifications
Processor
Intel 486SX/SX-S/DX/DX2/DX-S/DX2-S/DX4 (full
series) and Pentium OverDrive
AMD 486DX/DX2/DXL/DXL2 (full series) /
DX2 NV8T/DX4 NV8T/DX2 SV8B/
DX4 SV8B
Cyrix 486S/DX/DX2 (full series) /DX2V/
DX4V/M1SC
G486-EVB
Introduction u1-2
Chipset
•EFAR - EC802GL: system and cache controller
EC100G: data buffer
Architecture
•VLB/ISA
Energy Efficient Design
•Supports 3.3V/3.45V/3.6V/4V/5V CPUs (jumper
selectable)
•Ready for Intel SL Enhanced CPUs
•Supports system power management
•Supports CPU stopped clock
•Supports optional external power management
switch
•Supports power saving video mode
•Four power-saving stages: Ready, Doze, Standby
and Suspend
•Built-in hardware auto-transition mechanism
•Microsoft APM supported
BIOS
•Award system BIOS
•Supports IDE HDDs larger than 528MB under DOS
(LBA mode only)
•Flash EPROM (option)
Cache Memory
•128KB, 256KB or 512KB direct map write-back or
write-through cache subsystem
•Uses 32KBx8, 64KBx8 or 128KBx8 SRAM
Green486VL-BusSystemBoard
1-3 uIntroduction
Memory Onboard
•Up to 64MB
•Four 72-pin SIMM sockets
•Supports single and/or double density SIMMs
•Supports 256KBx36, 512KBx36, 1MBx36,
2MBx36, 4MBx36 or 8MBx36 SIMMs
Expansion Slots
•Three VESA VL-Bus slots
•Six 16-bit ISA slots
•One 8-bit ISA slot
Slot Limitations:
Due to the height of the heat sink, once the
processor is in place, you cannot install full-length
add-in cards in ISA slot connectors J4/J10, J5/J11
and J6/J12. You may still install half-length or
shorter cards in those slots.
ZIF Socket
•237-pin ZIF socket (Intel Socket 3)
Board Dimensions
•22cm (8.58") x 25cm (9.75")
Baby AT form factor
PackageChecklist
The G486-EVB package contains the following items:
•The G486-EVB system board
•One G486-EVB user’s manual
If either of these items is missing or damaged, please
contact your dealer or sales representative for assistance.
G486-EVB
Installation Overview u2-1
vInstallation Overview
This chapter summarizes the steps in installing the
G486-EVB 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
installing the system board, obtain the memory you plan
to install. Please refer to the memory chart on page 2-3
for the number and type of High Density Single In-line
Memory (HSIM) modules needed.
Preparing the Area
Before unpacking the system board, make sure the
location you have selected is relatively free of dust and
static. 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.
Be 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 recom-
mend that you use a surge protection socket. 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 also damage your
system board. Once you have selected the ideal location,
unpack the G486-EVB system board carefully.
Green486VL-BusSystemBoard
2-2 uInstallation Overview
Handling the System Board
It is quite easy to inadvertently damage your system
board even before installing it in your system unit.
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 that no static build-up is present.
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) Do all preparation work on a static-free surface with
components facing up.
3) Hold the system board by its edges only. Be careful
not to touch any of the components, contacts or
connections, especially gold contacts on the board.
4) Avoid touching the pins or contacts on all modules
and connectors. Hold modules and connectors by
their edges.
Warning:
Electrostatic discharge (ESD) can damage your upgrade
processor, disk drives, add-in boards, and other
components. Perform the upgrade instruction
procedures described at an ESD workstation only. If
such a station is not available, you can provide some
ESD protection by wearing an antistatic wrist strap and
attaching it to a metal part of the system chassis. If a
wrist strap is unavailable, establish and maintain
contact with the system chassis throughout any
procedures requiring ESD protection.
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