DFI AK70 User manual

AK70
Rev. A+
System Board
Users Manual
41300007

Copyright
This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior written
permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any express
or implied warranties of merchantability or fitness for any particular
purpose.The user will assume the entire risk of the use or the results
of the use of this document. Further, the manufacturer reserves the
right to revise this publication and make changes to its contents at any
time, without obligation to notify any person or entity of such revisions
or changes.
All Rights Reserved. © 2000
Trademarks
Microsoft®MS-DOS®, WindowsTM ,Windows®95 and Windows®98
are registered trademarks of Microsoft Corporation. AMD AlthlonTM
is a registered trademark of Advanced Micro Devices, Inc. Award is a
registered trademark of Award Software, Inc. Other trademarks and
registered trademarks of products appearing in this manual are the
properties of their respective holders.
Caution:
Danger of explosion if battery incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.
Dispose of used batteries according to the battery manufacturers
instructions.

FCC and DOC 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 interference 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 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.

Table of Contents
Chapter 1 - Introduction
1.1 Features and Specifications ....................................................................
1.2 Package Checklist .........................................................................................
Chapter 2 - Hardware Installation
2.1 System Board Layout ................................................................................
2.2 System Memory ...........................................................................................
2.3 Processor Installation .................................................................................
2.4 Jumper Settings for Clearing CMOS Data. ................................
2.5 Ports and Connectors .............................................................................
Chapter 3 - Award BIOS Setup Utility
3.1 The Basic Input/Output System ........................................................
3.1.1 Standard CMOS Features .....................................................
3.1.2 Advanced BIOS Features .......................................................
3.1.3 Advanced Chipset Features .................................................
3.1.4 Integrated Peripherals ...............................................................
3.1.5 Power Management Setup ....................................................
3.1.6 PnP/PCI Configurations ...........................................................
3.1.7 PC Health Status .........................................................................
3.1.8 Load Fail-Safe Defaults .............................................................
3.1.9 Load Optimized Defaults ......................................................
3.1.10 Set Supervisor Password .......................................................
3.1.11 Set User Password ....................................................................
3.1.12 Save & Exit Setup .......................................................................
3.1.13 Exit Without Saving ....................................................................
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60
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface ........................................................
4.2 Drivers ...............................................................................................................
Appendix A - System Error Messages
A.1 POST Beep ....................................................................................................
A.2 Error Messages .............................................................................................
Appendix B - Troubleshooting
B.1 Troubleshooting Checklist .....................................................................
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57
58
58

6
1.1 Features and Specifications
1.1.1 Features
Chipset
AMD-750
AGP chipset
Processor
The system board is equipped with a single 242-pin Slot A
mechanical connector supporting all AMD Athlon processor
modules. The system board is also equipped with a switching
voltage regulator that supports 1.3V to 2.05V core voltage for
various processors.
AMD Althlon processor module - 500MHz and faster
200MHz system interface speed (DDR - Double Data Rate)
Auto-detect processor voltage
Clock multiplier 5.0 to 10.0
ECC protection on system and cache interfaces
Cache Memory
Processor built-in 128-Kbyte L1 cache
Processor built-on 512-Kbyte L2 cache
System Memory
16MB to 768MB memory using unbuffered DIMMs
Three 168-pin 3.3V DIMM sockets
Supports PC-100 SDRAM memory
ECC supported (uses x72 PC SDRAM DIMM)
Chapter 1 - Introduction
DIMMs
2MBx64/x72
4MBx64/x72
8MBx64/x72
16MBx64/x72
32MBx64/x72
Memory Size
16MB
32MB
64MB
128MB
256MB

7
1
Introduction
Expansion Slots
The system board is equipped with 1 dedicated AGP slot and 5
dedicated PCI slots. All PCI slots are bus masters. AGP is an
interface designed to support high performance 3D graphics cards.
It utilizes a dedicated pipeline to access system memory for
texturing, z-buffering and alpha blending; delivering up to 533MB/
sec. bandwidth for 3D graphics applications.
Desktop Management Interface (DMI)
The system board comes with a DMI 2.0 built into the BIOS. The
DMI utility in the BIOS automatically records various information
about your system configuration and stores these information in
the DMI pool, which is a part of the system board's Plug and Play
BIOS. DMI, along with the appropriately networked software, is
designed to make inventory, maintenance and troubleshooting of
computer systems easier. Refer to Chapter 4 for instructions on
using the DMI utility.
ATX Double Deck Ports
2 USB ports
2 DB-9 serial ports
1 DB-25 parallel port
1 min-DIN-6 PS/2 mouse port
1 min-DIN-6 PS/2 keyboard port
Connectors
1 connector for IrDA interface
1 connector for 2 additional external USB ports
2 IDE connectors
1 floppy connector
1 20-pin ATX power supply connector
1 Wake-On-Ring connector
1 Wake-On-LAN connector
1 chassis fan connector, 2 CPU fan connectors for CPU Fan1
and CPU Fan2

8
Introduction
1
PCI Bus Master IDE Controller
Two PCI IDE interfaces support up to four IDE devices
Supports ATA/33 or ATA/66 hard drives
PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up
to 16.6MB/sec.)
Bus mastering reduces CPU utilization during disk transfer
Supports ATAPI CD-ROM, LS-120 and ZIP
IrDA Interface
The system board is equipped with an IrDA connector for
wireless connectivity between your computer and peripheral
devices. It supports infrared peripheral devices that meet the
ASKIR or HPSIR standard.
USB Ports
The system board supports 4 USB ports. USB allows data
exchange between your computer and a wide range of
simultaneously accessible external Plug and Play peripherals.
BIOS
AMD/Award BIOS with ACPI
Flash EPROM for easy BIOS upgrades
Supports DMI 2.0 function
Auto-detect and report system health status
2 Mbit flash memory
1.1.2 System Health Monitor Functions
The system board is capable of monitoring the following system
health conditions.
Monitors processor/system temperature and processor
overheat alarm
Monitors 3.3V/±5V/±12V/VCORE voltages and failure alarm
Monitors processor/chassis fan speed and failure alarm
Read back capability that displays accurate temperature, voltage
and fan speed

9
1
Introduction
1.1.3 Intelligence
Automatic CPU/Chassis Fan Off
The CPU and chassis fans will automatically turn off once the
system enters the Suspend mode.
Dual Function Power Button
Depending on the setting in the BIOS setup, this switch will allow
the system to enter the Soft-Off or Suspend mode.
Wake-On-Ring
This feature allows the system that is in the Suspend mode or Soft
Power Off mode to wake-up/power-on to respond to calls
coming through an internal or external modem. Refer to Wake-
On-Ring Connector in chapter 2 for more information.
Wake-On-LAN Ready
The Wake-On-LAN function allows the network to remotely wake
up a Soft Power Down (Soft-Off) PC. Your LAN card must
support the remote wakeup function.
Important:
The 5VSB power source of your power supply must support
≥
720mA (minimum).
RTC Timer to Power-on the System
The RTC installed on the system board allows your system to
automatically power-on on the set date and time.
ACPI
The system board is designed to meet the ACPI (Advanced
Configuration and Power Interface) specification. ACPI has energy
saving features that enables PCs to implement Power Management
and Plug-and-Play with operating systems that support OS Direct
Power Management.

10
Introduction
1
Virus Protection
Most viruses today destroy data stored in hard drives. The system
board is designed to protect the boot sector and partition table
of your hard disk drive.
1.2 Package Checklist
The system board package contains the following items:
þThe system board
þA users manual
þOne IDE cable for ATA/66 or ATA/33 IDE drives
þOne 34-pin floppy disk drive cable
þOne CD
¨One card-edge bracket with two USB ports (optional)
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.
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