DFI AK70 User manual

AK70
Rev. A+
System Board
Users 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 manufacturers
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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37
40
44
48
50
51
51
52
52
53
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12
14
16
17

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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 .....................................................................
54
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

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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

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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 users 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.

11
2.1 System Board Layout
Chapter 2 - Hardware Installation

2
12
Hardware Installation
2.2 System Memory
The system board is equipped with three 168-pin DIMM (Dual
In-line Memory Module) sockets that suppor t x64/x72 PC
SDRAM DIMM, 3.3V. PC SDRAM (Synchronous Dynamic Random
Access Memory) uses a fast memory interface technology that
includes using the clock on the chip to synchronize with the CPU
clock so that the timing of the memory chips and the timing of the
CPU are synchronized. This saves time during transmission of data,
subsequently increasing system performance.
The system board also supports the ECC (Error Checking and
Correction) function. To use this function, you must install DIMM
that supports parity. That is, DIMM that typically has 9 memory
chips per side. This kind of module has 8 standard memory chips
and a parity chip. DIMM with no parity has 8 standard memory
chips only. Refer to chapter 1 (System Memory section) for
detailed specification of the memory supported by the system
board.
Warning:
Electrostatic discharge (ESD) can damage your system board, 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.

2
Hardware Installation
13
Pin 1
Notch
Key
Tab
Tab
2.2.1 Installing the DIM Module
A DIM module simply snaps into a DIMM socket on the system
board. Pin 1 of the DIM module must correspond with Pin 1 of
the socket.
1. Pull the tabs which are at the ends of the socket to the side.
2. Position the DIMM above the socket with the notches in the
module aligned with the keys on the socket.
3. Seat the module vertically into the socket. Make sure it is
completely seated. The tabs will hold the DIMM in place.

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14
Hardware Installation
2. Push the slides of the URM downwards to the OPEN position.
3. Push the retention latches on the top corners of the Athlon
processor module inwards until they click.
4. Position the processor above Slot A with the notch in the
2.3 Processor Installation
The system board is equipped with a processor slot (Slot A). The
ends of the slot are installed with the Universal Retention
Mechanism (URM). URM is used to hold a AMD Athlon processor
onto the slot.
Warning:
The processor must be kept cool by using a fan with
heatsink. Leave certain space clearances to maintain proper
airflow once the processor and heatsink are installed. All
cables (for floppy drive, hard drive, CD-ROM, etc.) must be
routed clear of the processor and its airspace. Otherwise, the
processor will overheat subsequently damaging the processor
and the system board.
2.3.1 Installing the Processor
There are retention latches on the top of the AMD Athlon
processor module. Before installing the processor, you must push
the retention latches inwards until they click.
1. Position the URM located at each end of Slot A into its upright
position.
Original
position
Upright
position

2
Hardware Installation
15
2.3.2 Removing the Processor
1. Make the slides of the URM glide to the OPEN position.
2. Push the retention latches on the top corners of the processor
module inwards until they click.
3. Lift the processor until it is enitrely freed from Slot A.
Slit of the
URMs tab
Slide
Ta b
Slide
processor aligned with the key on the slot. Push the
processor down firmly, with even pressure on both sides of
the top, until it is completely seated.
3. Pull out the retention latches loacted at the top corners of the
processor module until they click into place and lock.
4. Make the slides of the URM glide to the LOCK position.

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16
Hardware Installation
2.4 Jumper Settings for Clearing CMOS Data
Jumper JP30
Clear CMOS Data
If, for some reason, the CMOS
data becomes corrupted or you
forgot the supervisor/user
password, the system can be
reconfigured with the default
values stored in the ROM BIOS.
To load the default values, power
off your system and unplug the
power cord. Set JP30 pins 1
and 2 to On. Wait for a few
seconds and set JP30 back to its
default setting, pins 2 and 3 On.
You may now plug the power
cord and power-on your system.
1-2 On:
Clear CMOS data
2-3 On: Normal
(default)
32 1321

2
Hardware Installation
17
2.5.2 PS/2 Mouse and Keyboard Ports
The system board is equipped with
an onboard PS/2 mouse (Green) and
PS/2 keyboard (Purple) ports - both
at location KYB1 of the ATX double
deck ports. The PS/2 mouse port
uses IRQ12. If a mouse is not
connected to this port, the system
will reserve IRQ12 for other
expansion cards.
Warning:
Make sure to turn off your
computer prior to connecting
or disconnecting a mouse or
keyboard. Failure to do so may
damage the system board.
2.5 Ports and Connectors
2.5.1 Serial Ports
The system board is equipped with
onboard serial ports - COM 1 and
COM 2; both in Teal/Turquoise color
located at the ATX double deck
ports of the board.
These ports are RS-232C
asynchronous communication ports
with 16C550A-compatible UARTs
that can be used with modems, serial
printers, remote display terminals,
and other serial devices. You can set
the serial ports I/O address in the
Integrated Peripherals submenu of
the BIOS.

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18
Hardware Installation
2.5.4 Floppy Disk Connector
The system board is equipped with a shrouded floppy disk header
that supports two standard floppy disk drives. To prevent
improper floppy cable installation, the shrouded floppy disk header
has a keying mechanism. The 34-pin connector on the floppy cable
can be placed into the header only if pin 1 of the connector is
aligned with pin 1 of the header.
2.5.3 Parallel Ports
The system board has a standard
printer port for interfacing your PC
to a parallel printer. It supports SPP,
ECP and EPP modes. You can set
the ports mode in the Integrated
Peripherals setup of the Award
BIOS.
Setting
SPP
(Standard Parallel Port)
ECP
(Extended Capabilities Port)
EPP
(Enhanced Parallel Port)
Function
Allows normal speed operation
but in one direction only.
Allows parallel port to operate in
bidirectional mode and at a speed
faster than the SPPs data transfer
rate.
Allows bidirectional parallel port
operation at maximum speed.

2
Hardware Installation
19
2.5.5 IDE Hard Disk Drive Connectors
The system board is equipped
with two shrouded PCI IDE
headers that will interface four
Enhanced IDE (Integrated Drive
Electronics) hard disk drives. To
prevent improper IDE cable
installation, each shrouded PCI
IDE header has a keying
mechanism. The connector on the
IDE cable can be placed into the
header only if pin 1 of the
connector is aligned with pin 1 of
the header.
Connecting the Hard Disk Cable
1. If you are connecting two hard drives, install the connector of
the IDE cable into the primary shrouded IDE header
(connector IDE1). If you are adding a third or fourth IDE
device, install the connector of the other IDE cable into the
secondary shrouded IDE header (connector IDE2).
Connecting the Floppy Disk Cable
1. Install the 34-pin header
connector into the shrouded
floppy disk header (FLP1) on
the system board. The
colored edge of the ribbon
should be aligned with pin 1
of FLP1.
2. Install the other 34-pin
header connector(s) into the
disk drive(s). Align the
colored edge of the daisy
chained ribbon cable with pin
1 of the drive edge
connector(s). The end-most connector should be attached to
the drive you want to designate as Drive A.

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20
Hardware Installation
2. Install the other header connector(s) into the device with the
colored edge of the ribbon cable aligned with pin 1 of the
drive edge connector(s).
Note:
Refer to your disk drive users manual for information about
selecting proper drive switch settings.
Adding a Second IDE Hard Drive
When using two IDE drives, one must be set as the master and
the other as the slave. Follow the instructions provided by the
drive manufacturer for setting the jumpers and/or switches on the
drives.
The system board supports Enhanced IDE or ATA-2, ATA/33 or
ATA/66 hard drives. We recommend that you use hard drives
from the same manufacturer. In a few cases, drives from two
different manufacturers will not function properly when used
together. The problem lies in the hard drives, not the system
board.
Important:
If you encountered problems while using an ATAPI CD-ROM
drive that is set in Master mode, please set the CD-ROM
drive to Slave mode. Some ATAPI CD-ROMs may not be
recognized and cannot be used if incorrectly set in Master
mode.