DFI WT70-EC User manual

WT70-EC
Rev. A+
System Board
Users Manual
47500105

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.
© 2001. All Rights Reserved.
Trademarks
Microsoft®MS-DOS®, WindowsTM, Windows®95, Windows®98,
Windows®98 SE, Windows®ME, Windows®2000 and Windows
NT®4.0 are registered trademarks of Microsoft Corporation. Intel®
and Pentium®4 are registered trademarks of Intel Corporation.
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
To avoid damage to the system:
 Use the correct AC input voltage range.
To reduce the risk of electric shock:
 Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.

Battery:
 Danger of explosion if battery incorrectly replaced.
 Replace only with the same or equivalent type recommend by
the manufacturer.
 Dispose of used batteries according to the battery
manufacturers instructions.
Joystick or MIDI port:
 Do not use any joystick or MIDI device that requires more than
10A current at 5V DC. There is a risk of fire for devices that
exceed this limit.
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 Jumper Settings for Clearing CMOS Data........................................
2.4 Jumper Settings for Wake-On-Keyboard/Mouse..................................
2.5 Jumper Settings for the PC Speaker or Buzzer Select..................
2.6 Jumper Settings for Wake-On-USB Keyboard................................
2.7 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 CPU Frequency Control..................................................................
3.1.9 Load Fail-Safe Defaults.....................................................................
3.1.10 Load Optimized Defaults..............................................................
3.1.11 Set Supervisor Password...............................................................
3.1.12 Set User Password..............................................................................
3.1.13 Save & Exit Setup.................................................................................
3.1.14 Exit Without Saving..............................................................................
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13
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47
51
55
58
64
68
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72
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15
18
20
21
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84
Chapter 4 - Supported Softwares
4.1 Desktop Management Interface.....................................................................
4.2 Intel 850 INF Update Utility for Windows95/98/2000/
ME................................................................................................................................................
4.3 Audio Drivers...................................................................................................................
4.4 Drivers and Utilities Installation Notes.....................................................
Appendix A - Using the Suspend to RAM
Function
A.1 Using the Suspend to RAM Function........................................................
Appendix B - System Error Messages
B.1 POST Beep.......................................................................................................................
B.2 Error Messages..............................................................................................................
Appendix C - Troubleshooting
C.1 Troubleshooting Checklist....................................................................................
75
78
79
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86

Introduction
1
6
1.1 Features and Specifications
1.1.1 Features
Chipset
 Intel®850 chipset
- Intel®82850 Memory Controller Hub (MCH)
- Intel®82801 I/O Controller Hub (ICH2)
Processor
The system board is equipped with Socket 423 (100MHz) for
installing a Pentium®4 processor.
 Intel®Pentium®4 processor
 400MHz system data bus
System Memory
 Four 184-pin RIMM sockets
- Two Direct-RDRAM channels with two RIMMs per channel
 Supports 128MB to 2GB system memory using 64Mbit,
128Mbit or 256Mbit technology, PC-600 or PC-800 RDRAM
 ECC supported
Please refer to System Memory in chapter 2 for more information.
Chapter 1 - Introduction

1
Introduction
7
Expansion Slots
The system board is equipped with 1 AGP slot, 4 dedicated PCI
slots and 1 shared PCI/CNR slot.
The AGP slot only supports 1.5V AGP 4x (1066MB/sec. bandwidth)
add-in cards. AGP is an interface designed to support high
performance 3D graphics cards for 3D graphics applications. It
handles large amounts of graphics data with the following features:
 Pipelined memory read and write operations that hide memory
access latency.
 Demultiplexing of address and data on the bus for nearly 100
percent efficiency.
CNR (Communication and Networking Riser) is an interface that
supports multi-channel audio, V.90 analog modem, phone-line based
networking or 10/100 Ethernet based networking riser board.
Onboard Audio Features
 18-bit stereo full-duplex codec with independent variable sam-
pling rate
 High quality differential CD input
 True stereo line level outputs
Compatibility
 Microsoft PC 98 compliant
 PCI 2.2, CNR 1.0 A type and AC 97 compliant
 Intel AGP version 2.0
ATX Double Deck Ports (PC 99 color-coded connectors)
 Two USB ports
 Two NS16C550A-compatible DB-9 serial ports
 One SPP/ECP/EPP DB-25 parallel port
 One mini-DIN-6 PS/2 mouse port
 One mini-DIN-6 PS/2 keyboard port
 One game/MIDI port
 Three audio jacks: line-out, line-in and mic-in

Introduction
1
8
Connectors
 One connector for 2 additional external USB ports
 One connector for IrDA interface
 Two IDE connectors
 One floppy drive interface supports up to two 2.88MB floppy
drives
 Three ATX power supply connectors
 One Wake-On-LAN connector
 One Wake-On-Ring connector
 CPU, chassis and second fan connectors
 One opened chassis alarm connector (optional)
 Three internal audio connectors (AUX-in, CD-in and TAD)
PCI Bus Master IDE Controller
 Two PCI IDE interfaces support up to four IDE devices
 Supports ATA/33, ATA/66 and ATA/100 hard drives
 PIO Mode 4 Enhanced IDE (data transfer rate up to 14MB/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 peripheral devices that meet the IrDA or ASKIR standard.
USB Ports
The system board supports 4 USB ports. Two onboard USB ports
are located at the ATX double deck ports of the board. The J16
connector on the system board allows you to connect the optional
3rd and 4th USB ports. These optional USB ports, which are
mounted on a card-edge bracket, will be provided as an option.
USB allows data exchange between your computer and a wide
range of simultaneously accessible external Plug and Play peripherals.

1
Introduction
9
BIOS
 Award BIOS, Windows®95/98/2000/ME Plug and Play
compatible
 Supports SCSI sequential boot-up
 Flash EPROM for easy BIOS upgrades (4Mbit)
 Includes Symbios Logic SCSI BIOS
 Supports DMI 2.0 function
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.
1.1.2 System Health Monitor Functions
The system board is capable of monitoring the following system
health conditions.
 Monitors system temperature and overheat alarm
 Monitors 5VSB/VBAT/1.5V/3.3V/5V/±12V/CPU voltages and
failure alarm
 Monitors the fan speed of the CPU fan, chassis fan and second
fan; controls the fan speed of the CPU fan and chassis fan; and
failure alarm
 Automatic CPU fan and chassis fan on/off control
 Read back capability that displays temperature, voltage and fan
speed
 Opened chassis alarm (optional)
Refer to the PC Health Status section in chapter 3 for more
information.

Introduction
1
10
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 Soft-Off By PWR-BTTN field of
the Power Management 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 and Resume On Ring in the Power
Management Setup section in chapter 3 for more information.
Important:
If you are using a modem add-in card, the 5VSB power source
of your power supply must support ≥ 720mA.
Wake-On-LAN
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. Refer to Wake-On-LAN Connector in
chapter 2 and Resume On LAN in the Power Management Setup
section in chapter 3 for more information.
Important:
The 5VSB power source of your power supply must support
≥ 720mA.

1
Introduction
11
Wake-On-Keyboard/Wake-On-Mouse
This function allows you to use the keyboard or PS/2 mouse to
power-on the system. Refer to Jumper Settings for Wake-On-
Keyboard/Wake-On-Mouse in chapter 2 and Keyboard/Mouse
Power On in the Integrated Peripherals section in chapter 3 for
more information.
Important:
 The power button will not function once a keyboard
password has been set in the KB Power On Password
field of the Integrated Peripherals submenu. You must type
the correct password to power-on the system. If you forgot
the password, power-off the system and remove the
battery. Wait for a few seconds and install it back before
powering-on the system.
 The 5VSB power source of your power supply must
support ≥ 720mA.
Wake-On-USB Keyboard
The Wake-On-USB Keyboard function allows you to use a USB
keyboard to wake up a system that is in the S3 (STR - Suspend To
RAM) state. Refer to Jumper Settings for Wake-On-USB Keyboard
in chapter 2 and USB KB Wake-Up From S3 in the Power
Management Setup section in chapter 3 for more information.
Important:
 If you are using the Wake-On-USB Keyboard function for 2
USB ports, the 5VSB power source of your power supply
must support ≥ 1.5A.
 If you are using the Wake-On-USB Keyboard function for 4
USB ports, the 5VSB power source of your power supply
must support ≥ 2A.
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. Refer to Resume
On Alarm in the Power Management Setup section in chapter 3 for
more information.

Introduction
1
12
ACPI STR
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. Currently, only Windows®98/2000/ME supports
the ACPI function. ACPI when enabled in the Power Management
Setup will allow you to use the Suspend to RAM function.
With the Suspend to RAM function enabled, you can power-off the
system at once by pressing the power button or selecting Standby
when you shut down Windows®98/2000/ME without having to go
through the sometimes tiresome process of closing files, applications
and operating system. This is because the system is capable of
storing all programs and data files during the entire operating session
into RAM (Random Access Memory) when it powers-off. The
operating session will resume exactly where you left off the next time
you power-on the system. Refer to Using the Suspend to RAM
Function in appendix A for more information.
Important:
The 5VSB power source of your power supply must support
≥ 1A.
AC Power Failure Recovery
When power returns after an AC power failure, you may choose to
either power-on the system manually, let the system power-on
automatically or return to the state where you left off before power
failure occurs. Refer to PWR Lost Resume State in the Integrated
Peripherals section in chapter 3 for more information.
Year 2000 Compliant
 Supports hardware Y2K function.
 Supports hardware Random Number Generator (RNG) to en-
able a new security and manageability infrastructure for PC.

1
Introduction
13
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/33, ATA/66 or ATA/100 IDE drives
þOne 34-pin floppy disk drive cable
þOne Main Board Utility CD
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

2
14
Hardware Installation
2.1 System Board Layout
Chapter 2 - Hardware Installation

2
Hardware Installation
15
2.2 System Memory
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.
Features
 Four RIMM sockets
- Two Direct-RDRAM channels with two RIMMs per channel
 Supports maximum of 32 Direct RDRAM devices per channel
 Supports 128MB to 2GB system memory using 64Mbit,
128Mbit or 256Mbit technology - PC-600 or PC-800 RDRAM
 Supports single-sided or double-sided RIMM
 RIMM with SPD (Serial Presence Detect) data structure will
provide optimal memory operation
 ECC supported

2
16
Hardware Installation
2.2.1 Important Installation Instructions
Certain rules must be followed when installing RIMM to obtain
optimum system performance.
Rule 1: Before installing or uninstalling a RIMM, power off the system
and unplug the power cord. Make sure the Power/Standby
LED is off.
Rule 2: The four RIMM sockets are divided into 2 banks - bank 0
(RIMM sockets 1 and 2) and bank 1 (RIMM sockets 3 and
4). Bank 0 must be populated first ensuring that RIMM
sockets 1 and 2 are installed with RIMMs. The memory
configuration (speed, number of devices, size and density) of
RIMMs in bank 0 and bank 1 must be identical.
Rule 3: Each bank supports a maximum of 32 devices, therefore, the
2 banks support a maximum of 64 devices.
Rule 4: The system board supports ECC or non-ECC RIMM. Use
the same type of RIMM in all sockets.
Rule 5: Due to RDRAMs signal routing, all RIMM sockets must be
populated with modules. If RIMM sockets 3 and 4 (bank 1)
are not populated with RIMMs,YOU MUST install them with
CRIMMs (Continuity RIMM). This is to avoid breaking the
signal lines which are a serial connection in a RAMBUS
interface and will allow the Direct Rambus Channel to
function properly. If, at any time, you wish to upgrade the
system memory, remove the CRIMMs and replace them with
RIMMs.

2
Hardware Installation
17
1. Pull the tabs which are at the ends of the socket to the side.
2. Position the RIMM 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 RIMM in place.
2.2.2 Installing a RIMM
A RIMM simply snaps into a RIMM socket on the system board. Pin
1 of the RIMM must correspond with pin 1 of the socket.
The CRIMM module included in the system board package looks
similar to the one shown below..

2
18
Hardware Installation
2.3 Jumper Settings for Clearing CMOS Data
Clear CMOS Data - Jumper JP5
If you encounter the following,
a) CMOS data becomes corrupted.
b) You forgot the supervisor or user password.
c) You are unable to boot-up the computer system because the
processors ratio was incorrectly set in the BIOS.
you can reconfigure the system with the default values stored in the
ROM BIOS.
To load the default values stored in the ROM BIOS, please follow
the steps below.
1. Power-off the system.
2. Set JP5 pins 2 and 3 to On. Wait for a few seconds and set JP5
back to its default setting, pins 1 and 2 On.
2-3 On:
Clear CMOS Data
1-2 On: Normal
(default)
1
2
3
1
2
3

2
Hardware Installation
19
3. Now power-on the system.
If your reason for clearing the CMOS data is due to incorrect
setting of the processors ratio in the BIOS, please proceed to
step 4.
4. After powering-on the system, press <Del> to enter the main
menu of the BIOS.
5. Select the CPU Frequency Control submenu and press <Enter>.
6. Set the CPU Clock Ratio field to its default setting or an
appropriate frequency ratio. Refer to the CPU Frequency Control
section in chapter 3 for more information.
7. Press <Esc> to return to the main menu of the BIOS setup
utility. Select Save & Exit Setup and press <Enter>.
8. Type <Y> and press <Enter>.

2
20
Hardware Installation
2.4 Jumper Settings for Wake-On-Keyboard/
Wake-On-Mouse
Wake-On-Keyboard/Wake-On-Mouse - Jumper JP2
The Wake-On-Keyboard/Wake-On-Mouse function allows you to use
the keyboard or PS/2 mouse to power-on the system. By default,
JP2 is disabled. To use this function, set JP2 to 2-3 On. Keyboard/
Mouse Power On in the Integrated Peripherals submenu of the
BIOS must be set accordingly. Refer to chapter 3 for details.
Warning:
1. If JP2 was enabled with a password set in the KB Power
On Password field, and now you wish to disable the
keyboard password function, make sure to set the
Keyboard/Mouse Power On field to Disabled prior to
setting JP2 to disabled. You will not be able to boot up the
system if you fail to do so.
2-3 On: Enable
1-2 On: Disable
(default)
1
2
3
1
2
3